GE VAT20 User manual

1
GE Power Controls
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
------------------------------------------------------------ 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

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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. Wiring................................................................... 12
5. Dimensions & terminal block layout...................... 18
Chapter 3 Software Index
1. Control panel instructions..................................... 23
2. List of parameters................................................. 24
3. Parameter function description............................. 25
4. Malfunction Indication and countermeasure......... 36
5. General troubleshooting method .......................... 39
Chapter 4 Maintenance and Peripherals
1. Maintenance and examinator............................... 47
2. Voltage current measurement .............................. 48
3. Input AC reactor specifications............................. 49
4. EMC filter (class B) specifications ........................ 49
5. DIN-rail specifications........................................... 49
6. Dynamic braking resistor specifications................ 49

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1. Foreword
To fully employ all functions of the inverter, and to ensure the safety of users, please read through
this operating manual in detail. Should you have any further query, please feel free to contact your
local distributor or customer service of GE.
Precaution
The inverter is a power electronic device, for safety reason, please take special care for
paragraphs with “WARNING” or “CAUTION” symbol. They are important safety precautions to be
aware of while transporting, installation, operating or examining the inverter. Please following
these precaution to ensure your safety.
WARNING Personnel injury may be resulted by improper operation.
CAUTION The inverter or mechanical system may be damaged by improper operation.
WARNING
●Do not touch the PCB or components on the PCB right after turning off the power before the
charging indicator went off.
●Do not attempt to wire circuitry while power is on. Do not attempt to examine the components
and signals on the PCB while the inverter operating.
●Do not attempt to disassemble or modify internal circuitry, wiring, or components of the
inverter.
●The grounding terminal of the inverter must be grounded properly with 200V class type III
standard.
●This is a product of the restricted sales distribution class according to EN 61800-3.
In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.
CAUTION
●Do not attempt to proceed dielectric strength test to internal components of the inverter.
There are sensitive semiconductor-devices vulnerable to high voltage in the inverter.
●Do not connect the output terminals: T1(U), T2(V), and T3(W) to AC power outlet.
●The CMOS IC on the primary PCB of the inverter is vulnerable to static electrical charges.
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.
●Check to see if there is any damage during the transportation. Do not connect the inverter
to the power supply if there is any sign of damage.
Report to regional sale representative if you find any abnormal condition as mentioned above.

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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. This may damage the inverter when the power is
turned on.
CAUTION
l Do not attempt to transport the inverter by the front cover. Securely hold the inverter
by the heat-sink mounting chassis to prevent the inverter from falling that may cause
personnel injury or damage the inverter.
l Install the inverter onto firm metal base or other inflammable material. Do not install
the inverter onto or nearby any flammable material to avoid fire.
l Additional cooling fan should be installed if several inverter are installed into one
control panel to lower the temperature inside below 40° to avoid overheating or fire
alarm.
l Turn off power supply before proceeding removal or installation of operating panel.
Carry out installation procedure according to instructions given to avoid poor-contact
situation resulting operating panel malfunction or no displaying information.
l Suitable for use on a circuit capable of delivering not more than 5000RMS
symmetrical amperes, 240V maximum
l Not proved with over speed Protection or equivalent
l Only intended for use in a pollution degree 2 macro environment or equivalent

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When power is turned ON
WARNING
l 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.
l When momentary power loss is longer than 2 seconds (the large of horse power,
the longer of time), theinverter does not have enough storage power to control the
circuit. Therefore, when power is regenerated, the operation of the inverter is
based on the setup of F_10 and the condition of external switch, this is considered
to be ‘restart’ in the following paragraphs.
l When the momentary power loss is short, the inverter still has enough storage
power to control the circuit; therefore, when power is regenerated, the inverter will
automatically start operation again depends on the setup of F_23.
When restart the inverter, the operation of the inverter is based on the setup of
F_10 and the condition of external switch (FWD/REV button). Attention: the
restart operation is irrelevant with F_23/F_24.
(1) When F_10=0, the inverter will not start after restart.
(2) When F_10=1 and the external switch (FWD/REV button) is OFF, the inverter
will not start after restart.
(3) When F_10=1 and the external switch (FWD/REV button) is ON, the inverter
will start automatically after restart. Attention: Base on safety reason, please
turn off the external switch (FWD/REV button) after power loss to avoid
possible damage to the machine and the human body after sudden
regeneration of power.
Under Operation
WARNING
Do not switch ON or OFF motor at the middle of operation. Otherwise, the inverter
over-current break-down may be resulted.
WARNING
l Do not remove the front cover of the inverter when the power is ON to avoid
personnel injury caused by electrical shock.
l When the automatic restart function is enabled, the motor and machinery will be
restarted automatically after fully stop from operation. Do not get close to the
machinery to avoid personnel injury.

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CAUTION
l Do not touch the heat-sink base.
l The inverter can be easily operated from low-speed to high-speed range. Please
reconfirm the operating range of motor and machinery.
l Do not examining the signals on the PCB of the inverter when it is under operation.
l All inverter had been properly adjusted before delivery. Do not attempt to adjust it.
CAUTION
Do not proceed with disassemble or examination procedure before ensuring that the
power is off and the Power LED extinguished.
During examination and maintenance
CAUTION
Inverter environment should be within temp: –10OC ~ +40OC, humidity under 95% RH
without condensing.
CAUTION
After the removal of shield sticker, the environment temperature should be within
-10OC and +50OC and humidity under 95% RH without condensing. Besides, the
inverter should be free from water dripping or metal dust.

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1.2. Precautions of operation environment
Avoid direct sunlight Keep away from
corrosive gas or liquid Keep away from oil
grease and gas
Keep away from salty
environment
Keep away where rain or
dripping water may get
into the inverter
Avoid metal dust and
dusty environment
Avoid massive vibration
Avoid heat
Avoid where environment
temperature is too high
Keep away from high
electrical-magnetic wave
or ultra-high wave. Keep away from
radio-active matter Keep away from
flammable material
oil

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Correct alignment Correct alignment
Correct alignment Wrong alignment Wrong alignmentCorrect alignment
Cooling fan
Cooling fan
Cooling fan
Cooling fan
Chapter 2. Hardware Instruction and Installation
2.1. Operation Environment
The installation site of the inverter pose direct impact to the fully functionality and the life-span
of your inverter. Please carefully choose the installation site to meet following requirements:
l Mount the unit vertically
l Environment temperature: -10OC to +50OC
l Avoid placing close to any heating equipment
l Avoid water dripping or humid environment
l Avoid direct sunlight
l Avoid oil or salty corrosive gas
l Avoid contacting corrosive liquid or gas
l Prevent foreign dusts, flocks, or metal scraps from entering interior
l Away from radioactive matter or flammable material
l Avoid electric-magnetic interference (soldering or power machinery)
l Avoid vibration, if vibration can not be avoided, anti-rattler should be installed to reduce it.
l If inverter is installed in control panel, please tear off shield sticker of VAT20.
Additional cooling fan should be installed to lower the environment below 50OC
l Installation of the inverter must place the front side of inverter facing front and the top of
inverter towards up direction for better heat dissipation.
l Installation rooming must be compliant to following requirement.
12 cm
(min)
12 cm
(min)
12 cm
(min)
12 cm
(min)
5 cm
(min)
VAT 20
q < 50°C(1)
(2) (2)
Ventilation
Front view
Installation
direction
Side view
(1) Maximum temperature in the enclosure 50°C
(2) Keep 7 cm for following drives: N1K5, N2K2, X0K7, X1K5, X2K2

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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
U20 - N 0K7 - S
Series Power Voltage Power
Rated Option
N:200V, 1ph 0K2: 0.2kW S: Standard
0K4: 0.4kW model with
0K7: 0.7kW EMC filter
N:200V, 1ph/3ph I K5: 1.5kW SX: Standard
2K2: 2.2kW model without
X:400V, 3ph 0K7: 0.75kW EMC filter
1K5: 1.5kW
2K2: 2.2kW

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2.3. Specifications
Basic specifications, 200V series
Type No: VAT20- U20N0K2_ U20N0K4_ U20N0K7_ U20N1K5_ U20N2K2_
Suitable Motor Power Rating (kW) 0.2 0.4 0.75 1.5 2.2
Motor HP 1/4 1/2 1 2 3
Current A 1.4 2.3 4.2 7.5 10.5
Capacity kVA 0.53 0.88 1.6 2.9 4.0
Rated
Weight (kg ) 0.76 0.77 0.8 1.66 1.76
Input Voltage Max. Single phase 200/240V (+10% -15%),
50/60Hz (±5%) Single/Three phases 200-240V (+10% -15%),
50/60Hz (±5%)
Output Voltage Max. Three phase 200/240V +10%-15%
Dimensions (W x H x D) mm 72x132x118 118x143x172
EMC specification(1) Class A (single phase filter built in)
(1) Only for U20N_K_S type
Basic specifications, 400V series
Type No: VAT20- U20X0K7_ U20X1K5_ U20X2K2_
Suitable Motor Power Rating (kW) 0.75 1.5 2.2
Motor HP 1 2 3
Current A 2.3 3.8 5.2
Capacity kVA 1.6 2.9 4.0
Rated
Weight (kg ) 1.66 1.66 1.76
Input Voltage Max. Three phase 380/460V (+10% -15%), 50/60Hz (± 5%)
Output Voltage Max. Three phase 380/460V +10%-15%
Dimensions (W x H x D) mm 118x143x172
EMC specification(2) Class A (single phase filter built in)
(2) Only for U20X_K_S type

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Functional specifications
Type No: VAT20- U20N0K2S U20N0K4S U20N0K7S U20N1K5S U20N2K2S
U20X0K7S, 1K5S, 2K2S
Input Signal Type PNP type (SOURCE) input
Control Method Sinusoidal wave PWM control
Frequency range 0~120Hz 0~200Hz
Resolution Digital : 0.1Hz (0~99.9Hz) / 1Hz (100~120Hz)
Analog: 0.06Hz/60Hz
Keyboard setting Directly setup by ▲▼ buttons.
External signal setting 0~10V, 4~20mA , 0~20mA
Freq.
control
Other function Frequency upper and lower limit
Carrier frequency 4-8kHz 4-16kHz
Accelerate/decelerate time 0.1~ 999 Sec
V/F pattern 6 patterns
Torque control Torque boost level adjustable (manual torque boost)
Multi-function input 2 point, to be used as multi-speed
1(Sp1) / Jog / External emergency
stop / External reset
2 point, to be used as
multi-speed 1(Sp1) /
multi-speed 2 (Sp2) /
Jog / External
emergency stop /
External reset
Multi-function output 1a Relay terminal, to be setup as Fault / Running / Frequency.
Braking torque About 20%. Not allowable external
braking resistor. 100% with external resistor
General
control
Other function Decelerate or free run stop, Auto reset, DC braking frequency /
Voltage / Time can be setup by constants.
Display 3 digital LED display frequency / inverter parameter / fault
record / program version
Indication function 7 segments*3 indicate frequency / inverter parameter / fault
record / program version.
Operating temperature -10 to +40°C (without shield sticker: -10 to +50°C)
Humidity 0~95% RH non-condensing.
Vibration Under 1 G ( 9.8 m/s2)
EMC specification EN 5008-1, EN 5008-2, EN 50082-1, EN 50082-2, EN 50178
Protection level IP20
UL UL508C
Overload protection 150% for 1min.
Over-voltage DC voltage > 410V (200V series), DC > 800V (400V series)
Under voltage DC voltage < 200V (200V series), DC < 400V (400V series)
Momentary power-loss 0 ~ 2 sec : VAT20 can be restart by speed search
Protection
function
Stall prevention Accelerate / Decelerate / Constant speed
Output terminal short-circuit Electronic circuitry protection
Grounding fault Electronic circuitry protection
Protection
function Other function Heat sink protection , Current limit
Dimensions (WxHxD) mm 72x132x118 118x143x172
Installation Install by mounting screw or DIN rail (Option).

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2.4. Wiring
Moulded-Case Circuit Breaker / Contactor
l 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.
(2) Damage to the inverter caused bythe serial magnetic contactor, phase advancing capacitor,
or surge-protector in between the inverter and the motor.
Type No: U20N 0K2, 0K4, 0K7 1K5, 2K2
Type No: U20X 0K7, 1K5, 2K2
Moulded-case circuit breaker
Made by GE 20A 30A 30A
Magnetic Contactor
(MC)
Made by GE
CL00
Made by GE
CL00
Made by GE
CL00
Primary Circuit Terminal (TM1)
Wire dimension
2.5 mm2
Terminal screw M3
Wire dimension
4 mm2
Terminal screw M3
Wire dimension
2.5 mm2
Terminal screw M3
Signal Terminal (TM2)
1~11
Wire dimension 0.75mm2(#18 AWG), Terminal screw M3
l Please utilize three-phase squirrel-cage induction motor with appropriate capacity.
l If a inverter is used to drive more than one motor, the total capacity must be smaller
than the capacity of the inverter. Additional thermal relay must be installed in front of
every motor. Use the Fn_18 at 1.0 times of the rated value specified on the motor
nameplate at 50Hz, 1.1 times of the rated value specified on the motor nameplate at 60Hz.
l Do not install phase advancing capacitor, LC, or RC component between the inverter
and the motor.
T3
T1 T2
L1 L2

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Application and precautions of peripherals
Power Source
l Ensure to apply power source at correct rated voltage to prevent
form damaging the inverter.
l Circuit breaker must be installed in between the AC power supply
and the inverter.
Moulded-case circuit breaker (MCCB)
l Utilize appropriate circuit breaker suitable for the rated voltage
and current ratings of the inverter to switch ON/OFF the power
supply to the inverter and as a protection for the inverter.
l Do not operate the circuit breaker to switch ON or OFF the
inverter.
Earth leakage circuit breaker (Residual current device)
l Leakage circuit breaker should be added to prevent false
operation cause by leakage current and to ensure personnel
safety.
Magnetic Contact
l The Magnetic Contact can be omitted at ordinary operation. To
utilize external control, automatic restart, or breaking controller
the magnetic contact must be added at the primary side.
l Do not operate the magnetic contact to switch ON or OFF the
inverter.
Power improvement AC Reactor
l If large capacity power source is applied (over 600kVA),
additional AC reactor may be added to improve power factor.
Inverter
l Power supply input terminals L1 and L2 is not differentiated on
phase sequence, they can be arbitrarily connected. Their
connection may be exchanged.
l Output terminal T1, T2, and T3 should be connected to the U, V,
and W terminals of the motor respectively. If motor turns in
opposite direction of the inverter, simply exchanging two of three
wire connection may correct this problem.
l Output terminal T1, T2, and T3 must not be connected to power
source to prevent from damaging inverter.
l Grounding terminal. Properly ground the grounding terminal in
compliance to local codes
Power supply
Moulded-case
circuit breaker
or ground fault
interruptor
Electrical-
magnetic
contactor
AC reactor
for power
factor
improvement
VAT20
Inverter
Motor

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(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.
l Use a metal grounding plate and place the frequency inverter and the EMI filter on the plate.
l Use a screened motor cable with 4 connectors ( U,V,W,& Earth ), don’t use the shielding as
safety earth ( shield is high frequency earth )
l Remove painting around the two metal coupling nut holes. So that the metal coupling nuts (and
the shielding) make contact with the frequency inverter and the motor.
l Don't solder a conductor to the shielding (pig tail)
l Use a metal clamp to connect the shielding from the motor cable with the metal grounding plate.
Now there is a perfect high frequency earth connection between frequency inverter . grounding
plate and EMI filter.
l Keep the distance between frequency inverter and EMI filter as short as possible ( < 30cm )
otherwise use screened cable with a metal coupling nut and a metal clamp addle to connect the
shielded cable to the frequency inverter and metal grounding plate.
l The only earth connection between the LISN and the test plate should be via the EMI filter.
l Use a motor which equals the power rating or below of the inverter rating.
l Install a noise filter for inverter onto the output side of the primary circuitry can suppress conduc-
ting noise (for residential environment only). To reduce radio active noise, use a shielded wire
between motor and drive, this wiring should be away from control wiring for more than 30 cm.
Class B, Residential Environment

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Class A, Industrial Environment (only for drives with built-in EMC class A filter, U20----S)
Power part
l 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)
= √3 x Wire resistance (Ω/km) x wire length (m) x current x 10-3
(B) Control circuitry wiring must be separated and away from the primary circuitry control line and
other high-voltage or large-current power lines to avoid noise interference.
l To reduce the noise interference and avoid mistake operation, shielded twisted pair cable must
be used to wire the control circuitry. Please refer to following diagram. Connect the shielding
wire onto the grounding terminal.
Wiring distance must be under 50m.
(C) The grounding terminal of the inverter must be correctly grounded in compliance with 200V class
type three grounding.
l Grounding wire should be wired in accordance to electrical equipment (AWG) with the length
of the grounding wire as short as possible.
l The grounding wire of the inverter must not be grounded together with other large current
loading (such as soldering machine or large power motor). They should be grounded
separately.
Shielding Glove
To Inverter terminal
Connect to system grounding terminal Wrapped with
insulating tape
To control machine
Do not connect the shielding
wire at this end

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l 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.
Wiring Diagram
Terminations to Inverter must be made with either UL listed field wiring lug kits or UL listed crimp type
ring terminals
Note: only for U20-N1K5/N2K2 and U20-X0K7/X1K5/X2K2
l Other connections(external 24V supply)
Multifunction
input
Multifunction
output
For factory
test only
Grounding
2.5-10kΩ
Power Supply Input
Single phase drives:
L1-L2 or L1-L3
Three phase drives:
L1-L2-L3
Braking Resistor
(option)

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VAT20 series inverter terminal descriptions
Primary circuitry terminal black (TM1) descriptions
Terminal symbol Function description
L1 (R)
L2 (S)
L3/N (T)
Primary power source input to drive
Single phase (1ph) drives: L1, L2 or L, N
Three phase (3ph) drives: L1, L2, L3
P
R
External braking resistor terminals
(Only for U20-N1K5/N2K2 and U20-X0K7/X1K5/X2K2)
T1 (U)
T2 (V)
T3 (W)
Inverter output to motor
* Tightening torque for TM1 is 0.98, or 12 LBS-IN (U20-N0K2/N0K4/N0K7).
* 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
1
2
TRIP
RELAY
Fault relay output terminal
Connection point rated capacity 250VAC/1A ( 30VDC / 1A )
3 FWD
4 REV
Operation control terminals (refer to Fn_03)
5 + 12V Common point of terminal 3 / 4 / 6 / 7
6 SP1
7 RESET
Multifunction input terminals (refer to Fn_19)
8 +10V Power terminal of potentiometer ( Pin 3 )
9 Analog input point Analog frequency signal input terminal ( Pin 2 of
potentiometer or positive terminal of 0~10V / 4~20mA /
0~20mA)
10
0V
(FM -) Analog common point Analog signal common point ( Pin 1 of potentiometer or
negative terminal of 0~10V / 4~20mA / 0~20mA )
11 FM+ Analog output positive
connection point Analog frequency signal output terminal
Output terminal signal is 0 ~ 10VDC/Fn6
* Tightening torque for TM2 is 0.4 Nm or 5.03 LBS-IN.
* Wire voltage rating must be a minimum of 300V for 200V inverters and minimum 600V
for 400V inverters
* Control wiring should not run in the same conduit or race way with power or motor wiring
* Single Input and Output Terminals (TM2) Ratings are all Class 2

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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
Length
Type D E F G
U20N0K2
U20N0K4
U20N0K7
8.2 118 61 72
NOTE
For safety reason, we strongly
recommend users to remove the M4
‘green’ grounding screw, then screw
the enclosed ‘metal frame grounding
terminal’ on the same location to make
a grounding bar to ensure good earth
protection.
Plaquette de terre (voir note)
Terre
Grounding (see note)
Grounding

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Frame 2: U20N1K5, U20N2K2, U20X0K7, U20X1K5, U20X2K2
Plaquette de terre (voir note)
M4 terre
NOTE
For safety reason, we strongly
recommend users to remove the M4
‘green’ grounding screw, then screw
the enclosed ‘metal frame grounding
terminal’ on the same location to make
a grounding bar to ensure good earth
protection.
Grounding (see note)
Grounding

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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.