GE VAT20 Instruction Manual
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GE VAT20 Instruction Manual

Variable speed drive unit inverter
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------------------------------------------------------------ NOTICE ---------------------------------------------------------------
1.
Read this manual thoroughly before using the VAT20, and store
in a safe place for reference.
2. When using this speed drive unit in the EU, compliance with the EMC Directive
(89/336/EEC) is required. Check carefully Chapter 2.4. - Installation.
3.
The contents of this manual can be changed without notice
Copyright GE Industrial Systems, GE Power Controls, January 2004
VARIABLE SPEED DRIVE UNIT
INVERTER
VAT20
1ph 200V-240V system, 0.2-0.75kW
1ph/3ph 200/240V system, 1.5-2.2kW
3ph 380/460V system, 0.75-2.2kW

INSTRUCTION MANUAL

GE Power Controls
1

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Summary of Contents for GE VAT20

  • Page 1: Instruction Manual

    3ph 380/460V system, 0.75-2.2kW INSTRUCTION MANUAL ------------------------------------------------------------ NOTICE --------------------------------------------------------------- Read this manual thoroughly before using the VAT20, and store in a safe place for reference. 2. When using this speed drive unit in the EU, compliance with the EMC Directive (89/336/EEC) is required.

  • Page 2: Table Of Contents

    VAT20 Table of Contents Foreword..................3 Chapter 1 Safety Precautions 1. Precautions of operation......... 4 2. Precautions of operation environment ....7 Chapter 2 Hardware Instruction and Installation 1. Operation environment ........... 8 2. Type number definitions ......... 9 3. Specifications ............10 4.

  • Page 3: Foreword

    Do not contact the primary PCB of the inverter. 2. Examination before installation Every GE Power Controls inverter has been fully tested and examined before shipment. Please carry out following examination procedures after unpacking your inverter. Check to see the model number of the inverter. It should be the one that you ordered.

  • Page 4: Chapter 1 Safety Precautions

    Chapter 1. Safety Precautions 1.1. Precautions of operation Before turning ON power CAUTION Choose appropriate power source with correct voltage setting as the input voltage specification of the inverter. WARNING Special care must be taken while wiring the primary circuitry panel. The L1 and L2 terminal must be connected to input power source and must not be mistakenly connected to T1, T2 or T3 terminal.
  • Page 5 When power is turned ON WARNING Do not attempt to install or remove connector of inverter when the power supply is turned on. Otherwise, the inverter may be damaged due to the surge peak caused by the insertion or removal. When momentary power loss is longer than 2 seconds (the large of horse power, the longer of time), the inverter does not have enough storage power to control the circuit.
  • Page 6 CAUTION Do not touch the heat-sink base. The inverter can be easily operated from low-speed to high-speed range. Please reconfirm the operating range of motor and machinery. Do not examining the signals on the PCB of the inverter when it is under operation. All inverter had been properly adjusted before delivery.

  • Page 7: Precautions Of Operation Environment

    1.2. Precautions of operation environment Keep away from Avoid direct sunlight Keep away from oil corrosive gas or liquid grease and gas Keep away where rain or Avoid metal dust and Keep away from salty dripping water may get dusty environment environment into the inverter Avoid where environment...

  • Page 8: Chapter 2 Hardware Instruction And Installation

    Avoid electric-magnetic interference (soldering or power machinery) Avoid vibration, if vibration can not be avoided, anti-rattler should be installed to reduce it. If inverter is installed in control panel, please tear off shield sticker of VAT20. Correct alignment Correct alignment...

  • Page 9: Type Number Definitions

    2.2. Type number definitions → Inverter Type U20N0K7S (for example) → Input Power Rating I/P: AC 1ph 200 ~ 240V 50/60Hz → Output Rating O/P: AC 3ph 0 ~ 240V 1.6kVA 4.2A Series Power Voltage Power Option Rated N:200V, 1ph 0K2: 0.2kW S: Standard 0K4: 0.4kW...

  • Page 10: Specifications

    2.3. Specifications Basic specifications, 200V series Type No: VAT20- U20N0K2_ U20N0K4_ U20N0K7_ U20N1K5_ U20N2K2_ Suitable Motor Power Rating (kW) 0.75 Motor HP Rated Current A 10.5 Capacity kVA 0.53 0.88 Weight (kg ) 0.76 0.77 1.66 1.76 Input Voltage Max.
  • Page 11 Under voltage DC voltage < 200V (200V series), DC < 400V (400V series) function Momentary power-loss 0 ~ 2 sec : VAT20 can be restart by speed search Stall prevention Accelerate / Decelerate / Constant speed Output terminal short-circuit Electronic circuitry protection...

  • Page 12: Wiring

    2.4. Wiring Moulded-Case Circuit Breaker / Contactor GE Power Controls maintenance and service do not apply to damage caused by following situation: (1) Damage to the inverter caused by the lack of appropriate molded-case circuit breaker or a circuit breaker with too large capacity is installed in between the power supply and the inverter.
  • Page 13 Do not operate the magnetic contact to switch ON or OFF the inverter. VAT20 Power improvement AC Reactor Inverter If large capacity power source is applied (over 600kVA), additional AC reactor may be added to improve power factor.
  • Page 14 (A) External wiring should be carried out in accordance with following requirement. Check and reassure the wiring is correct after the wiring is complete. (Do not utilize the control circuitry buzzer to check the wiring.) EMI connecting: It is very important that the connections between the frequency inverter with the screened motor cable and the EMI filter during the EMI tests are as following.
  • Page 15 Class A, Industrial Environment (only for drives with built-in EMC class A filter, U20----S) Power part When the distance between the inverter and motor is longer than 100m, connection wire should be carefully chosen to reduce the wiring resistance below 3% and the voltage drop (V) = √...
  • Page 16 Grounding circuitry must not be formed when grounding several inverters together. Good Good Not good (D) Wire specification Choose appropriate wire with correct diameter for primary power circuitry and control circuitry in accordance with electricity regulations. (E) Upon completion, check out to reassure the wiring correctness, broken wires, and secure terminal screws.
  • Page 17 * Tightening torque for TM1 is 1.3 or 16 LBS-IN (U20-N1K5/N2K2 and U20-X0K7/X1K5/X2K2) * Wire voltage rating must be a minimum of 300V (200V series)/600V (400V series) VAT20 control circuitry terminal block ( TM2 ) description Terminal symbol Terminal function description...

  • Page 18: Dimensions & Terminal Block Layout

    SW1 function description SWITCH 1 External signal type 0~20mA analog signal ( When Fn11 set to 1 ) 4~20mA analog signal ( When Fn11 set to 2 ) 0~10 VDC analog signal ( When Fn11 set to 1 ) 2.5. Dimensions and terminal block layout Frame 1: U20N0K2, U20N0K4, U20N0K7 Terre Grounding...
  • Page 19 Frame 2: U20N1K5, U20N2K2, U20X0K7, U20X1K5, U20X2K2 Grounding M4 terre Plaquette de terre (voir note) Grounding (see note) NOTE For safety reason, we strongly recommend users to remove the M4 ‘green’ grounding screw, then screw the enclosed ‘metal frame grounding terminal’...
  • Page 20 Dimensions and Installation of class B filter (U20AF0K7) Inverter with class B filter (U20AF0K7) mounted. Inverter with class B filter (U20AF0K7) and DIN rail (U20AR0K7) mounted.
  • Page 21 Mounting screw operation diagram DIN rail (U20AR0K7) operation diagram Step 1 Aim and insert the 4 retention ribs of U20AR0K7 at the 4 holes in rear panel of VAT20 . Step 1 Use small screw Step 2 driver inserting Inserting hole Push the...
  • Page 22 DIN rail installation Mounting clamp and 35 mm width rail must be used to install VAT20 on the rail. Install VAT20 Dismounting VAT20 Pull mounting plate Mounting plate Screwdriver First place the groove on the back of module on the upper edge of din rail , 1 Pull the mounting plate downward.

  • Page 23: Chapter 3 Software Index

    Chapter 3. Software Index 3.1. Control Panel Instructions POWER LED DATA ▼ ▲ STOP STOP STOP STOP CAUTION Do not operate keypad by screwdriver or other sharp-ended tool to avoid damaging keypad. Brief keypad operation flowchart (FREQ) (1) (FREQ) (READ) DATA F ××...

  • Page 24: List Of Parameters

    3.2. List of parameters Unit Range Factory Function Function Description setting Note Factory Adjustment Accelerate time 0.1 sec 0.1 ~ 999 S (1)(3) Accelerate / Decelerate Time Decelerate time 0.1 sec 0.1 ~ 999 S (1)(3) 0: Forward / Stop, Reverse / Stop 0 ~ 1 Operation mode 1:Run/Stop, Forward / Reverse...

  • Page 25: Parameter Function Description

    3.3. Parameter function description Fn_00 Factory adjustment parameter. Do not change. Fn_01 : Accelerate time = 0.1 up to 999 sec Fn_02 : Decelerate time = 0.1 up to 999 sec 1. Accelerate/decelerate time calculation formula: Accelerate time = Fn_01 x Setting Frequency 60 Hz Decelerate time = Fn_02 x...
  • Page 26 Fn_04 : Motor rotation direction setting = 0 : forward 1 : reverse Although there is no Forward/Reverse push button on the digital control panel, it is possible to adjust forward/reverse function by changing Fn_04 setting. Note: When Fn_22 =1: Reverse disabled, the Fn_04 can not be set to 1. Then keypad indication would display “LOC”.
  • Page 27 Fn_06 : frequency upper limit = 1 up to 120Hz or 200Hz Fn_07 : frequency lower limit = 0 up to 120Hz or 200Hz (*) Only for with CPU version from 1.9 (check function F_29) Fn_06 (freq. Upper limit) Internal frequency signal Fn_07 (freq.
  • Page 28 Fn_10 : Operation Control = 0 : Keypad = 1 : External terminal TM2 Note: When Fn_10=1 (external operation control), emergency stop on the keypad is enabled. When Fn_10=1, please refer to the descriptions of F_23/24, in order to avoid the damage to the human and the machine.
  • Page 29 Fn_12 : carrier frequency = 1 up to 5 or up to 10 (*) Only for drives with CPU version from 1.9 (check function F_29) F_12 Carrier frequency F_12 Carrier frequency F_12 Carrier frequency 4 kHz 8 kHz 15 kHz 5 kHz 10 kHz 16 kHz...
  • Page 30 Fn_14: Stopping method = 0 : decelerate stop 1 : free run stop Fn_15: DC braking time = 0 up to 25.5 sec Fn_16: DC braking starting frequency = 1 up to 10Hz Fn_17: DC braking level = 0 up to 20% If Fn_14 = 0 When the inverter receive the stop instruction, it decelerate to the frequency setup by Fn_16 and then output voltage level setup in the Fn_17;...
  • Page 31 2. Function of the electronic thermal protecting inverter (1) When the load is within 103% of the inverters rated current, the operation continues. When the load reaches 150% of rated current of the inverter, the operation will continue for 1 minute. ( Refer to curve (1) of figure 3) (2) After the activation of the electronic thermal switch, the inverter is shut off immediately.
  • Page 32 3. Fn_19, Fn_20 =3: External emergency stop signal When the external emergency stop signal is activated, the inverter proceeds to decelerate and stop, (ignoring the setting of Fn_14). The inverters E.S. light will flash after stopping. After the emergency stop signal is deactivated, turn the RUN switch OFF and then ON again to cycle it. (Fn_10 =1) Or, push the RUN key (Fn_10=0).
  • Page 33 Fn_22:Reverse instruction = 0 : REV command enabled = 1 : REV command disabled Note: When Fn_04 is set to 1 (reverse), Fn_22 can not be set to 1, indication displays “LOC”. Fn_04 must be change to 0 before setting Fn_22 to 1. Fn_23: Restart after momentary power loss = 0 : restart enabled = 1 : restart disabled...
  • Page 34 Fn_24: Number of Auto-restart times = 0 up to 5 1. When Fn_24 = 0, the inverter will not try to restart. (Except for momentary power loss, please refer to F_23 for details) 2. When Fn_24 > 0 , the inverter will resume operation via SPEED SEARCH at approximately 0.5 second after a function trip.
  • Page 35 F_28: Direct start = 0 : Direct start enable when remote Run command on = 1 : Direct start disable when remote Run command on drives with CPU version from 2.1 (check function F_29) When F_28 = 1 and control mode is remote control (F_10 = 1), the inverter can not start if RUN switch is ON when power is engaged, must be turned the RUN switch OFF and turned ON again, then inverter can start.

  • Page 36: Malfunction Indication And Countermeasure

    3.4. Malfunction indication and countermeasure 3.4.1. Manual reset inoperative faults INDICATION CONTENT POSSIBLE CAUSE COUNTERMEASURE Program error Outside noise interference Place a RC surge absorber in parallel with noise generating magnetic contact EEPROM error EEPROM defective Replace EEPROM Voltage too 1.
  • Page 37 3.4.3. Manual Reset and Auto-Reset Operative faults INDICATION CONTENT POSSIBLE CAUSE COUNTERMEASURE Transient 1. Motor coil short-circuit with 1. Examining motor over-current external casing 2. Examining wiring starting machine 2. Motor connection wire 3. Replace transistor module short-circuit with grounding 3.
  • Page 38 3.4.4. Other indications INDICATION CONTENT DESCRIPTION Zero Speed When Fn_11 = 0, Fn_7= 0 and frequency setting < 1 Hz Stopping When Fn_11 = 1, Fn_7<(Fn_6/100), and frequency setting <(Fn_6/100) Keypad The inverter setup to external operation (Fn_10=1). If the STOP emergency stop key in the keypad is pressed at the middle of operation, the inverter stop according the setting in Fn_14 and flash SP2 after...

  • Page 39: General Troubleshooting Method

    3.5. General Troubleshooting Method ABNORMALITY CHECK POINT COUNTERMEASURE Is power source voltage delivered into L1, Check if the power source switched on. L2 terminal (is the charging indicator Turn power source OFF and then ON illuminated)? again. Reconfirm the power voltage level. Check to see if the mounting screw secured.
  • Page 40 Simple VAT20 Troubleshooting Procedure VAT20 INV M alfunction Clearly defined m alfunction Exam ining com ponent w ith Sign of burn Any sign of burnt sign of burnt or breakage or breakage of breakage? Indication of ABNORM AL Is the prim ary...
  • Page 41 (Continued from 40) Examining Inverter parameters Carry out parameter initialization Designate operation control method Frequency instruction setting Does the controller displays Replace control board frequency setting? Is there voltage output on Replace control board UVW terminals? No, The problem Is replacing is not corrected Connect to motor and control board correct...
  • Page 42 Error handling of malfunction indication of OC.OL When inverter display malfunction indication OC.OL. Is the primary ABNORMAL Replace I.G.B.T. circuit I.G.B.T. normal? NORMAL Is the appearance Replace defective PCB normal? Switch ON power supply Is there any malfunction indication Is the current ABNORMAL Input operation detector normal?
  • Page 43 Error handling of malfunction indication of OV.LV Inverter display OV.LV Is there any abnormal breakage Replace defective board on appearance Switch ON power supply Is there any Replace control board malfunction indication Input operation instruction Input frequency instruction Is the output Replace control board frequency of controller displayed...
  • Page 44 ABNORMAL abnormality L1-L2 power input terminals normal? • Poor wiring Normal (within +/- 10% of nominal value) VAT20 malfunction Is Power LED off ? Place the operation Is the operation switch to RUN switch on the RUN position. position?
  • Page 45 (2) Motor over-heat Reduce loading there over-loading Enlarge VAT20 and condition or the load current exceeds rated Motor capacity current? Operate at low Select another motor speed for a long time? Is the voltage level between VAT20 malfunction T1-T2, T2-T3, and T3-T1...
  • Page 46 Routine examination and periodical examination Inverter requires routine and periodical examination and maintenance for a more stable and safer operation. Refer to following table for required examination item for a more stable and safer operation. Carry out examination after the “ Power LED ” indicator goes off for 5 minutes to prevent the maintenance personnel injury caused by the remaining charges in the capacitor of inverter.

  • Page 47: Chapter 4 Maintenance And Peripherals

    (a) Remove all conducting wires between VAT20 and outside world. Power must be turned OFF. (b) The dielectric strength test inside VAT20 should be carried out only for VAT20 major circuitry. Use DC 500V: high resistance meter. Measured resistance should be higher than 100M ohm.

  • Page 48: Voltage Current Measurement

    4.2. Voltage Current Measurement The voltage and current measurement on the primary and secondary side may be different for the reason of the instrumentation and the high frequency wave. Refer to following diagram for measurement: L1 (L) T1 (U) T2 (V) L3 (N) T3 (W) SPEED DRIVE...

  • Page 49: Input Ac Reactor Specifications

    4.3. Input AC Reactor Specification VAT20 Model AC Reactor AC Reactor VAT20 Model AC Reactor AC Reactor U20N0K2 ACR3A7H0 37G00204 U20X0K7 ACR3A8H1 37G00201 U20N0K4 ACR8A2H5 37G00204 U20X1K5 ACR4A5H1 37G00402 U20N0K7 ACR12A2H5 37G00401 U20X2K2 ACR6A3H4 37G00402 1ph, U20N1K5 ACR18A1H3 37G00801 3ph, U20N1K5...

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