GE VAT20 Instruction Manual

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

1

VAT20

Table of Content s

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 Periph erals

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

2

1. Foreword

To fully employ all functions of the inver ter, and to en sure 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

CAUTION

Personnel injury may be resulted by improper operation.

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 bef o re installat ion

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.

3

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

4

When power is turned ON

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), the inverter does n ot have enough s torage 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) W hen F_10=1 and the external switch (FW D/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.

WARNING

Under Operatio n

Do not switch ON or OFF motor at the middle of operation. Otherwise, the inverter
over-current break-down may be resulted.

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.

WARNING

WARNING

5

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.

Do not proceed with disassemble or examination procedure before ensuring that the
power is off and the Power LED extinguished.

During examinatio n and maintenance

CAUTION

CAUTION

CAUTION

Inverter environment should be within temp: –10 OC ~ +40 OC, humidity under 95% RH
without condensing.

CAUTION

After the removal of shield sticker, the environment temperature should be within

O

C and +50OC and humidity under 95% RH without condensing. Besides, the

-10
inverter should be free from water dripping or metal dust.

6

1.2. Precautions of operation environment

oil

Avoid direct sunlight

Keep away from

corrosive gas or liquid

Keep away from salty

environment

Keep away where rain or
dripping water may get
into the inverter

Keep away from oil

grease and gas

Avoid metal dust and

dusty environment

Avoid massive vibration

Avoid heat

Keep away from high
electrical-magnetic wave
or ultra-high wave.

Keep away from

radio-active matter

7

Avoid where environment

temperature is too high

Keep away from

flammable material

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: -10
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.

Correct alignment Correct alignment

Additional cooling fan should be installed to lower the environment below 50

Cooling fan

Correct alignment Wrong alignment Wrong alignmentCorrect alignment

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.

O

C to +50OC

Cooling fan

Cooling fan

Cooling fan

O

C

q

< 50°C

(1)

12 cm

(min)

VAT 2 0

Installation

direction

12 cm

(min)

12 cm

(min)

Ventilation

(2) (2)

Front view

(1) Maximum temperature in the enclosure 50°C
(2) Keep 7 cm for following drives: N1K5, N2K2, X0K7, X1K5, X2K2

12 cm

(min)

5 cm
(min)

Side view

8

2.2. Type number definitions

Inverter Type → U20N0K7S (for example)

Input Power Rating
Output Rating

→ I/P: AC 1ph 200 ~ 240V 50/60Hz
→ O/P: AC 3ph 0 ~ 240V 1.6kVA 4.2A

U20

Series Power Voltage Power

0K4: 0.4kW model with
0K7: 0.7kW EMC filter

2K2: 2.2kW model without
1K5: 1.5kW

2K2: 2.2kW

-

N 0K7 - S

Option

Rated

N:200V, 1ph

N:200V, 1ph/3ph
X:400V, 3ph

0K2: 0.2kW S: Standard

I K5: 1.5kW SX: Standard
0K7: 0.75kW EMC filter

9

2.3. Specifi cations

Basic specifications, 200V series

Type No: VAT20-

Suitable Motor Power Rating (kW) 0.2 0.4 0.75 1.5 2.2

Rated

Input Voltage Max. Single phase 200/240V (+10% -15%),

Output Voltage Max. Three phase 200/240V +10%-15%
Dimensions (W x H x D) mm 72x132x118 118x143x172
EMC specificati on

(1) Only for U20N_K_S type

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
Weight (kg ) 0.76 0.77 0.8 1.66 1.76

(1)

Class A (single phase filter built in)

U20N0K2_ U20N0K4_ U20N0K7_ U20N1K5_ U20N2K2_

Single/Three phases

50/60Hz (±5%)

200-240V (+10% -15%),
50/60Hz (±5%)

Basic specifications, 400V series

Type No: VAT20-

Suitable Motor Power Rating (kW) 0.75 1.5 2.2

Rated

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 specificati on

Motor HP 1 2 3
Current A 2.3 3.8 5.2
Capacity kVA 1.6 2.9 4.0
Weight (kg ) 1.66 1.66 1.76

(2)

Class A (single phase filter built in)

U20X0K7_ U20X1K5_ U20X2K2_

(2) Only for U20X_K_S type

10

Functional specifications

Type No: VAT20-

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)

Freq.

control

General

control

Keyboard setting Directly setup by ▲▼ buttons.
External signal setting 0~10V, 4~20mA , 0~20mA
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

Multi-function output 1a Relay terminal, to be setup as Fault / Running / Frequency.
Braking torque About 20%. Not allowabl e external

Other function Decelerate or free run stop, Auto reset, D C brak ing frequency /

Display 3 digital LED display frequency / inverter parameter / fault

Indication function 7 segments*3 indicate frequency / inverter parameter / fault

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

Protection

function

Protection

function

Dimensions (WxHxD) mm 72x132x118 118x143x172
Installation Install by mounting screw or DIN rail (Option).

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
Stall prevention Accelerate / Decelerate / Constant speed
Output terminal short-circuit Electronic circuitry protection

Grounding fault Electronic circuitry protection
Other function Heat sink protection , Current limit

U20N0K2S U20N0K4S U20N0K7S U20N1K5S U20N2K2S

U20X0K7S, 1K5S, 2K2S

Analog: 0.06Hz/60Hz

2 point, to be used as
1(Sp1) / Jog / External emergency
stop / External reset

braking resistor.

Voltage / Time can be setup by constants.

record / pro gram version

record / pro gram versio n.

multi-speed 1(Sp1) /

multi-speed 2 (Sp2) /

Jog / External

emergency stop /

External reset

100% with external

resistor

11

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 by the 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

Magnetic Contactor

(MC)

Primary Circuit Terminal (TM1)

L1 L2

T1

T2

Signal Terminal (TM2)

1~11

T3

Wire dimension

Terminal screw M3

20A

Made by GE

CL00

2.5 mm

Wire dimension 0.75mm2(#18 AWG), Terminal screw M3

2

Wire dimension

Terminal screw M3

30A

Made by GE

CL00

4 mm2

30A

Made by GE

CL00

Wire dimension

2.5 mm2

Terminal screw M3

l Please utilize three-phase squirrel-cage induction mot or 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.

12

Application and precautions of peripherals

Power supply

Moulded-case
circuit breaker
or ground fault
interruptor

Electrical­magnetic
contactor

AC reactor
for power
factor
improvement

VAT20
Inverter

Motor

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 r atings of the invert er to switch ON/OFF t he 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 Magne tic Contact can be omitt ed at ordinary operatio n. To

utilize exter nal control, automatic restart, or breaking controller
the magnetic contact must be added at the primary side.

l Do not opera te the magnetic contact to s witch 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 term inal T1, T2, and T 3 s ho uld be co nnected to the U , V,

and W terminals of the motor respectively. If motor turns in
opposite direction of the inver te r, sim pl y exchanging two of thr ee
wire connection may correct this problem.

l Output te rminal T 1, T2, and T 3 mu st n ot be conne cted t o po wer

source to prevent from damaging inverter.

l Grounding terminal. Properly ground the grounding terminal in

compliance to local codes

13

(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 th e
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

14

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

= √ 3 x Wire resistance (Ω/km) x wire length (m) x current x 10

(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.

To Inverter terminal

Connect to system grounding terminal

Shielding

Glove

Wrapped with
insulating tape

To control machine

Do not connect the shielding
wire at this end

(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.

15