Download Brochure

Frequently asked questions

Frequently Asked Questions
ENTES NETWORK ANALYZERS

  1. Can you explain basic installation process? ?
    Ans.:
    1. Please, apply 85-300 vac/dc supply connection through a1, a2 terminals.
    2. Please, apply 3-phase voltage connection through n, l1, l2, l3 terminals.
    3. An external current transformer must be used for the 3-phase system connection to k1, l1, k 2, l2, k3, l3 terminals where the current up to 5a can be input.
    4. And connect the digital inputs and outputs as per the selected model type
    5. Programme as per the manual
  2. Which models does MPR1 series network analyzers have?
    Ans.:

    It has following models:

    1. MPR-14S
    2. MPR-15S-22
    3. MPR-16S-21
    4. MPR-17S-23
  3. Does MPR1 series models support communication?
    Ans.:

    Yes. They all support MOD BUS RTU RS-485 communication protocol.

  4. Does MPR1 series models have temperature input?
    Ans.:

    No. They do not support any temperature input.

  5. Which model of MPR1 series does not have inbuilt memory and how much memory do other remaining models have?
    Ans.:

    MPR-14s does not have inbuilt memory and other models have up to 4MB.

  6. What is supply voltage range for MPR1?
    Ans.:

    The input voltage range is 85-300 VAC/VDC with frequency range is 50 to 60 HZ.

  7. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between -10 to 55 °c
    2. Storage temperature -20 to 70 ºc
    3. Maximum ambient humidity 95% RH
  8. Real time clock provided in MPR1 series?
    Ans.:

    Yes. Real time clock is provided in MPR1 series

  9. How much current and voltage measurement input MPR1 has?
    Ans.:

    It has 3 voltage measurement input and 3 current measurement inputs

  10. Which type of connections does MPR1 supports?
    Ans.:

    It supports measurement by 5 different connections: 3-phsae 4-wire, 3-phase 3-wire, 3-phase ARON, 3- phase 4-wire balanced, 3-phase 3-wire balanced

Frequently Asked Questions
ENTES THYRISTOR SWITCH

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply to the model
    2. Connect capacitors at c1, c2, c3
    3. Connect phases at l1 and l3 and neutral to n
    4. Connect 5-30 VDC to triggering inputs
    5. Connect external THERMIC to the ext terminal
    6. Connect communication wires to the terminals
  2. What utilization area ENTES static contactor has?
    Ans.:

    Static contactors are used with special power factor control relays for more efficient power factor control on systems with quick-changing power factors by providing the necessary capacitive power during the quick changes of the system. By using static contactors, power factor correction capacitors can be switched on and then off in a 1 period time (20 milliseconds), thus providing the necessary capacitive power for the quick switching loads.

  3. What general features do ENTES static contactors have?
    Ans.:

    Following are the highlighted features:

    1. Reaction time shorter than 20 ms
    2. Triggering via rs-485
    3. reactor THERMIC input
    4. thermal protection
    5. warning LEDs
    6. long operational life
    7. easy installation
    8. silent operation
  4. What should we do when red LEDs are switched on but green LED is blinking?
    Ans.:

    It means that triggering signal is being created but THYRISTORS can’t switch. If this occurs, device must be immediately turned off and necessary controls must be done.

  5. What if only green led is blinking?
    Ans.:

    This means device has internal temperature error.

Frequently Asked Questions
ENTES CURRENT MONITORING RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set values as per the requirement
  2. What are ENTES current monitoring relays?
    Ans.:

    AKC series current monitoring relays are designed to protect motors and systems against under or over current with a current adjustment and two delay adjustments.

  3. Which delay adjustments do ENTES current monitoring relays have?
    Ans.:

    They have two adjustments delay which are start-up and tripping

  4. What is the main purpose of using over/under current monitoring relays?
    Ans.:

    AKC-01A /AKC-03A over/under Current Monitoring Devices are designed to protect motors and systems against over/under current with a current adjustment.

  5. What is the purpose of using start-up delay?
    Ans.:

    Start-up delay is developed in order to prevent false contact turn-off arising from initial motor start-up (demurrage) currents.

  6. What environmental usage current monitoring relays has?
    Ans.:

    Temperature range is between -5°C to 55°C

Frequently Asked Questions
ENTES ANALOG TIME RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set time as per the requirement
  2. What are ENTES time relays?
    Ans.:

    Analogue time switch controls the daily operation of electrical devices in user-defined times.

  3. What are the usage environmental requirements?
    Ans.:

    Operating temperature is between -10 to +50°C

    Storage temperature -25 to +70°C

  4. What is the operating principle ENTES analogue time relays?
    Ans.:

    The operating time requested by the users is adjusted by moving the pins on the device to the right (OFF) or the left (ON). Each pin corresponds to 15 minutes. The current time is adjusted by turning the vertical dial downward. Manual operating switch on the front panel allows the device to be operated manually regardless of the set time.

  5. What is auxiliary supply range and frequency range time relays have?
    Ans.:

    It is 220 /230 VAC and frequency range is 50/60 Hz

  6. How much back up time analogue time relays have?
    Ans.:

    Up to 100 hours

Frequently Asked Questions
ENTES ASTRONOMIC TIME RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set time as per the requirement
  2. What are ENTES astronomic time relays?
    Ans.:

    Astronomic Time Relays are smart time relays which are capable of automatically calculation of the sunrise and sunset times.

  3. What is the main purpose of using astronomic time relays?
    Ans.:

    They are designed to control the devices which are connected to output contacts on user defined times, sunrise and sunset times.

  4. Does astronomic time relays have real time clock?
    Ans.:

    Yes. They have internal real time clock.

  5. Does astronomic time relays have password protection?
    Ans.:

    Yes. They have Password protection for security.

  6. What ambient temperature range CKR series relays required?
    Ans.:

    It is -10°C to +55°C

Frequently Asked Questions
ENTES AMMETERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect current measurement inputs to the respective terminals
    3. Programme as per the manual
  2. What are ENTES Ammeters?
    Ans.:

    ENTES Ammeters measure the current values of networks in industrial plants.

  3. What are EPM-4D models and their main features?
    Ans.:

    It is Ammeter with Demand. EPM-4D is designed to measure RMS value of AC current which flows from the line and saving the instant and average demands. The current transformer ratio can be set between 5/5A and 10000/5A by the buttons on the panel.

  4. What are EPM-4A models and their main features?
    Ans.:

    It is Ammeter with Demand. With additional features to EPM-4D, current transformer ratio is selected. As "DRCT" CT-25 current transformer which can measure between 0.07A - 200 A must be used.

  5. What is latch function and how we can use it?
    Ans.:

    Latch function is used to select the output relay operation mode. Either "off" or "on" position may be selected. At position "off": If the current value returns to preset limits, output relay is switched off. At position "on": Even if the current value returns to preset limits, output relay remains switched on and switches off only by pressing the "Set" button.

  6. What is the operating voltage and frequency range of EPM series AMMETERS?
    Ans.:

    Operating voltage range will vary as per the selected model and Operating Frequency range is 45-65 Hz

  7. What are the usage environmental requirements?
    Ans.:

    Operating temperature is between - 5 to +50°C

  8. Which current do ammeter EPM-14 measures?
    Ans.:

    EPM-14 is designed to measure the current of the single phase systems.

  9. Is there password protection provided in EPM-14?
    Ans.:

    Yes A password can be arranged from ‘CODE’ menu in order to prevent change of the setting by unauthorized person.

  10. Do DC Ammeter models support communication?
    Ans.:

    Yes. They support communication MOD BUS RTU protocol

Frequently Asked Questions
ENTES CONTROL TRANSFORMERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Implement as per the requirements
  2. What are ENTES control transformers?
    Ans.:

    Control transformers ensure the safe operation of measuring devices with 24 V AC supply voltage for electrical control panels.

  3. How much Minimum primary-secondary isolation voltage values required?
    Ans.:

    It is 2200 VAC for 400V transformers, 1800 VAC for 230V transformers

  4. How much ambient temperature isolation transformers required?
    Ans.:

    It is up to 50°C

  5. What highlighted features control transformers have?
    Ans.:
    1. Class 1 transformer
    2. Vacuum impregnated varnish method that improves efficiency by reducing heat losses, provides protection against humidity, and enables quiet operation.
    3. Iron core with high magnetic permeability.
    4. High quality copper winding

Frequently Asked Questions
ENTES CONVERTERS

  1. Can you explain basic installation process?
    Ans.:
    1. Perform Mod Bus connection of the device and then insert the SIM card in SIM card slot.
    2. Connect the adapter to the ground and +V inputs.
    3. Connect GEM to PC via USB
  2. What are ENTES converters?
    Ans.:

    Mod bus Gateways enable accessing from energy management software to devices that communicate with Mod bus protocol over GPRS or Ethernet network.

  3. Can we use RS 232 and RS 485 ports simultaneously?
    Ans.:

    No we cannot use them simultaneously

  4. How can we know Ethernet connection successful or not?
    Ans.:

    LED indicator gets ON after successful connection of ETHERNET

  5. Which series have GSM functionality?
    Ans.:

    GSM is only available in GEM-05, GEM-10, GEM-10SH, MY GEM series

Frequently Asked Questions
ENTES CURRENT TRANSFORMERS

  1. Can you explain basic installation process?
    Ans.:
    1. Installation is decided as per the selected model.
    2. Connect primary as per the current rating
    3. Keep distance less as possible from the ammeter
  2. What is current transformer?
    Ans.:

    A current transformer is a type of transformer that is used to reduce or multiply an alternating current. It produces a current in its secondary which is proportional to the current in its primary. Current transformers, along with voltage or potential transformer, are instrument transformers.

  3. What is the current transformer ratio?
    Ans.:

    The CT ratio is the ratio of primary current input to secondary current output at full load. ... For example, a CT with a ratio of 100:5 is rated for 100 primary amps at full load and will produce 5 amps of secondary current when 100 amps flow through the primary.

  4. Why CT is shorted?
    Ans.:

    Unless a burden (i.e. meters, relays, etc.) is connected to the CT, current transformers should always be shorted across the secondary terminals. The reason is very high voltages will be induced at the terminals. Think of the CT as a transformer, with a 1 turn primary and many turns on the secondary.

  5. Is current transformer a step up transformer?
    Ans.:

    Current Transformer better known as CT is generally a step down transformer. ... So a CT is placed in the circuit with the primary winding in series with the circuit and secondary winding connected to a current measuring instrument.

  6. What type of current transformers ENTES have?
    Ans.:
    1. Fixed Core Current Transformers
    2. Split Core Current Transformers
    3. Compact Split Core Current Transformers
    4. 3 Phase Current Transformers
  7. What exactly ENTES LV CTs are?
    Ans.:

    ENTES LV Current Transformers are measuring transformers which transform the primary current by a specified ratio to its secondary side with a phase difference of 0 degrees. They provide isolation of the relays and measuring devices from the HV side of the network.

Frequently Asked Questions
ENTES DUTY CONTACTORS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect three phases at L1, L2, L3
    2. Connect outputs to the respective terminals
    3. For other details refer the manual
  2. What are ENTES capacitor duty contactors?
    Ans.:

    ENTES capacitor duty contactors are specially designed for the control of capacitors in compensation panels. ENT-KT capacitor duty contactors are two-stage contactors designed to prevent high inrush currents.

  3. What working principle basically ENTES duty contactors have?
    Ans.:

    ENT-KT capacitor duty contactors are two-stage contactors designed to prevent high inrush currents. With auxiliary ignition block, ENT-KT transmits inrush currents over damping resistors and enables excess currents to stay within acceptable limits. (in 2.5 and 5kvar models, the special reinforced contact alloy enables durability against inrush currents.)

  4. What highlighted features ENTES duty contactor has?
    Ans.:
    1. Auxiliary contact block
    2. Three phase connection
    3. Possibility to connect capacitors up to 60 KVAR
    4. Coil voltage: 220-230 v ac 50/60 Hz
    5. In accordance with IEC-497
    6. Long electrical life
  5. What advantage does ENTES duty contactor have due to its advance features?
    Ans.:
    1. Contact life improves.
    2. The risk of reactive penalties resulting from contactor faults (power factor correction error) decreases.
    3. Capacitor faults decrease.
    4. Energy quality improves with prevention of voltage fluctuations.
    5. Since the maintenance interval of the power factor correction system is extended and unexpected fault situations are reduced, unplanned production stops are decreased.

Frequently Asked Questions
ENTES FREQUENCY METERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect frequency measurement inputs to the respective terminals
    3. Programme as per the manual
  2. What are ENTES frequency meters?
    Ans.:

    EFC-3 Frequency meter is developed for accurate measurement of the line frequency in industrial plants.

  3. What measuring range EFC-3 has?
    Ans.:

    EFC-3; measures the line frequency accurately between 20 and 400 Hz

  4. What operating frequency EFC-3 has?
    Ans.:

    It is between 45-65 Hz

  5. What is operating principle does EFC-3 has?
    Ans.:

    EFC-3 is a 3-digit device and its "crystal" controlled. measuring circuit is very accurate and has a long life. The supply input for EFC-3 may be connected as phase-neutral or phase-phase.

  6. What are the usage environmental requirements?
    Ans.:

    Operating temperature is between - 5 to +50°C

Frequently Asked Questions
ENTES ISOLATING TRANSFORMERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Implement as per the requirements
  2. What are ENTES isolating transformers?
    Ans.:

    Isolating transformers ensure the safe operation on the secondary side by isolating them from the primary voltage. Isolation transformers have constant input and output voltages.

  3. How much Minimum primary-secondary isolation voltage values required?
    Ans.:

    It is 4400 VAC for 400V transformers, 3600 VAC for 230V transformers

  4. How much ambient temperature isolation transformers required?
    Ans.:

    It is up to 50°C

  5. What highlighted features isolation transformers have?
    Ans.:
    1. High efficiency
    2. Reducing instant current fluctuations
    3. Iron core with high magnetic permeability.
    4. High quality copper winding

Frequently Asked Questions
ENTES L.V. CAPACITORS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect three phases at L1, L2, L3
    2. Connect outputs to the respective terminals
    3. For other details refer the manual
  2. What are ENTES L.V. capacitors and where they get used?
    Ans.:

    ENTES ENT.C series LV Power Capacitors are used together with Power Factor Controllers in order to store the reactive energy and to improve the power factor. ENTES LV Power Capacitors have a “self-healing” feature.

  3. What highlighted features ENTES L.V. capacitors have?
    Ans.:
    1. Smooth operation under heavy conditions
    2. Safe operation with over pressure tear-off fuse
    3. Self-healing ability
    4. Durable enclosure and compact design
    5. Operating life of 110.000 hours
  4. What is basic principle working of ENT.C capacitors?
    Ans.:

    ENTES ENT.C series power capacitors are designed for heavy and poor conditions that shorten operating life during operation. The over pressure tear-off fuse prevents capacitors from exploding when their operational life ends or extreme electrical thermal strains occur.

  5. ENT.C series capacitors made up of which film?
    Ans.:

    ENT.C series capacitors are produced using metalized polypropylene film with self-healing ability.

  6. Which different feature does ENT.C.100 relative to other?
    Ans.:

    ENT.C.100 series capacitors have superior durability with their ability to operate under heavy duty conditions and of 130.000 hours.

  7. How to improve operating life of capacitors?
    Ans.:

    Deforming effects occur during the switching of capacitors. The inrush current of the capacitor reduces the operating life of both the switching capacitor and the other capacitors already connected. In order to avoid these negative effects capacitors should be used with capacitor duty contactors.

  8. What best features do ENTES.C capacitors have?
    Ans.:

    ENT.C series power capacitors are designed to withstand the severe and poor conditions which may shorten the operating life during reactive power compensation. It has overpressure disconnection system, the explosion of capacitors due to an electrical/thermal overload or being the end of its operating life is prevented.

Frequently Asked Questions
ENTES REACTORS

  1. Can you explain basic installation process?
    Ans.:
    1. Select the single phase or three phase model as per the requirement
    2. Connect input and outputs to the respective terminals
    3. Read the manual for other details
  2. What are line reactors?
    Ans.:

    A line reactor is essentially an inductor—a coil of wire that forms a magnetic field as current flows through it. The magnetic field limits the rate of rise of the current, which reduces harmonics and helps avoid unnecessary tripping of the drive.

  3. Where do ENTES ENT.SGR SERIES reactors get used?
    Ans.:

    ENTES ENT.SGR Series line reactors are used between the network and motor drives. Connecting these reactors serially between the network and motor drives provides many benefits to the system.

  4. What are the main advantages do ENTES line reactors have?
    Ans.:
    1. Limits the peaks that occur in the current
    2. Prevents drive vibrations
    3. Limits harmonic currents
    4. Protects the motor drive from high voltages
    5. Prolongs the system’s operating life
  5. What highlighted features do ENTES line reactors have?
    Ans.:
    1. Iron core with high magnetic permeability
    2. Voltage drop UK=4%. UK=2% type reactors can be manufactured on demand
    3. Impregnated with varnish under vacuum to ensure silent, efficient and moisture-free operation
    4. CE marked and complies with EN 61558-2-20 standard
  6. What are shunt reactors and its applications?
    Ans.:

    Shunt reactors are designed to compensate the capacitive power used by long underground power lines, ups, computers, electronic ballast, and energy saving lamps.

  7. What is the difference between shunt reactor and series reactor?
    Ans.:

    Key points in difference between shunt reactor and series reactor: shunt reactor limits the over voltage but series reactor limits the high current. Shunt reactor uses as reactive power absorber, series reactor uses as current limiter and increase the impedance of the circuit.

  8. What are the salient features does ENTES shunt reactor have?
    Ans.:
    1. Single or three-phase, highly conductive design with air gap
    2. F isolation class insulation material on the windings resistant to 155 c high quality copper or aluminium windings (copper coated terminal on aluminium windings)
    3. Custom designs to meet customer specifications
    4. Vacuum impregnated varnish method that improves efficiency by reducing heat losses, provides protection against humidity
  9. Does ENTES shunt reactors have thermal overload protection?
    Ans.:

    Yes. They have thermal overload protection

Frequently Asked Questions
LIQUID LEVEL CONTROLLERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. programme as per the manual
  2. What are ENTES liquid level controllers?
    Ans.:

    Liquid Level Controller is used for controlling liquid levels in wells and liquid tanks at industrial plants.

  3. What is the main purpose of using liquid level controllers?
    Ans.:

    Liquid level controllers are commonly used for the level and discharge control of conductive liquids in tanks located in industrial plants and domestic applications.

  4. What is operating voltage and frequency range?
    Ans.:

    It is 190-260 V AC, 340-460 V AC and frequency is 50/60 Hz

  5. Can we adjust sensitivity of liquid level controllers?
    Ans.:

    Yes. Between 5-50 kilo ohms

  6. What ambient temperature range liquid level controllers required?
    Ans.:

    It is -5°C to 50°C.

  7. How could I know whether the relay is in on or off condition?
    Ans.:

    The Out LED on the front panel lights when the relay is ON position

Frequently Asked Questions
MULTIFUNCTIONAL TIME RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set time as per the requirement
  2. What are ENTES multifunctional time relays?
    Ans.:

    Multifunctional time relays offer flexible solutions that are tailored to objective with trigger-controlled rich sub-functions in addition to their main functions.

  3. What is the main purpose of using astronomic time relays?
    Ans.:

    MCB-100/101 has 7 different functions with wide adjustable time ranges. The main application area is the industrial and automation control systems. The device has two dry contacts for START and STOP inputs.

  4. Does multifunctional time relays have star delta timer?
    Ans.:

    Yes. They have internal star delta timer.

  5. Which highlighted features do multifunctional relays has?
    Ans.:
    1. 7 different functions
    2. 0.1-9999 seconds/minutes time range
    3. 2 relay outputs
    4. Start-Stop dry contact inputs
    5. Memorizing remaining time of function in case of a power outage
    6. Custom design LCD with green backlight
  6. What ambient temperature range multifunctional relays required?
    Ans.:

    It is 5°C to 55°C.

Frequently Asked Questions
ENTES MULTIMETERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect voltage and current measurement inputs to the respective terminals
    3. Connect communication cable to the respective terminals
    4. Connect relay outputs to the respective terminals
    5. Programme as per the manual
  2. What are ENTES multi meters?
    Ans.:

    ENTES Multi meters are designed to measure the electrical parameters such as current, voltage, frequency and power factor in industrial plants.

  3. What is the operating voltage and frequency range of EMM series multi meters?
    Ans.:

    Operating voltage range is 100 -270 V AC and Operating Frequency range is 50-60 Hz

  4. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between - 20 to +70°C
    2. Storage temperature -30 to +80°C
    3. Maximum ambient humidity 95% RH
  5. Is alarm setting available in EMM series?
    Ans.:

    Yes. Custom alarm settings are available in EMM series multi meters

  6. Which parameters can be set for alarm in EMM series?
    Ans.:

    We can set alarm by selecting Voltage, Current, Current demand, Frequency, Cos Phi, Total work time and work time.

  7. Security settings are provided in EMM series?
    Ans.:

    Yes. Password protection is provided, we can activate and deactivate password by entering safety settings

  8. Does EMM series models support communication?
    Ans.:

    Yes. They all support MOD BUS RTU RS-485 communication protocol.

  9. How much baud rate is selectable in EMM series communication?
    Ans.:

    We can select up to 2400, 4800, 9600, 19200, 38400, 57600, 115200 or 256000 bps.

  10. 1How much relay outputs multi meter EPM-04 / 04C / 04CS have?
    Ans.:

    They have two relay outputs.

  11. 1Is current transformer ratio is programmable in EPM-06 series?
    Ans.:

    Yes. It is programmable

  12. 1What general features does voltage monitoring EVM-05C series has?
    Ans.:
    1. EVM - 05C is designed to measure the phase-phase voltage, phase neutral voltage and the frequency of system.
    2. The device contains the features of Instantaneous trip, Latch function and adjustable delay time.
    3. It contains 2 output relays to warn the user against under/over voltage and frequency

Frequently Asked Questions
ENTES OVER CURRENT PROTECTION RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set values as per the requirement
  2. What are ENTES over current protection relays?
    Ans.:

    New generation, microprocessor based CKR series over current relays combine both inverse time and independent time relays in one unit.

  3. What is the main purpose of using CKR series relay?
    Ans.:

    These relays are used for the purpose of protecting the equipments such as transformers, motors, generators, and power lines in energy distribution systems against short circuits and grounding faults

  4. Does CKR series have internal memory?
    Ans.:

    Yes. It can store the fault information.

  5. What is auxiliary supply range CKR series models have?
    Ans.:

    It has 24VDC, 110VDC, 220VAC-240VAC range for different models

  6. What ambient temperature range CKR series relays required?
    Ans.:

    It is -5°C to +50°C.

Frequently Asked Questions
ENTES POWER FACTOR CONTROLLER

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply to v1, v2, v3, N as per the requirements
    2. Connect current transformers to s1 and s2 pairs.
    3. Connect one phase to c1.
    4. And connect capacitor banks to R1, R2….R12 respectively
    5. Before disconnecting the secondary of the external current transformer from the equipment, make sure that the current transformer is short circuited.
  2. Which ENTES power factor controller models have inbuilt 3 phase capacitors?
    Ans.:

    All models in power factor controller have inbuilt 3 phase capacitors.

  3. What is the main working features RG-T models have?
    Ans.:

    Power Factor Controllers are used for measurement and control of power factor control units for central reactive power compensation. The Power Factor measured by RG-T is compared with the set point values and in order to provide necessary compensation, Power Factor Controller switches capacitor banks ON and OFF automatically.

  4. What additional parameters rather than power factor R-GT shows?
    Ans.:

    In addition to displaying the systems power factor in Automatic Operating Mode, RG-T displays the RMS values of Voltage(V) and Current (I), Active Power (W), Reactive Power (VAR) and Apparent Power (VA) of measuring phase.

  5. Do over voltage protection function provided in R-GT models and how it works?
    Ans.:

    Yes. This is a selectable function, either O OF (Over Voltage Protection Off) or an Over Voltage value between 240-275V can be selected. If "Over Voltage" occurs when Over Voltage Value is selected (between 240-275V), then all the capacitor steps switch off, OVER VOLTAGE LED turns on and alarm relay activates. And if RG-T is on Manual Mode, it switches to Automatic Mode.

  6. Do R-GT models sense energy flow??
    Ans.:

    Yes. RG-T has four quadrant measuring and operation feature. So, it is able to sense the energy flow direction and to correct itself for right compensation.

  7. What precaution should I take while connecting the current transformer to the controller?
    Ans.:

    A separate CT must be always used for the Power Factor Controller. The wires connecting CT to Power Factor Controller must be as short as possible and the diameter of wire not less than 1.5 mm. Since the current information is supplied by CT, the right selection of CT is very important. The secondary current of the selected CT must comply with the following current limits for correct measuring. Minimum=0.05 MA, Maximum=5.5 A (Minimum C/k Ratio must be 0.02)

  8. What maximum number of steps R-GT models supports?
    Ans.:

    It has maximum steps up to 12 in model RG12T

  9. On which type of errors alarm relay gets activated in R-GT?
    Ans.: IT TRIPS ON FOLLOWING ERRORS
    1. Over Voltage error
    2. Insufficient Compensation error
    3. Over Compensation error

Frequently Asked Questions
ENTES PHASE FAILURE RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set values as per the requirement
  2. What are ENTES Phase Failure Relays?
    Ans.:

    Phase failure relays are designed to monitor 3-phase motors against overheating and damage caused by phase faults and voltage unbalance at industrial plants.

  3. What is PTC protection?
    Ans.:

    When the coil temperature in motors exceeds limit temperature of PTC. The output relay switches OFF immediately.

  4. What is voltage unbalanced function?
    Ans.:

    When the neutral-phase voltage unbalance is greater than 20% (fixed),The output relay is switched off within 0.2 seconds.

  5. What environmental usage phase failure relays has?
    Ans.:

    Temperature range is between -5°C to +50°C

Frequently Asked Questions
ENTES PHASE SEQUENCE RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set values as per the requirement
  2. What are ENTES phase sequence relays?
    Ans.:

    FR-02 is an electronic device monitoring the L1, L2, L3 phase sequence. If the input L1, L2 and L3 phases are in correct sequence, the LED on the front panel remains ON and the internal relay is energized. When the phase sequence is wrong, the LED turns OFF and output relay is inactive.

  3. What should be done when FR-02 indicates fault?
    Ans.:

    In this case, interchanging two phases will be sufficient to solve the problem.

  4. Where we can use FR-02 relays?
    Ans.:

    FR-02 phase sequence device is used, are vessel pumping systems, air compressors, and elevators.

  5. What environmental usage phase sequence relays has?
    Ans.:

    Temperature range is between -5°C to 50°C

Frequently Asked Questions
ENTES POWER SUPPLIES

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect current measurement inputs to the respective terminals
    3. Connect external controllers to the respective terminals if you want to use
    4. Programme as per the manual
  2. What are ENTES power factor meters?
    Ans.:

    ENTES power factor meters measure the power factor values of the networks in industrial plants.

  3. What are ECR-3 models and their main features?
    Ans.:

    ECR-3 meter is microprocessor based and developed to measure the power factor (the displacement power factor) of the system. ECR-3 indicates whether the load is inductive or capacitive. If there is a negative sign then the load is capacitive and if there is no sign then it is inductive. ECR-3 can also be used with RG-A/ RG-E series Power Factor Controllers, in order to indicate the power factor.

  4. Can we use ECR-3 with RG-A \ RG-E series controllers?
    Ans.:

    Yes. It can be used with RG-A \ RG-E.

  5. How can we use ECR-3 with RG-A \ RG-E Series controllers?
    Ans.:

    The characteristic conversion ratio of the current transformer is 5A. If meter shows capacitive loads, even though the loads connected to the lines are mostly inductive (motors, transformers .etc.) the connections for the current transformer should be interchanged. In order for ECR-3 to measure accurately, the current flowing through the current transformer should be at least 2% of the nominal current.

  6. What are the usage environmental requirements?
    Ans.:

    Operating temperature is between - 5 to +50°C

Frequently Asked Questions
ENTES POWER SUPPLIES

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set values as per the requirement
  2. What are ENTES power supplies?
    Ans.:

    PS Series power supplies provide safe and accurate DC outputs at various power ranges, increasing the productivity of your automation solutions with wide voltage ranges and adjustable output voltages.

  3. What are the applications they have?
    Ans.:

    PS-361 is a 36W high efficiency SMPS which was designed according to DIN case standards for easy installation in panels. It can be safely used in industrial and building automation applications.

  4. What is the input voltage and frequency range?
    Ans.:

    They have Wide input voltage range 85-265V AC (50-60 Hz) / 110-350V DC

  5. What environmental usage power supplies have?
    Ans.:

    Temperature range is between -20°C to +55°C Humidity is less than 95%

  6. What are the highlighted features ENTES Power supplies have?
    Ans.:
    1. 36 W output power (3A DC @12V DC)
    2. Status notification LED (yellow)
    3. High efficiency operation at >85%
    4. Low/High input voltage protection
    5. Short circuit, overload protection
    6. Thermal protection
    7. Class 2 device, no earth connection is necessary

Frequently Asked Questions
ENTES PULSE CONCENTRATOR

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect communication cables
    3. Connect all the inputs and outputs
  2. What are ENTES pulse concentrators?
    Ans.:

    Pulse concentrators are microprocessor based devices, designed to collect data from 12 different meters regarding 8 different tariffs and export them via communication skill.

  3. Do they have internal memory and clock?
    Ans.:

    Yes. They have internal clock and flash memory.

  4. Does it have password protection?
    Ans.:

    Yes. For preventing changes by unauthorized users

  5. What highlighted features does ENTES pulse concentrator have?
    Ans.:
    1. Total counter indexes of 12 pulse inputs with tariff and unit information, date and Time information and alarm states can be displayed on the 2x12 characters LCD screen automatically with intervals of 5 seconds or manually by pressing up and down buttons.
    2. Enabling the backlight for 20 seconds by pressing any button to provide easy reading on the screen,
    3. Data communication with a PC via RS-485 output
    4. Storing the contents of each pulse input with tariff information in 1-60 minutes intervals on the 2 MB permanent memory of the device with date and time information
  6. What are environmental usage requirements?
    Ans.:
    1. Ambient Temperature is between -25 to +55 °C
    2. Storage Temperature is between -25 to +70 °C
    3. Humidity up to 95 %

Frequently Asked Questions
ENTES POWER AND ENERGY METERS

  1. Can you explain basic installation process?
    Ans.:
    1. Please, apply 85-300 vac/dc supply connection through a1, a2 terminals.
    2. Please, apply 3-phase voltage connection through n, l1, l2, l3 terminals
    3. An external current transformer must be used for the 3-phase system connection to k1, l1, k 2, l2, k3, l3 terminals where the current up to 5a can be input.
    4. And connect the digital inputs and outputs as per the selected model type
    5. Programme as per the manual
  2. Which parameters ENTES power and energy meters mainly measures?
    Ans.:

    ENTES power and energy meters are designed to measure the active, reactive and apparent power values and active and reactive energy values of a network.

  3. What is maximum demand and demand in EPR-03 universal power meter
    Ans.:

    Maximum demand shows the maximum value of the power. If the maximum value exceeds the previous maximum value, the new value is recorded as maximum demand. Demand is average of power for demand time (1-60 min). During demand time, if average of power exceeds the previous demand value, the new average value is recorded as demand.

  4. How can we clear demand values of EPR-03?
    Ans.:

    Demand values can be cleared by pressing the up and down Buttons at the same time

  5. Do EPR-04 model support communication?
    Ans.:

    Yes. They support MOD BUS RTU RS-485 communication protocol.

  6. Which parameters ES-32L mainly measures?
    Ans.:

    ES-32L measures the active watt hour consumption directly and error free in single phase systems and it shows the total watt hour consumption.

  7. Does ES-32L have support communication?
    Ans.:

    No. For communication you have to choose ES-32LS model.

  8. Which communication protocol ES-32LS have?
    Ans.:

    It supports RS-485 MOD BUS RTU communication protocol

  9. What operating frequency does watt hour meters have?
    Ans.:

    They have 50/60 HZ operating frequency range.

  10. Which models do ENTES energy power meters have?
    Ans.:
    1. EPR-03-96.
    2. EPR-04-96
    3. EPR-04-DIN
    4. EPR-04S-96
    5. EPR-04S-DIN
    6. EPR-04S-DIN-CT25
    7. ES-80L
    8. ES-32L (MID)
    9. ES-32LS
    10. ES-32LS (MID
  11. What are some common applications ES-32L has?
    Ans.:
    1. Factories
    2. Shopping malls
    3. Airports
    4. Stores
    5. Building complexes
    6. Hotels
    7. Marinas
    8. Railway stations
    9. Hospitals

Frequently Asked Questions
ENTES REACTORS

  1. Can you explain basic installation process?
    Ans.:
    1. Select the single phase or three phase model as per the requirement
    2. Connect input and outputs to the respective terminals
    3. Read the manual for other details
  2. What are line reactors?
    Ans.:

    A line reactor is essentially an inductor—a coil of wire that forms a magnetic field as current flows through it. The magnetic field limits the rate of rise of the current, which reduces harmonics and helps avoid unnecessary tripping of the drive.

  3. Where do ENTES ENT.SGR SERIES reactors get used?
    Ans.:

    ENTES ENT.SGR Series line reactors are used between the network and motor drives. Connecting these reactors serially between the network and motor drives provides many benefits to the system.

  4. What are shunt reactors and its applications?
    Ans.:

    Shunt reactors are designed to compensate the capacitive power used by long underground power lines, ups, computers, electronic ballast, and energy saving lamps.

  5. What is the difference between shunt reactor and series reactor?
    Ans.:

    Key points in difference between shunt reactor and series reactor: shunt reactor limits the over voltage but series reactor limits the high current. Shunt reactor uses as reactive power absorber, series reactor uses as current limiter and increase the impedance of the circuit.

  6. What are the main advantages do ENTES line reactors have?
    Ans.:
    1. Limits the peaks that occur in the current
    2. Prevents drive vibrations
    3. Limits harmonic currents
    4. Protects the motor drive from high voltages
    5. Prolongs the system’s operating life
  7. What highlighted features do ENTES line reactors have?
    Ans.:
    1. Iron core with high magnetic permeability
    2. Voltage drop UK=4%. UK=2% type reactors can be manufactured on demand
    3. Impregnated with varnish under vacuum to ensure silent, efficient and moisture-free operation
    4. CE marked and complies with EN 61558-2-20 standard

Frequently Asked Questions
ENTES SHUNT REACTORS

  1. Can you explain basic installation process?
    Ans.:
    1. Select the single phase or three phase model as per the requirement
    2. Connect input and outputs to the respective terminals
    3. Read the manual for other details
  2. What are shunt reactors and its applications?
    Ans.:

    Shunt reactors are designed to compensate the capacitive power used by long underground power lines, ups, computers, electronic ballast, and energy saving lamps.

  3. What is the difference between shunt reactor and series reactor?
    Ans.:

    Key points in difference between shunt reactor and series reactor: shunt reactor limits the over voltage but series reactor limits the high current. Shunt reactor uses as reactive power absorber, series reactor uses as current limiter and increase the impedance of the circuit.

  4. Does ENTES shunt reactors have thermal overload protection?
    Ans.:

    Yes. They have thermal overload protection

  5. What are the salient features does ENTES shunt reactor have?
    Ans.:
    1. Single or three-phase, highly conductive design with air gap
    2. F isolation class insulation material on the windings resistant to 155 c high quality copper or aluminium windings (copper coated terminal on aluminium windings)
    3. Custom designs to meet customer specifications
    4. Vacuum impregnated varnish method that improves efficiency by reducing heat losses, provides protection against humidity

Frequently Asked Questions
ENTES THERMISTOR RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set time as per the requirement
  2. What are ENTES THERMISTOR relays?
    Ans.:

    THERMISTOR Relay is designed to protect motors with PTC. If coil temperatures in the motor exceed the value of PTC temperature limit, the output relay is automatically switched OFF.

  3. What environmental usage THERMISTOR relay has?
    Ans.:

    Temperature range is between -5°C to 50°C .

  4. What supply voltage and frequency range THERMISTOR relay required?
    Ans.:

    Required voltage is 230 VAC and frequency 50\60 Hz.

  5. Does THERMISTOR relay have LED indications?
    Ans.:

    Yes. LED normally remains ON and get OFF when fault occurs

Frequently Asked Questions
ENTES TIME RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set time as per the requirement
  2. What are ENTES time relays?
    Ans.:

    Time Relays are designed to enable control in desired time intervals and have various functions.

  3. Which functions ENTES ERT/ERTC-01 model has?
    Ans.:

    It has four different functions which are on delay, off delay, down timer, flasher mode

  4. What time setting range ERT/ERTC-01 has to control outputs?
    Ans.:

    Output relay is controlled by set value that can be set between 1.0 sec. to 100 hours

  5. Can we store set and programmed values in ERT/ERTC-01?
    Ans.:

    Yes. Programmed function and set values are recorded at non-volatile memory.

  6. What is on delay function in timer?
    Ans.:

    In the On Delay mode, after the device is energized, the timer starts to count up and when it reaches the adjusted time, the relay is energized.

  7. What is off delay function in timer?
    Ans.:

    In the Off Delay mode, after the device is energised. And with start input, the relay is energized and becomes de-energized at the end of the time adjusted by the user.

  8. What is down timer mode and how it works?
    Ans.:

    In the Down Timer mode, after the device is energized, the down counter starts to count down from the time adjusted by the user and when it reaches zero, the relay is energized.

  9. What is flash mode and how it works?
    Ans.:

    In the Flasher mode, after the device is energized, when TOFF time ends the relay is energized and becomes de-energized at the end of the TON delay (FLSHER).The starting mode of the flasher mode can be chosen with STOFF or STON. In the STOFF mode flasher starts with TOFF and energized after the TOFF value, then continues to TON mode. In the STON mode flasher starts with TON and de-energized after the TON value, then continues to TOFF mode.

  10. What is auxiliary supply range and frequency range time relays have?
    Ans.:

    It is 230 /120 VAC and frequency range is 50/60 Hz

  11. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between -5 to +50°C
    2. Storage temperature -25 to +70°C

Frequently Asked Questions
ENTES TRANSDUCERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect current measurement inputs to the respective terminals
    3. Programme as per the manual
  2. What are ENTES current transducers?
    Ans.:

    ENTES Transducers convert electrical signal to the Ana log signal. They are used in control and display equipments. TA-111/2 current transducer and TV-111 voltage transducers are self-powered. Supply voltage is not applied.

  3. What is the operating principle ENTES transducers have?
    Ans.:

    Transformer connected with input circuit of TA-111/2 and TV-111 transducer provides galvanic isolation between input signal and output signal. Input signal is rectified by rectifier and filtered by filter unity in voltage transducer, by op-amp in current transducer.

  4. What range of output signal does it produce?
    Ans.:

    It is between 0-20mA DC

  5. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 5 to +50°C
    2. Storage temperature -20 to +70°C
    3. Maximum ambient humidity less than 75% RH

Frequently Asked Questions
VOLTAE MONITORING RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect outputs to the respective terminals
    3. Set values as per the requirement
  2. What are ENTES voltage monitoring relays?
    Ans.:

    Voltage Monitoring Relays are designed to protect single or three-phase systems against voltage changes and phase sequence faults.

  3. What is the main purpose of using voltage monitoring relays?
    Ans.:

    MCB-100/101 has 7 different functions with wide adjustable time ranges. The main application area is the industrial and automation control systems. The device has two dry contacts for START and STOP inputs.

  4. What are environmental usage voltage monitoring relay has?
    Ans.:

    It is -5°C to 55°C and relative humidity is less than 90%.

  5. What protection function voltage monitoring relays have?
    Ans.:
      It has following protection function:
    1. Over Voltage Monitoring
    2. Under Voltage Monitoring
    3. Phase Sequence Protection

Frequently Asked Questions
ENTES VOLTMETERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect auxiliary supply
    2. Connect current measurement inputs to the respective terminals
    3. Programme as per the manual
  2. What are ENTES voltmeters?
    Ans.:

    ENTES Voltmeters measure the voltage values of networks in industrial plants.

  3. What are EVM-3C models and their main features?
    Ans.:

    It is Set pointed Voltmeter. EVM-3C has the same functions of the EVM-3. In addition to these functions, a high voltage level and "time delay" can be set. When the measured voltage is over the high set point value, the output relay is activated at the end of the adjusted time delay, generates an alarm signal and display starts blinking.

  4. What are EVM-3 models and their main features?
    Ans.:

    It is voltmeter. EVM-3 is designed for accurate measuring of the AC RMS voltage and for saving the minimum and maximum values of the measured voltages. Minimum and maximum values remain stored in the memory when the power supply is off. This stored value can get read when the power is on. Although EVM-3 is mainly used for electrical panels, this device can also be used with any application in which accurate voltage readings should be done between 10-600V.

  5. Does EPM series models have instant tripping function?
    Ans.:

    Yes. It has. If the AC current value is over the 1.5 times of setting value or it is under the 0.5 times of setting value, the output relay is switched on without any delay time. This function is user-selectable.

  6. What are the usage environmental requirements?
    Ans.:

    Operating temperature is between - 5 to +50°C

  7. Which voltage does voltmeter EVM-15 measures?
    Ans.:

    EVM-15 is designed to measure the voltage of the single phase systems.

  8. Is there password protection provided in EVM-15?
    Ans.:

    Yes. A password can be arranged from ‘CODE’ menu in order to prevent change of the setting by unauthorized person.

  9. Which voltage does voltmeter EVM-35 measures?
    Ans.:

    EVM-15 is designed to measure the phase-phase voltage and phase neutral voltage of the systems.

  10. Do DC voltmeter models support communication?
    Ans.:

    Yes. They support communication MOD BUS RTU protocol.

Frequently Asked Questions
SELEC APFC

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply to v1, v2, v3, N as per the requirements
    2. Connect current transformers to s1 and s2 pairs..
    3. Connect one phase to c1.
    4. And connect capacitor banks to R1, R2….R12 respectively
    5. Before disconnecting the secondary of the external current transformer from the equipment, make sure that the current transformer is short circuited.
  2. What type of inputs can I connect to APFC148?
    Ans.:
    1. You can connect:
    2. 3 Ø 4 wire, 3 Ø 3 wire, 1 Ø 2 wire, 2 Ø 2 wire
  3. How many models are provided by SELEC?
    Ans.:

    Three models are provided which are classified according to their display:

    1. APFC148 with LCD display
    2. APFC147 and APFC347 with LED display
  4. Does this APFC148 models have display?
    Ans.:

      Yes. It has Liquid crystal display with dual colour backlight three line, four digits to show electrical parameters.

  5. Do they have alarm? And which alarm modes they supports?
    Ans.:

      Yes. Over Voltage, Under Voltage, Over Compensate, Under Compensate, CT Polarity error, No Voltage, THDI, Over Temperature.

  6. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 55 °C
    2. Storage temperature -20 to 60 ºC
    3. Humidity (Non Condensing) 0% to 95% RH
  7. What frequency range does it support?
    Ans.:

      45-65 Hz

  8. How many relay outputs does it have?
    Ans.:

      12 Relay (Additional 2 for FAN and Alarm)

  9. How can I enter into the test mode?
    Ans.:

      Press escape (esc) & up arrow buttons for 3sec. to enter in Test Mode. Test mode checks all the relays present in product sequentially. Turn ON DI manually when the DI CHECK page is displayed. DI status will be displayed & returns to online page.

  10. Which are the basic application areas of APFC148?
    Ans.:
    1. Textile Industries
    2. Printing Industries
    3. Hospitals
    4. Food Processing Industries
    5. Automobile Industries
    6. CNC Machines

Frequently Asked Questions
SELEC COUNTERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 240 AC or 24DC.
    2. Connect sensor supply if it is not in build .
    3. Connect sensors as per selection RTD or Ana log .
    4. Connect communication wires to the respective terminals.
    5. Programme as per given in the manual.
  2. Which application does SELEC counters support?
    Ans.:
    1. Production Counter Application
    2. Packaging Machinery
    3. Plastic Processing Machinery
    4. Stone Processing Machinery
    5. Rubber Processing Industry
    6. Printing Industry
    7. Pharmaceutical Industry
    8. Food Industry
  3. SELEC Counters divided into how many types?
    Ans.:

    They are divided into following types:

    1. Count TOTALISER
    2. Count programmable \ preset
    3. Rate indicators
  4. Which type of display available in count TOTALISER?
    Ans.:

    Two models XC900A and XC410A are available with LED screens. And one LXC900A with LCD screen.

  5. What is auxiliary supply range for count TOTALISERS?
    Ans.:

    The input voltage for XC410A is 230V AC, and for XC900A is 90 to 270 V AC/DC And LXC900A is battery operated

  6. What are functional modes XC2200 / XC3200 and XC1200 have?
    Ans.:

    ON delay / Interval / Auto reset / Time pulse repeat

  7. What are functional modes XTC5400 have?
    Ans.:

    It has Timer: ON delay, Interval, Cyclic ON first, Cyclic OFF first, Batch Counter: ON delay, Interval, Auto reset, Time pulse repeat, Batch

  8. Which preset counter models have dual set point settings?
    Ans.:

    Except XC22B all preset counter models have dual set point setting.

  9. Which communication protocol does XC2200 / XC3200 supports?
    Ans.:

    It supports RS485 Communication with MODBUS RTU Protocol

  10. Do XTC5400 support batch counting?
    Ans.:

    Yes. It supports batch counting.

  11. Which features does XC22B have?
    Ans.:
    1. Preset Counter
    2. Thumbwheel Setting
    3. Auto Reset
    4. Battery Backup
  12. How much RPM does RC5100A measures?
    Ans.:

    It measures up to 9999 RPM

  13. Does RC5100A have in build sensor supply?
    Ans.:

    Yes. It has 12V inbuilt sensor supply

  14. How much battery life does LXC900A have?
    Ans.:

    It has 8 years long battery life.

  15. How much memory retention do XC10D and XC410A have?
    Ans.:

    It has 10 years long memory retention time.

  16. Does XC22B support auto reset?
    Ans.:

    Yes. It has in build auto reset function.

  17. Which reset modes are supported by XTC5400?
    Ans.:

    It supports:

    1. On power interruption rest
    2. Front panel reset
    3. Terminal reset

Frequently Asked Questions
SELEC CURRENT PROTECTION RELAYS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 230V AC / 415V AC / 110V AC
    2. Programme as per given in the manual
    3. Mount as per selected model type
  2. What are the applications of SELEC earth leakage relay?
    Ans.:
    1. Generator Panels
    2. Synchronizing Control Panels
    3. Air Circuit Break
  3. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C
    2. Storage temperature -20 to 70 ºc
    3. Humidity (Non Condensing) 95% RH
  4. What does current protection relay monitors?
    Ans.:

    They can monitor under Current, Over Current & Current Asymmetry.

  5. What time settings current protection relay has?
    Ans.:
    1. Power ON delay
    2. Trip time delay
    3. Recovery time delay
  6. What kind of reset current protection relay has?
    Ans.:

    It supports auto and manual both type of resets

  7. Which kind of electrical connections current protection relay supports?
    Ans.:

    It supports 1ø - 2 wire, 3ø - 3 wire, 3ø - 4 wire electrical connections

  8. Is CT parameters are selectable in current protection relay?
    Ans.:

    Yes. They are selectable.

  9. How much current hysteresis current protection relay has?
    Ans.:

    It has 0.1 - 99.9A current hysteresis

  10. How much current hysteresis current protection relay has?
    Ans.:

    It has 0.1 - 99.9A current hysteresis and is adjustable

  11. Alarm relay is provided into current protection relay?
    Ans.:

    Yes. One Alarm Relay with NC or NO Operation Selectable

Frequently Asked Questions
SELEC EARTH LEAKAGE RELAY

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 230V AC / 415V AC
    2. Connect outputs to the respective terminals
    3. programme as per given in the manual
    4. Mount as per selected model type
  2. What are the applications of SELEC earth leakage relay?
    Ans.:
    1. Feeders, Motors, Transformers
    2. Oil Refineries, Cement Plant, Steel Plant
    3. Chemical Plant, Pulp Industries
    4. Mining & Control Engineering
  3. SELEC earth leakage relays divided into which types?
    Ans.:

    They are divided into following types:

    1. Ana log earth leakage relay
    2. Digital earth leakage relay
    3. earth leakage relay with inbuilt CBCT
  4. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C
    2. Storage temperature 0 to 75 ºc
    3. Humidity (Non Condensing) 95% RH
  5. Which LED indications are provided on ELRA2M?
    Ans.:

    Power ON, Measured Leakage Current indications are provided.

  6. What can ELRA2M monitor?
    Ans.:

    It can monitor True RMS Earth Leakage Current (UPTO 30A) in 1Ø - 2 Wire, 3Ø - 3 Wire, 3Ø - 4 Wire systems

  7. Is Leakage Current & Time delay adjustable in ELRA2M?
    Ans.:
  8. Can ELRA2M detect CBCT?
    Ans.:

    Yes. It has CBCT Open or Short Circuit Detection

  9. What time settings provided in 900ELR-2?
    Ans.:

    Power ON delay, Trip time delay and Recovery timer delay are provided in the 900ELR-2

  10. Which type of resets provided in 900ELR-2?
    Ans.:

    Auto and manual resets are provided in the 900ELR-2.

  11. Does 900ELR-2 has alarm relays provided?
    Ans.:

    Yes. Two Separate Alarm Relays with NO or NC Operation Selectable are provided

  12. Is 900ELR-2 has hysteresis?
    Ans.:

    Yes. It Has Adjustable Switching Hysteresis 5 To 40%

  13. Does ELCTR have memory and how it gets reset?
    Ans.:

      Yes. It has Storage of leakage fault & reset with reset push button

Frequently Asked Questions
SELEC LINE MONITORING

  1. What applications phase sequence relay has?
    Ans.:
    1. Escalators, Elevators
    2. (2) Hoist
    3. Connect downloading cable from plc to pc it will act as a communication cable as well.
    4. DG set Panel
    5. Air-Conditioning and Refrigeration Equipment
  2. What settings should I do while creating a project?
    Ans.:

      After selecting, create new project option you have to do following settings:

    1. Enter the project name.
    2. Create location to save project file.
    3. Select the type of plc.
    4. Check communication settings and do the change if required.
  3. What salient features SELPRO programming software has?
    Ans.:

    It is a Windows based user friendly software for ladder logic programming. Including function blocks Timer On delay, Timer Off delay, Pulse Timer, Special Timer, Up/Down Counter etc. which complete programming task in a simple way.

  4. What kind of plc do you have?
    Ans.:

      SELEC plc series mainly divided in three types:

    1. Flexible IO solution
    2. Compact series/li>
    3. Fixed IO configuration
  5. How much input should I give to on plc?
    Ans.:

      SELEC plc’s have both models some of them can be operated on 24V supply and some of them can be operated on 240V power supply.

  6. Which communication protocols are supported by compact series plc?
    Ans.:

      RS – 485 2 wire.

  7. What are the plc usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 60 °C
    2. Storage temperature -20 to 70 ºc
    3. Humidity (Non Condensing) 10% to 95% RH
  8. What are the basic applications of compact series plc?
    Ans.:
    1. Constant Flow Control
    2. Ultrasonic Cleaning Machine
    3. Laminar Flow Control
    4. Nozzle Assembly Machine
    5. Humidity Chamber
  9. Can we increase required number of digital inputs and outputs?
    Ans.:

      Yes. Number of inputs and outputs of the compact plc models such as DIGIX-2, DIGIX-4, DIGIX- 1- 1- 1 can be extended by connecting external expansion modules.

  10. Which are the basic plc modules and can we extend their required number of inputs and outputs?
    Ans.:

      Some of the basic modules of compact series plc are Twix-1, twix-2, twix-3. But their number of inputs and outputs cannot be increased.

  11. What is supply voltage and frequency range?
    Ans.:

      180-270 VAC, 50-60 Hz

  12. What are the highlighted features?
    Ans.:
    1. Compact PLC with built in HMI.
    2. 2 line 8 Character LCD.
    3. Real Time Clock.
    4. Windows based user friendly software for ladder programming & HMI configuration.
    5. RS485 based communication with MODBUS protocol.

Frequently Asked Questions
SELEC METERS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 230V AC / 415V AC / 110V A
    2. Connect outputs to the respective terminals.
    3. Programme as per given in the manual
    4. Mount as per selected model type
  2. What are the applications of SELEC multifunction meters?
    Ans.:
    1. Control Panels
    2. Motor Control Centres
    3. Gen set Panels
    4. Distribution Systems
    5. Process control & SCADA
    6. Test Bench
  3. SELEC digital meters divided into which types?
    Ans.:

    They are divided into following types:

    1. Multifunction meters
    2. Energy meters
    3. Volt ampere frequency meters
    4. Digital voltmeters
    5. Digital ammeters
    6. Power factor meters
    7. Digital frequency meters
  4. What are sub types of Multifunction meters?
    Ans.:
    1. LCD multifunction meters
    2. LED multifunction meters
    3. Din rail multifunction meters
    4. Plug n wire meters
  5. What are sub types of energy meters, volt ampere frequency meters, digital voltmeters and digital ammeters?
    Ans.:
    1. LCD type
    2. LED type

Frequently Asked Questions
SELEC MOTOR PROTECTION RELAY

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 230V AC / 415V AC
    2. Connect outputs to the respective terminals
    3. Set parameters as per given in the manual
    4. Mount as per selected model type
  2. Which type of electrical connection it supports and at what frequency?
    Ans.:

      3Ø - 3 Wire Input at 45-65 Hz frequency:

  3. What are the applications of SELEC motor protection relay?
    Ans.:
    1. Control Panels
    2. Feeder / Motor, Generator
    3. Transformer
    4. Electrical Distribution
  4. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C
    2. Storage temperature -20 to 75 ºc
    3. Humidity (Non Condensing) 95% RH
  5. What can MPR-3M monitor?
    Ans.:

      It can monitor Overload Current, Phase Asymmetry, Phase Failure, Phase Sequence and Under Current.

  6. Which LED indications are provided on MPR-3M?
    Ans.:

      Power ON and Trip Relay LED indications are provided

  7. Which type of resets provided in MPR-3M?
    Ans.:

      Auto, manual and trip resets are provided in the MPR-3M.

  8. What ranges it has for CTs?
    Ans.:

      It supports 10A, 40A and 80A

  9. Which parameters Are User selectable in MPR-3M?
    Ans.:

      It has User Selectable Trip Time Curve and Motor Current Ratings

  10. How much trip time MPR-3M has?
    Ans.:

      It takes 5 sec. for all trips.

Frequently Asked Questions
SELEC PLC

  1. Can you explain basic installation process?
    Ans.:
    1. Give 240V or 24V power supply independently as per selected model.
    2. Download the SELPRO software from official SELEC website
    3. Connect downloading cable from plc to pc it will act as a communication cable as well.
    4. By creating new project you can configure all communication and necessary settings.
    5. After communication you can download the programme.
  2. What settings should I do while creating a project?
    Ans.:

      After selecting, create new project option you have to do following settings:

    1. Enter the project name.
    2. Create location to save project file.
    3. Select the type of plc.
    4. Check communication settings and do the change if required.
  3. What salient features SELPRO programming software has?
    Ans.:

    It is a Windows based user friendly software for ladder logic programming. Including function blocks Timer On delay, Timer Off delay, Pulse Timer, Special Timer, Up/Down Counter etc. which complete programming task in a simple way.

  4. What kind of plc do you have?
    Ans.:

      SELEC plc series mainly divided in three types:

    1. Flexible IO solution
    2. Compact series/li>
    3. Fixed IO configuration
  5. How much input should I give to on plc?
    Ans.:

      SELEC plc’s have both models some of them can be operated on 24V supply and some of them can be operated on 240V power supply.

  6. Which communication protocols are supported by compact series plc?
    Ans.:

      RS – 485 2 wire.

  7. What are the plc usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 60 °C
    2. Storage temperature -20 to 70 ºc
    3. Humidity (Non Condensing) 10% to 95% RH
  8. What are the basic applications of compact series plc?
    Ans.:
    1. Constant Flow Control
    2. Ultrasonic Cleaning Machine
    3. Laminar Flow Control
    4. Nozzle Assembly Machine
    5. Humidity Chamber
  9. Can we increase required number of digital inputs and outputs?
    Ans.:

      Yes. Number of inputs and outputs of the compact plc models such as DIGIX-2, DIGIX-4, DIGIX- 1- 1- 1 can be extended by connecting external expansion modules.

  10. Which are the basic plc modules and can we extend their required number of inputs and outputs?
    Ans.:

      Some of the basic modules of compact series plc are Twix-1, twix-2, twix-3. But their number of inputs and outputs cannot be increased.

  11. What is supply voltage and frequency range?
    Ans.:

      180-270 VAC, 50-60 Hz

  12. What are the highlighted features?
    Ans.:
    1. Compact PLC with built in HMI.
    2. 2 line 8 Character LCD.
    3. Real Time Clock.
    4. Windows based user friendly software for ladder programming & HMI configuration.
    5. RS485 based communication with MODBUS protocol.

Frequently Asked Questions
SELEC PROCESS INDICATORS

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 240 AC or 24DC
    2. Connect sensor supply if PIC152A-VI model is selected.
    3. Connect sensors as per selection RTD or Ana log
    4. Connect communication wires to the respective terminals
    5. Programme as per the manual
  2. Process indicators divided into how many types?
    Ans.:
    1. Process indicators with temperature input
    2. Process indicators with voltage/current input
    3. Process indicators with universal input
    4. Process indicators with alarm, retransmission and communication
  3. What is auxiliary supply range for process indicators?
    Ans.:

    The input voltage range for process indicators is 230V AC, with frequency 50/60 Hz

  4. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C
    2. Storage temperature -20 to 75 ºc
    3. Humidity (Non Condensing) 0% to 95% RH
  5. What is the auxiliary supply range for model PIC101N?
    Ans.:

      Yes. Over Voltage, Under Voltage, Over Compensate, Under Compensate, CT Polarity error, No Voltage, THDI, Over Temperature.

  6. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 55 °C
    2. Storage temperature -20 to 60 ºC
    3. Humidity (Non Condensing) 0% to 95% RH
  7. What frequency range does it support?
    Ans.:

      90 to 270V AC / DC with Optional 24V DC model having frequency range 50/60 Hz.

  8. Does model PIC101N supports universal input?
    Ans.:

      Yes it supports

  9. Which models support °C /°F selectable units?
    Ans.:

      All models support °C /°F selection except PIC101A-VI

  10. What highlighted features does PIC152A-VI have?
    Ans.:
    1. 4 Digits, 7 Segment LED Single Display
    2. LED Status Indicator: Alarm ON
    3. Retransmission Output Features
    4. Universal Input
    5. 24V DC Sensor Supply
  11. Does model PIC152A-VI supports universal input?
    Ans.:

      Yes it supports

  12. Which communication protocol does PIC152A-VI supports?
    Ans.:

      MODBUS RS485

  13. Which application does PIC 101A-T-230 has?
    Ans.:

      MODBUS RS485

  14. Which application does PIC 101A-T-230 has?
    Ans.:

      It has only temperature indication application.

  15. Does model PIC152A-VI supports universal input?
    Ans.:

      Yes it supports

  16. Which application does PIC152A-VI has?
    Ans.:

      RPM Indication

    1. Pressure Indications
    2. Level Indication
    3. Temperature Indication

Frequently Asked Questions
SELEC TEMPERATURE CONTROLLER

  1. Can you explain basic installation process?
    Ans.:
    1. Circuit breaker or mains switch must be installed between power source and supply terminals to facilitate power ‘ON' or ‘OFF’ function. However this switch or breaker must be installed in a convenient position normally accessible to the operator
    2. Connect 240V or 24V power supply as per the selected model
    3. Connect temperature sensors to the respective terminals
    4. Enter the values using provided function keys
    5. Programme according to provided manual
  2. How many types of temperature controllers provided by SELEC?
    Ans.:

      Following are the types:

    1. Temperature controller for basic applications
    2. Temperature controller with PID
    3. Profile temperature controller
    4. Ana log temperature controller
    5. Cooling controller
  3. Thus PID temperature controllers support auto-tuning function?
    Ans.:

    Yes.

  4. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C
    2. Storage temperature -20 to 75 ºC
    3. Humidity (Non Condensing) 0% to 85% RH
  5. Which communication protocols are supported?
    Ans.:

      RS – 485 MODBUS communication

  6. Which special modes are provided in PID models?
    Ans.:
    1. Heat-Cool PID
    2. Auto/Manual
    3. Single point ramp/soak
    4. Soft start
  7. Which features does Ana log temperature controller have?
    Ans.:
    1. J Type TC Input
    2. ON - OFF & Proportional Control
    3. Single Relay Output
    4. Easy to use
  8. Which models support °C /°F selectable units?
    Ans.:

      Following models:

    1. Temperature controller for basic applications
    2. Temperature controller with PID
    3. Profile temperature controller
    4. Cooling controller
  9. Which alarms are supported by cooling controller CH403A?
    Ans.:
    1. High & Low Temperature Alarm
    2. Door Alarm
    3. Sensor Break Alarm
  10. What are the applications of cooling controller?
    Ans.:
    1. Refrigeration
    2. Air Conditioning
    3. Pharmaceutical Industries
  11. What applications TC52 Ana log temperature controller has?
    Ans.:
    1. Plastic Processing
    2. Packaging
    3. Ovens
    4. Water Bath
    5. Furnace
    6. Heat sealing
    7. Extruder Machines
    8. Autoclaves for Sterilization
    9. Pharmaceutical Industries
  12. How many profiles does PR502 profile controller has?
    Ans.:

      It supports 10 profiles.

  13. Which controlling action profile controller supports?
    Ans.:
    1. PID control with auto tuning
    2. And ON/OFF control
  14. Which alarm modes does PR502 profile controller supports?
    Ans.:
    1. Deviation high
    2. Deviation low
    3. Full scale high
    4. Full scale low
    5. Sensor break
  15. Does profile controller PR502 supports universal inputs?
    Ans.:

      Yes..

Frequently Asked Questions
SELEC TIME SWITCH

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 230 AC.
    2. Programme as per given in the manual.
    3. Mount as per selected model type.
  2. What are the applications of SELEC timer switches?
    Ans.:
    1. Street Light.
    2. Alarm / Bells.
    3. Sign boards.
    4. AC Control.
    5. High Mast Lighting.
    6. Water Sprinkling.
    7. Motor / Pump Control.
  3. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C.
    2. Storage temperature -20 to 70 ºc.
    3. Humidity (Non Condensing) 95% RH.
  4. What display specifications does time switches have?
    Ans.:

    Text LCD (Without Backlight) 6 digits for time display, 2 digits for step number.

  5. What is auxiliary supply range for timer switches?
    Ans.:

    The input voltage for ATS2M1-1-16A is 230V AC, and for TS1W1-1-20A and TS2M1-116A it is 230V AC / 110V AC with 50/60 Hz frequency

  6. Which relay operating modes does time switches have?
    Ans.:
    1. Auto mode .
    2. Permanent Override ON .
    3. Permanent Override OFF.
  7. Does time switch have 12 and 24 hour selection?
    Ans.:

    Yes. It has 12-hr (AM/PM) and 24-hr selection.

  8. How much battery backup do time switches have?
    Ans.:

    It has up to 10 years long battery life.

  9. Which battery is used in SELEC time switches?
    Ans.:

    Lithium battery is used in SELEC time switches.

  10. Which indications symbol is shown in time switch?
    Ans.:

    Auto Manual, Lock, Relay status, Day of week, Programming mode symbols are shown in time switches.

  11. How long is the operation period time switches have?
    Ans.:

    It has up to 1 week operation period.

Frequently Asked Questions
SELEC TIMER

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 230V AC / 415V AC / 110V AC.
    2. Programme as per given in the manual.
    3. Mount as per selected model type.
  2. What are the applications of SELEC timers?
    Ans.:
    1. Starters / Control Panel.
    2. Injection Moulding Machinery.
    3. Stone Processing Machinery.
    4. Ball Mill Application.
    5. Offset Printing Industries.
    6. Rubber Processing Industry.
    7. Textile.
  3. SELEC timers divided into which types?
    Ans.:

    They are divided into following types:

    1. Ana log timers .
    2. Digital timers.
    3. Time interval meters.
    4. Digital multifunctional timers.
  4. What are sub types of digital timers?
    Ans.:
    1. Digital timers with single display.
    2. Digital timers with dual display.
    3. Digital timers sequential.
  5. What are sub types of time interval meters?
    Ans.:
    1. LCD time interval meters.
    2. LED time interval meters.
  6. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C.
    2. Storage temperature -20 to 75 ºc.
    3. Humidity (Non Condensing) 95% RH.
  7. Which LED indications are shown in 600SD-2 model?
    Ans.:

      Two LEDs are shown one for star and one for delta..

  8. What run up time 600SD-2 has?
    Ans.:

      It has 3-30s and6-60s run up time.

  9. How reset occurs in 600SD-2?
    Ans.:

      It resets on interruption of power and reset time less than 100 msec.

  10. What delay modes are provided in 800XU?
    Ans.:

      On delay and interval modes are provided in 800XU.

  11. How much memory retention does XT546-246-346 have?
    Ans.:

      They have memory retention up to 10 years.

  12. What is supply voltage range required for 55XU/XC/ES/M/Q models?
    Ans.:

      It is 20 to 240V AC and 12 to 240 VDC with 50/60 Hz frequency range.

  13. What time ranges do XT56-N / 264 / 364 models have?
    Ans.:

      It has 9.99, 99.9, 999 sec, 99.9, 999 min, 99.9 hr time ranges..

  14. Which delay modes are supported by XT543-N/243/343?
    Ans.:

      On delay, interval, cyclic on first & cyclic off first (configurable)

  15. How much memory retention does XT546-246-346 have?
    Ans.:

      They have memory retention up to 10 years

  16. Does XT5042 have dual set points?
    Ans.:

      Yes. It supports dual set point settings

  17. What operating modes Does XT5042 supports?
    Ans.:

      Relay1: On delay, Interval, Cyclic On first, Cyclic Off first, Instantaneous + Delayed at start pulse, Instantaneous + Delayed at power on, motor reverse. Relay 2: On delay, Interval, Cyclic On first, Cyclic Off first, Batch

  18. What are the PT380 function modes?
    Ans.:

      It has parallel and sequential modes.

  19. Do PT380 have configuration lock?
    Ans.:

      Yes. It has configuration lock to avoid inadvertent change in configured parameters.

  20. How much battery life does time interval meters have?
    Ans.:

      It has up to 8 years long battery life..

  21. Which counting direction 600-DT has?
    Ans.:

      It supports down counting direction.

Frequently Asked Questions
SELEC WATER LEVEL CONTROLLER

  1. Can you explain basic installation process?
    Ans.:
    1. Connect the auxiliary supply as per the selected model 230V AC / 415V AC / 110V AC.
    2. Programme as per given in the manual.
    3. Mount as per selected model type.
  2. What are the applications of SELEC timers?
    Ans.:
    1. Booster Pump Control Panels
    2. Water Distribution Pumps House
    3. Suitability for Water Cooled Machines
  3. What highlighted features WLCA2M1 has?
    Ans.:
    1. Specially Designed Sensors
    2. Trip Relay Indication
    3. Used for Drain and Fill Control
    4. 1 C/O Output
    5. Adjustable Sensitivity 1k to 200k Ohms
    6. DIN Rail Mount
  4. What are the usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 50 °C
    2. Storage temperature -20 to 70 ºc
    3. Humidity (Non Condensing) 95% RH
  5. Which LED indications are provided on WLCA2M1?
    Ans.:

    Power ON, Relay ON indications are provided.

  6. Which type of resets provided in WLCA2M1?
    Ans.:

    Automatic reset is provided in the WLCA2M1.

  7. What auxiliary supply range WLCA2M1 has?
    Ans.:

    85 to 270V AC / DC with 50 / 60Hz frequency.

  8. What ratings internal relay has in WLCA2M1?
    Ans.:

    It has 10A@250VAC / 28VDC.

  9. What sensitivity range WLCA2M1 has?
    Ans.:

    It has 1k to 200k Ohms range which is adjustable by front knob.

Frequently Asked Questions
INVT HMI

  1. What is the installation procedure for HMI?
    Ans.:
    1. Give 24v independent power supply to HMI.
    2. Connect communication ports if communication device needed (eg.PLC)
    3. Download set up file for programming software from official website.
    4. Connect USB cable to communicate with PC.
    5. Once it communicated then you can download the project to HMI.
  2. How to download first project to HMI?
    Ans.:
    1. Download the set up file from official website.
    2. Create new project.
    3. Select model number, device drivers and necessary information.
    4. Compile the project and click on download.
    5. Select protocol and data source in the pop up window.
    6. Click on download.
  3. Slow touch response and difficulty to touch controls what to do?
    Ans.:

    This could be due to installation problem:

    1. Check whether the open hole is so small that it squeezes HMI and if so install it according to right Hole size.
    2. check whether setscrews are too tight and ensure the stress of four corners Consistent.
  4. Black screen appears after power on. Why?
    Ans.:
    1. Check the power supply connection;
    2. Check the power type; change the type if it is not independent 24VDC
    3. Check whether the power wire and the power are fine.
  5. Use RW or recipe register, re-power on after power off and find that the data is not saved. Why?
    Ans.:

    Use following registers
    LB: LB0-LB65535 and LB50000-LB51999 belong to the area of power failure protection;
    LW: LW0-LW65535 and LW50000-LW51993 belong to the area of power failure protection.

Frequently Asked Questions
INVT AC DRIVES

  1. What is Installation procedure of drive?
    Ans.:
    1. Select the motor type.
    2. Set correct motor parameters and select control mode of the drive according the actual motor parameters.
    3. Adjust the ACC/DEC time according to the actual running of the load.
    4. Auto tune. If possible de-coupled from the motor load to start dynamic auto tune or
    5. if not static auto tune is available.
    6. Check and change rotation direction as required by changing the wiring of motor.
    7. Set all control and communication parameters as required.
  2. Drive installation precautions?
    Ans.:

      Please follow the instructions:

    1. During the installation process, you must ensure that the converter's power supply has been disconnected.
    2. If the drive has electricity, wait for a power outage. Make sure the power light is extinguished.
    3. It is recommended that the user uses multi meter to ensure the DC bus voltage is below 36V.
  3. What is the output frequency range of INVT drive?
    Ans.:

    Frequency setting range of drive can reach 0-400Hz. For applications with high output frequency requirements, we can supply CHV150 products with an output frequency of up to 3000HZ.

  4. What are the drive installation and usage environmental requirements?
    Ans.:
    1. Running environment temperature is between - 10℃ ~ + 40℃, the max operation temp should not exceed 50℃.
    2. Relative humidity of air is < 90% without condensation. When the installation site of the drive is below 1000m, it can be operated at its rated power.
    3. The maximum amplitude is no more than 5.8m/S and the drive should be away from the source of electromagnetic radiation.
    4. The installation site should be free from oil mist, corrosive flammable gas, no radioactive material, metal dust, dust, oil, water and other foreign objects.
  5. Which INVT drive carry built-in brake unit?
    Ans.:

    Following units carry built-in brake unit: CHF 100A\380V, CHF series 15KW, GD series 30KW

  6. Which INVT drive support CAN open communication?
    Ans.:

    Following models support CAN open communication: GD 300\800, CHV190\100, GD35\300EPS.

  7. What are the requirements for heat dissipation space and air conditioners installed by drive?
    Ans.:

    According to the drive power consumption of 4%, the airtight space has several air conditioners, high-power machines, low-voltage low-power self-equipped fans to maintain good ventilation

  8. How does the torque change in the motor when changing V and f proportionately?
    Ans.:

    The decrease in frequency is completely in proportional to the lower voltage, so the DC resistance will not change due to the reduced AC impedance, which will result in the decrease of the torque at low speed. Therefore, when given V/f at low frequency, the output voltage should be improved so as to obtain a certain starting torque, which is called enhanced starting.

  9. What are the plc usage environmental requirements?
    Ans.:
    1. Operating temperature is between -5 to 55 ºc
    2. Storage temperature -40 to 70 ºc
    3. Humidity (Non Condensing) 10% to 95% RH
  10. What are the basic applications of INVT plc?
    Ans.:

    It can be widely applied in manufacturing industries including textile and chemical, fibre, machine tool, cables, food and beverages, packaging, plastic steel, construction machinery, air conditioner, elevator and printing.

  11. Can we increase required number of digital inputs and outputs?
    Ans.:

    Yes.

  12. What is supply voltage range?
    Ans.:

    85~264VAC (normal operating)

  13. Does it support real time clock?
    Ans.:

    Yes.

  14. Which type of encryption INVT plc provides?
    Ans.:

    Upload password, download password, monitoring password, sub-program password.

  15. What are the highlighted features?
    Ans.:
    1. Small model, high configuration, large capacity and high speed.
    2. Powerful positioning and high speed processing ability.
    3. Strong communication networking capacity.
    4. Powerful programming software.

Frequently Asked Questions
INVT PLC

  1. Can you explain basic installation process?
    Ans.:
    1. Give 240V or 24V power supply independently as per selected model.
    2. Download the AUTO STATION programming software from official INVT website. .
    3. Connect downloading cable from plc to pc it will act as a communication cable as well.
    4. By creating new project you can configure all communication and necessary settings.
    5. After communication you can download the programme.
  2. From where can I download the programming software?
    Ans.:

    You can download the software from following link: https://www.invt.com/service/download/data-download.html?lcid=104&page=2

  3. What settings should I do while creating a project?
    Ans.:

    After selecting, create new project option you have to do following settings:

    1. Enter the project name.
    2. Create location to save project file.
    3. Select the type of plc.
    4. Select the programming language.
  4. What kind of plc do you have?
    Ans.:

    INVT plc series mainly divided in three types:

    1. IVC1 Micro Programmable Controller
    2. IVC2 Series Programmable Logic Controller
    3. IVC3 Series Programmable Logic Controller
  5. How much input should I give to on plc?
    Ans.:

    SELEC plc’s have both models some of them can be operated on 24V supply and some of them can be operated on 240V power supply.

  6. Which communication protocols are supported by INVT plc?
    Ans.:

    CAN open, Mod bus TCP, Mod bus, Free port Programming port protocol.

  7. What are the requirements for heat dissipation space and air conditioners installed by drive?
    Ans.:

    According to the drive power consumption of 4%, the airtight space has several air conditioners, high-power machines, low-voltage low-power self-equipped fans to maintain good ventilation

  8. How does the torque change in the motor when changing V and f proportionately?
    Ans.:

    The decrease in frequency is completely in proportional to the lower voltage, so the DC resistance will not change due to the reduced AC impedance, which will result in the decrease of the torque at low speed. Therefore, when given V/f at low frequency, the output voltage should be improved so as to obtain a certain starting torque, which is called enhanced starting.

  9. What are the control modes of the drive?
    Ans.:

    V/F sine pulse width modulation mode, open loop vector control mode, closed-loop vector control mode and direct torque control mode converter

Frequently Asked Questions
GIC PLC

  1. Can you explain basic installation process?
    Ans.:
    1. Give 24V power supply independently as per selected model.
    2. Download the PL-SOFT programming software from official website.
    3. Connect downloading cable from plc to pc it will act as a communication cable as well.
    4. By creating new project you can configure all communication and necessary settings.
    5. After communication you can download the programme.
  2. From where can I download the programming software?
    Ans.:

    You can download the software from following link:

    https://www.gicindia.com/downloads/#
  3. What settings should I do while creating a project?
    Ans.:

    After selecting, create new project option you have to do following settings:

    1. Enter the project name.
    2. Create location to save project file.
    3. Select the type of plc.
    4. Check communication settings and do the change if required.
  4. Which is the basic plc model?
    Ans.:

    Mini plc pl-100 is the basic model which is used for basic applications.

  5. Which communication protocols are supported by GIC plc?
    Ans.:

    PLC has Mod bus RTU support. Standard RS232/RS485 port with RJ11 for HMI/SCADA Interface and USB Port (Type B) for PC Communication

  6. What are the plc usage environmental requirements?
    Ans.:
    1. Operating temperature is between 0 to 55 ºc
    2. Storage temperature -20 to 70 ºc
    3. HUMIDITY 20-90% RH (Without condensation)
  7. Can we increase required number of digital inputs and outputs?
    Ans.:

    Yes, by connecting external modules.

  8. What is supply voltage range?
    Ans.:

    24 VDC with tolerance - 20% to +10%.

  9. What are the highlighted features?
    Ans.:
    1. Relay base & MOSFET low side base modules.
    2. Isolated digital inputs with sourcing & sinking capability.
    3. Isolated digital transistorized outputs (low side and high side driver).
    4. High-speed inputs.
    5. High-speed outputs ANALOG voltage, current inputs and outputs of 0-10 V and 4-20 mA
    6. PC software for programming, online & offline simulation.
    7. Mini plc has mod bus RTU support.
    8. 128 weekly, monthly & yearly time switches each.
    9. Multiple timers, counters including retentive counters, hour meters & many more function blocks.
  10. How many indicators provided to view current status of plc?
    Ans.:

    Yes. There are indicators provided for Inputs and Outputs with additional run, stop and error commands.

Frequently Asked Questions
L&T AC DRIVES

  1. What is Installation procedure of drive?
    Ans.:
    1. Select the motor type.
    2. Set correct motor parameters and select control mode of the drive according the actual motor parameters.
    3. Adjust the ACC/DEC time according to the actual running of the load.
    4. Auto tune. If possible de-coupled from the motor load to start dynamic auto tune or if not static auto tune is available.
    5. Check and change rotation direction as required by changing the wiring of motor.
    6. Set all control and communication parameters as required.
  2. Inverter installation precautions?
    Ans.:

    Please follow the instructions:

    1. During the installation process, you must ensure that the converter's power supply has been disconnected.
    2. If the inverter has electricity, wait for a power outage. Make sure the power light is extinguished.
    3. It is recommended that the user uses multi meter to ensure the DC bus voltage.
  3. What are highlighted features this VFD has?
    Ans.:

    following are some highlighted features:

    1. Sensor less Vector Control
    2. Integrated Potentiometer
    3. Inbuilt PID
    4. Built-in Braking Chopper
    5. Draw Mode
    6. Hardware Base Block
    7. Built-in 24V power source
    8. Conformal Coated PCB
    9. RPM Display on Keypad
    10. RS485 Mod bus RTU Communication
  4. What is the output frequency range of L&T drive?
    Ans.:

    Frequency setting range of drive can reach 0-400Hz.

  5. What are the drive installation and usage environmental requirements?
    Ans.:
    1. Running environment temperature is between - 10℃ ~ + 50℃, the max operation temp should not exceed 50℃.
    2. Relative humidity of air is <= 90% without condensation.
    3. The maximum altitude is 1000m above sea level maximum 5.8 m/s2 and the drive should be away from the source of electromagnetic radiation.
    4. The installation site should be free from oil mist, corrosive flammable gas, no radioactive material, metal dust, dust, oil, water and other foreign objects.
  6. Which L&T drive carry built-in brake unit?
    Ans.:

    Following units carry built-in brake unit:

    1. Cx2000 for entire series
    2. Sx2000 up to 30 KW
    3. Fx2000 up to 22 KW
  7. When large motors move together, why does the drive stop?
    Ans.:

    When the motor starts, it will flow through the starting current corresponding to capacity, the transformer on motor stator side will generate voltage drop, the impact of voltage reduction is large when motor capacity is large. The drive connected to the same transformer will report under voltage or transient stop and cause protection function to act, thus operation is stopped.

  8. What happens to the input overvoltage?
    Ans.:

    The input of the overvoltage will cause tripping, or even damage drive internal circuit.

  9. Can ac servo motors be controlled by drive?
    Ans.:

    Yes, but not with accuracy of the servo controller.

  10. 1Why is there leakage current problem?
    Ans.:

    When the drive is not used, the leakage current is generally small. When using the drive, as the power module of the drive is high speed switch, the output current has the existence of high harmonics. There is a sense of inductance between the cable and the ground and the cable, resulting in a large leakage current (which can be up to 10 times less than the frequency drive).

  11. Is there any limit to the direction of the installation of drives?
    Ans.:

    The drive can be installed on the wall or in a cabinet, not to reduce the heat dissipation effect of the drive, please install it vertically.

  12. Why it does not stop after pressing stop button and no fault trips?
    Ans.:

    If the voltage is not high, the cause of failure may be:

    1. Bad button of the drive.
    2. Press the stop button, the drive slows down too fast and the load inertia is large, and there is no brake device.
    3. Damage of main control board.
    4. Deviation during auto tuning is too large
  13. What are the control modes of the drive?
    Ans.:

    V/F, Sensor less Vector, Slip Compensation, Easy Start Selectable

  14. What is second motor operation?
    Ans.:

    When drive operates 2 motors connected to two different types of loads Single AC Drive can maintain 2 motor parameters with different Acc / Dec parameter setting. It does not drive 2 motors at the same time. For isolated operation of motors one VFD can be used in place of 2.

  15. Can the drive of L&T be connected to the power supply of 60HZ?
    Ans.:

    Yes.

  16. The reason for phase loss fault
    Ans.:

    The drive has single phase 220V and three-phase 380V, and the input phase loss is only in the three-phase product. R, S, and T are the three-phase AC input, and when one of the phases is disconnected due to the failure of the fuse or breaker, the phase loss fault occurs.

  17. Which L&T drive support CAN open communication?
    Ans.:

    Following models support CAN open communication: Sx2000 and Fx2000

  18. Which L&T drives support DP communications?
    Ans.:

    Following models support DP communication: Sx2000, Fx2000 and Ex2000

Frequently Asked Questions
SUBZERO HMI

  1. What is the installation procedure for HMI?
    Ans.:
    1. Give 24v independent power supply to HMI.
    2. Connect communication ports if communication device needed (eg.PLC).
    3. Download set up file for programming software from official website.
    4. Connect USB cable to communicate with PC.
    5. Once it communicated then you can download the project to HMI.
  2. How to download first project to HMI?
    Ans.:
    1. Download the set up file from official website.
    2. Create new project.
    3. Select model number, device drivers and necessary information.
    4. Compile the project and click on download.
    5. Select protocol and data source in the pop up window.
    6. Click on download.
  3. Slow touch response and difficulty to touch controls what should I do?
    Ans.:

    This could be due to installation problem:

    1. Check whether the open hole is so small that it squeezes HMI and if so install it according to right Hole size
    2. check whether setscrews are too tight and ensure the stress of four corners as consistent as possible.
  4. Black screen appears after power on. Why?
    Ans.:
    1. Check the power supply connection;
    2. Check the power type; change the type if it is not independent 24VDC
    3. Check whether the power wire and the power are fine.
  5. Use RW or recipe register, re-power on after power off and find that the data is not saved. Why?
    Ans.:

    RW or recipe data, etc., when the power is off, if the power is suddenly turned off, the data will be lost in the last few seconds to one minute. SRB17 can be set to on by using system register SRB17. It will be written immediately when power is lost, and will be saved every time once whenever it changes. No data will be lost.

  6. Is the administrator authority the highest in user rights? Is it possible to operate all the privileged
    Ans.:

    User rights won't be divided to high or low. Only users to the corresponding rights can operate on components that need corresponding permissions; but a user can have multiple permissions at the same time.

  7. Can the user level be logged off?
    Ans.:

    No, but you can force the current password level to be modified. Note that you can only switch from a high level to a low level. SRW 105, occupying 1 word. SRW 105 writes 0, which can be understood as logout.

  8. How to set up serial communication with PLC and other devices?
    Ans.:

    Add the corresponding driver in the communication connection, and set the communication parameters, pay attention to set the same as the device side setting such as PLC. Communication line connection:
    Method 1: COM port setting page, there is a big box "Connection Description" below, click to enter the connection description interface.
    Method 2: Open the software-help-online help-3 communication connection description.

  9. What alternatives do the “inching” buttons use?
    Ans.:

    Switch - reset. Reset: This is the inching property. During operation, when your hand always pressed the button, the bit address is always ON, and when the hand left, it immediately becomes OFF.

  10. How to shield the communication timeout prompt?
    Ans.:

    Communication prompt mask bit (SRW496.1 is ON for masking communication timeout prompt, SRW496.2 masks communication error prompt); Add timer in common window, trigger condition - trigger when window is open; End condition - Stop when window is closed; Timing Function - Set to, click "Use bit index of word register" to turn SRW496.1 ON.

  11. The project import failed. What is the reason?
    Ans.:

    The project can't be uploaded directly. You need use the “package to disk button” to generate the .fpg file and you need select the U disk to store the path of the package file in the current path. Use the “Import Project” option, then the data will be transferred and you just need wait for the file uploading.

  12. Downloading by USB is not successful, what is the reason?
    Ans.:
    1. First, please confirm whether the touch screen model corresponds to the touch screen software (FE2XXX-FE3XXX uses FD2000 software, and the screen after FE4XXX uses FS software)
    2. Check if there is "FLEXEM USB" under "Computer" - "Management" - "Device Manager" - "Universal Serial Bus Controller". If not, it indicates that there is a problem with the USB cable or the driver installation failed.
  13. How to enter the settings interface?
    Ans.:

    Power on the touch screen, while holding down any point on the screen, until the “Click to operate” interface appears, click “Settings” to enter the setting interface.

  14. How to select driver for communicating device?
    Ans.:

    Click on project window, select the com port which is to be used. Select master or slave mode, then enter manufacturer details and select the device type driver will be automatically get assigned.

  15. Where to enter communication parameters for communicating device?
    Ans.:

    Click on project window, select the com port which is to be used. In communication setting section you will find the communication parameters.

  16. 1Can I have password protection for project file?
    Ans.:

    Yes. In global settings window under the system settings you can set passwords for upload, download, decompile, and for developer.

  17. 1Where do I select operator log contents?
    Ans.:

    In extended settings window under the system settings check the box user right level log there you can check the contents which you want to log in operator log table.

  18. 1Can I pop the window using function button?
    Ans.:

    Yes. You can pop up the window and also close the pop up window using function button. For this you have to click window operation and set the property and select the window.

  19. How can I save screen shots to the extended memory?
    Ans.:

    In switch function settings click the function key then select the system operation under which you can select the save screenshot to the extended memory option beside you can select the USB or SD card as extended memory.

  20. Can I change HMI model in existing programme?
    Ans.:

    Yes. Click setup and open the HMI settings window then click exchange HMI option and select the target model.

  21. Can I pull stored data of HMI through Ethernet IP or FTP?
    Ans.:

    Yes. It’s applicable for only HMI models with Ethernet port, for this you have to run macro in background.

Frequently Asked Questions
BEIJER HMI

  1. What is the installation procedure for HMI?
    Ans.:
    1. Give 24v independent power supply to HMI.
    2. Connect communication ports if communication device needed (eg.PLC)
    3. Connect Ethernet cable to communicate with PC.
    4. Set IP address for both HMI and PC.
    5. Once it get communicated then you can download the project to HMI
  2. How to download first project to HMI?
    Ans.:
    1. Download the ix developer set up file from beijer official website
    2. Create new project
    3. Add model number, device drivers and necessary information.
    4. Rebuild the project and click on download
    5. Set target IP address in the pop up window
    6. Make sure, the IP Address of the HMI matches the Target IP Address. The Target IP Address should be coming from a different IP Address. E.g. Target IP = 192.168.0.1 | PC IP = 192.168.0.2.
  3. Slow touch response and difficulty to touch controls what to do?
    Ans.:

    This could be due to installation problem:

    1. Check whether the open hole is so small that it squeezes HMI and if so install it according to right Hole size.
    2. check whether setscrews are too tight and ensure the stress of four corners as consistent as possible.
  4. Black screen appears after power on. Why?
    Ans.:
    1. Check the power supply connection;
    2. Check the power type; change the type if it is not independent 24VDC
    3. Check whether the power wire and the power are fine.
  5. Is a way to load a project with an USB stick without use a laptop (with project/export on IX software)?
    Ans.:
    1. Yes. You can transfer your project to a USB flash device
    2. In the software select the project Tab and click Export, and browse to flash drive
    3. Then insert the USB device into the port and power on the HMI.
    4. During HMI start up you will get a dialog that asks if you would like to install the project from the USB drive to the HMI.
  6. I can't see any Targets in the page appear when I trying to download or upload the program (project) in to Beijer HMI.
    Ans.:

    You should be able to type in the "target IP Address" in the prompt after accessing the "Download Project" menu. Make sure of a couple things first, the IP Address of the panel matches the Target IP Address. The Target IP Address should be coming from a different IP Address. E.g. Target IP = 192.168.0.1 | PC IP = 192.168.0.2.

  7. How to update the HMI-program without a laptop if the new program is written to a SD card?
    Ans.:
    1. You can use the "Export" Button with a picture of a folder on it to save your project to a USB Stick.
    2. Then plug the USB Stick into the Panel and cycle the power. The HMI will find the project on the USB stick and ask do you want to copy that project to the HMI.
    3. You can export the database to a USB Stick or External Memory card using the "Database Export" action. You can also access the memory card via a script just like the normal file system.
  8. How to change the COM1 multi-port type ?
    Ans.:

    The QTERM-A7 and QTERM-A12 terminals COM1 can be changed to RS-232, RS-422 or RS-485. Select the port type under the "System" -> COM1 drop down list.

  9. What is the difference between Build and Rebuild?
    Ans.:

    Build only compiles modified code.
    Rebuild clears the output folder then builds all.

  10. 1Is there a way to synchronize with a time server?
    Ans.:

    This can be done under the System settings in iX developer. Check the "Use SNTP time synchronization" box and point it to your desired server.

  11. 1Can we download project from pen drive to Panel.
    Ans.:

    Yes, you just need to save the project to a USB drive. You do that by pressing the "Transfer" button under Project.

  12. 1Is there any way to set the IP Address of the Stations? In a form of clicking a button that lets you change it?
    Ans.:

    You can change the controller settings including station IP addresses in a deployed program using the "Change Active Controllers" action. The terminal will need to be re-booted after editing the settings.

  13. 1How to make a pop up?
    Ans.:

    Under the 'General' tab there is an option to select Pop up and/or Modal, set the position and size of the screen.

  14. 1Is there any way to batch delete or sort unused tags in the iX Developer tag database, or do they have to be checked and deleted one at a time?
    Ans.:
    1. In the tag tab there is a 'Cross Reference' button. It will search your project and tell you where the tag is used in iX objects. It will not tell you if you are using a tag in a script.
    2. You can use that feature to see if a tag is used, and then delete the ones you are not using. You have to do it manually using the Cross Reference button, one tag at a time.
  15. I want to create an Alarm Report screen. What should I do?
    Ans.:

    You need to add the Alarm Viewer to the screen.

  16. Could you please tell me, how to change the date format in my screen?
    Ans.:

    The date format is controlled by the selected region for the Date\Time. Try to set the region you are in. (under Settings-> Time Zone & Region).