Westpow STR022A-3, STR.A Series, STR030A-3, STR037A-3, STR045A-3 User Manual

ISO9001ISO9001

A/B Series User Manual A/B Series User Manual

V6.3V6.3

UNITUNIT

Xi'an Westpow Power Electronics Co.,Ltd.

2 Xibu Road New Industry Park GaoXin Borough Xi'an 710119 P.R.China

ADD

ADD 2 Xibu Road New Industry Park GaoXin Borough Xi'an 710119 P.R.China

TEL 029-88889286 88889256 88889356 88889257-801

Technique service hot-line:029-88889352 88889356

FAX 029-88889293

Email westpow@163.com

http://www.westow.com or http://www.westpow.cn

In the interest of product improvement, specifications are subject to change without notice. All rights reserved. In the interest of product improvement, specifications are subject to change without notice. All rights reserved.

..

7.5KW-500KW/380V7.5KW-500KW/380V

,

XI AN WESTPOW POWER ELECTRONICS CO.,LTD

User ManualUser Manual

User ManualUser Manual User ManualUser Manual

Manual File Number:STR2000B-V6.3-02

Version Number:V6.3

Revision Number:02

Issuance Date:2009-7-18

This manual is applicable to A and B serial.

This manual is intended to guide qualified personnel in the installation and

operation of this product.

Final interpretation right to this manual is belonged to Xi'an Westpow Power

Electronics Co.,Ltd

In no event, Xi'an Westpow Power Electronics Co.,Ltd be responsible for

reproduction and issued made by the third party.

Although the information in this manual is checked carefully, but there may be

some mistakes. If you find them, please phone us as soon as possible.

Because this product is improved continuously, so user should regard this manual

as the reference.

Pay attention to the Note, warning and tips mentioned in this manual.

Only professional technician can be permitted to install or guide the installation of

this product.

Ensuring the power and specification of the motor is matched to those of this

product;

The capacitor is prohibited strictly to be connected with the output terminal

(U.V.W) of this production;

The cables connecting to the input and output terminals of this product should be

packed well by insulating tape;

The shell of this product must be connected to the ground reliably;

Make sure the power of this product must be cut off before it is maintained.

This manual is packed with the product. Operator must take it as the guide of this

product. Please read it carefully before using this product.

Warning Tips and NotWarning Tips and Not

Attention: Something can lead to personal injury or death

Warning: Something can lead to damage of the device or software.

Note: Remind user something related.

1 1

Function and Feature ............................................................................Function and Feature ............................................................................

Product Type and Inspection..................................................................Product Type and Inspection..................................................................

Environment and Installation...................................................................Environment and Installation...................................................................

Environment..............................................................................................

Installation.................................................................................................

Operating Principle..............................................................................Operating Principle..............................................................................

Terminals and Wiring............................................................................ Terminals and Wiring............................................................................

Wiring Schematic......................................................................

External Terminals Explain..............................................

Main Circuit Wiring..................................................................................

Control Circuit Terminals........................................................................

Control Mode..........................................................................................

Voltage Ramp............................................................................................

Current Limit............................................................................................

Jogging...........................................................................................

Stop Mode................................................................................................

Keyboard..................................................................................................Keyboard..................................................................................................

Keyboard Description...............................................................................

Key Function..............................................................................................

Parameter Function Table.........................................................................Parameter Function Table.........................................................................

Parameter Setting.......................................................................................Parameter Setting.......................................................................................

Starting Mode.............................................................................................

(Voltage Ramp mode) Setting and Inquiry...............................................

(Current Limit mode) Setting and Inquiry................................................

(Jogging mode) Setting and Inquiry...........................................................

Control Mode.........................................................................................

Parameter Range.......................................................................................

Special Parameter......................................................................................

Working State.............................................................................................

1 1

User ManualUser Manual User ManualUser Manual

1 Function and Feature1 Function and Feature

10 10 28 28

Rate Current Adjust..............................................................................Rate Current Adjust..............................................................................

Display Current Adjust...........................................................................Display Current Adjust...........................................................................

Fault Protection and Display..................................................................Fault Protection and Display..................................................................

Fault Display and Solution....................................................................

Overload Protection and Protection Level...........................................

Test running............................................................................................Test running............................................................................................

Appendix 1. Specification and Type....................................................

Appendix 2: A Series Appearance Dimension

Appendix 3: B Series Appearance Dimension

Appendix 4: G Series Appearance Dimension

Appendix 5: A Series Typical Wiring Diagram

Appendix 6: B Series Typical Wiring Diagram

Appendix 7: G Typical Wiring Diagram Series

STR series digital AC motor soft starter is new type starting equipment

with advanced international level. This product designed and manufac-

tured based on the technique of power electronics microprocessor and

modern control theory. This product can limit the starting current

efficiently when the asynchronous motor starts. It is widely applied in

the field such as winding machine, pump, transition and compressor etc.

It is the ideal product to replace the traditional voltage dropping start

equipment such as star/triangle conversion, self-coupling voltage drop-

ping, magnetic control dropping voltage etc.

Function:Function:

Reduce the starting current of motor; reduce capacity of power

distribution; reduce the investment cost.

Reduce the start stress; prolong the operation lifetime of the motor and

related equipments.

For smooth and steady starting and soft stopping, the Water Hammer

and surge can be avoided.

There are several sorts of starting mode, wide range setting of the

current and voltage. It can be used in many load conditions, so the

technic can be improved.

technic can be mproved.

For perfect and reliable protection, the safeguard of the motor and

relative equipment can be achieved effectively.

It can be used in the state in which motor may star and stop frequently.

i

FeatureFeature

Starting ModeStarting Mode

For different load characteristics, different starting mode and related

parameters can be selected. So the best starting effect can be gained.

OPERATION

MENU

01

User ManualUser Manual User ManualUser Manual

Technical PerformanceTechnical Performance

The higher performance microprocessor and software are used, so the

control circuit is simplified. The best perform speed can be gained

without the adjustment of the circuit parameters.

ReliabilityReliability

All the electronic components of this product are selected strictly.

Additionally, the main control board is tested in high temperature

environment above seventy-two hours. The reliability of this product

can be guaranteed.

ConfigurationConfiguration

The modularization configuration and up-in-down-out wiring mode

are adopted. It is easy to use and integrate.

Multi-ProtectionMulti-Protection

The motor protection circuit is not be added if the single product is in

used. Because this product have multiple protection function such as

Overload, Line Fault, Over Current, Overheating and so on.

KeyboardKeyboard

Operation of the keyboard is easy. User can set and modify the

parameters ( for example: starting, stopping, running and protection )

by this keyboard according to the different load condition.

Analog signalAnalog signal

4-20mA output analog signal is provided.4-20mA output analog signal is provided.

Actual power settingActual power setting

2 Product Type and Inspection2 Product Type and Inspection

Each STR series soft starter is tested. Only the starters passing the func-

tion and running test can leave the factory. After receiving the product, the

user should inspect it according the steps described below. Please notify

the supplier immediately if you find any problem.

Check the nameplateCheck the nameplate

It is the responsibility of the user to thoroughly inspect the equipment

before accepting the production. Check the item(s) nameplate catalog

number against the purchase order. Make sure that the equipment you

received is matched with the product you ordered.

STR SERIES MOTOR SOFT STARTERSTR SERIES MOTOR SOFT STARTER

Type STR

Voltage 3 380V AC

Power 75KW

Factory Number

Date

Xi'an Westpow Power Electronics Co., LtdXi'an Westpow Power Electronics Co., Ltd

STRSTR

Voltage level: 3- 380V 6-660VVoltage level: 3- 380V 6-660V

Design Code: A-A series B-B seriesDesign Code: A-A series B-B series

Motor Power: 075 means 75KWMotor Power: 075 means 75KW Product Name: Westpow soft starter Product Name: Westpow soft starter

When the rate power of Soft Starter is higher than the power of actual

load, soft starter can be matched to the actual load by modifying the

actual current parameter. So the accuracy about starting running and

protection can be guaranteed.

OPERATION

02

MENU

Inspect whether or not the product is damaged through the delivery, for

example: inner parts fall off, she11 is deformed or depressed, the

wires is loose etc.

Quality certificate and user manual: the package of each soft start

includes quality certificate and user manual

OPERATION

03

MENU

User ManualUser Manual User ManualUser Manual

3 Environment and Installation3 Environment and Installation

3.1 Environment3.1 Environment

The environment is important to the equipment life. So please install

the soft starter on the site described below

Operation condition for the regular productsOperation condition for the regular products

Urban power, self-provided substation, diesel

Power Supply: Power Supply:

Three-phase AC: Three-phase AC:

Motor:Motor:

Start frequency:Start frequency:

Cooling: Cooling:

IP Code:IP Code:

Environment : Environment :

Structure Form: Structure Form:

Urban power, self-provided substation, diesel

generating sets

380V or 660V or 1140V (-10%, +15%), 50Hz.380V or 660V or 1140V (-10%, +15%), 50Hz.

(note Voltage level should be matched to the rate

voltage of the actually motor. User should

explain the voltage level in the purchase

order if it is special.)

Squirrel cage asynchronous motor. Squirrel cage asynchronous motor.

(Please explain in the purchase order if it is special) (Please explain in the purchase order if it is special)

Less than 20 times per hour for Standard products Less than 20 times per hour for Standard products

(Please explain in the purchase order if the

motor should be start more frequent)

Natural air-cooled or Fan air coolingNatural air-cooled or Fan air cooling

Ip20Ip20

If the altitude is above 2000 M, user should

select the higher power equipment

Environment Temperature: -25 to +40 .Environment Temperature: -25 to +40 .

Relative humidity: 95% (20 5 )Relative humidity: 95% (20 5 )

Non-condensing, no inflammable explosive

gases, no conducive dust.

Install in an enclosure with good ventilation. Install in an enclosure with good ventilation.

The vibration is less than 0.5GThe vibration is less than 0.5G

For the A series product, there is inner bypass

contactor

For the B series product, bypass contactor

should be allocated by user

Special conditionsSpecial conditions

If unconventional products using in the special conditions is needed,

please explain in the purchase order

3.2 Installation3.2 Installation

Direction and DistanceDirection and Distance

The product must be vertically installed. There should be enough

space to dissipate the heat(show in figure 3-1). For the cabinet

product, there should be a certain distance between back door of the

product and wall. Therefore it is easy to maintain .

STRSTR

Soft starter

Figure 3-1

Cabinet installationCabinet installation

If the product is installed in the cabinet, make sure there are good

ventilation in the cabinet. Two products can be installed vertically

or horizontally. Horizontal layout shows in Figure 3-2. Vertical

layout shows in Figure 3-3. User can adopt any of them.

Note: If the vertical layout is adopted (especial in fan air cooling mode), a

clapboard should be installed between them to avoid that the upper

starter is affected by heat generated by the lower starter.

OPERATION

MENU

04

OPERATION

MENU

05

User ManualUser Manual User ManualUser Manual

Hot Air Out

STR STR

Figure 3-2

Hot Air Out

Soft starter

Cool Air in

Hot Air Out

Figure 3-3

Hot Air Out

Ventilation

4 Operating Principle4 Operating Principle

There are three pairs of anti-parallel thyristors connected to the stator of

motor. Using the electric switch feature of the thyristors, the voltage of the

motor can be controlled by changing the triggering angel of the thyristors.

The triggering angel of the thyristors is controlled by microprocessor. So

the motor can be started softer and smooth. After the equipment is up to

full voltage, it outputs a bypass signal. User can use this signal to control

the bypass contactor to supply the motor. See figure4-1.

MotorMotor

380V / 660V/1140V380V / 660V/1140V

Voltage testVoltage test

Drive circuitDrive circuit

Current testCurrent test

OPERATION

MENU

Figure 4-1

06

OPERATION

MENU

07

User ManualUser Manual User ManualUser Manual

5 Wiring and Terminal5 Wiring and Terminal

5.1 Wiring schematic5.1 Wiring schematic

QF

K

RUN

STOP

COM

two line controltwo line control

K

RUN SS

COM

two line controltwo line control

R

S

T

RUN

STOP

SS

JOG

RET

COM

I

COM

I

KeyboardKeyboard

U1

V1

W1

K24 K21

K22

K14 K11

K12

+12V

OC

COM

U

V

W

Control terminal for bypass

contactor

5.2 External Terminals Explain5.2 External Terminals Explain

Terminal NameTerminal Name

R.S.TR.S.T

Main

circuit

U.V.WU.V .W

U1.V1.W1U1.V1.W1

SSSS

RUNRUN

STOPSTOP

JOGJOG

Digital inputDigital input

RETRET

COMCOM

+12V+12V

OCOC

COMCOM

Digital outputDigital output

Control circuitControl circuit

II

COMCOM

Analog

output

Analog

output

K14K14

K11K11

K12K12

Terminal functionTerminal function

inputinput

output output

bypassbypass

soft stopsoft stop

start the motorstart the motor

stop the motorstop the motor

jog the motorjog the motor

reset the faultreset the fault

CommonCommon

Inner powerInner power

Start completeStart complete

commoncommon

4-20mA output

load input resistance<400

4-20mA output reference4-20mA output reference

NONO

NCNC

COMCOM

fault

output ter

minals

Table 5-1

ExplanationExplanation

connect to three-phase power source

through breaker (QF)

connect to three-phase asynchronous

motor

see figure F-6see figure F-6

connect SS and COM directly, soft stop connect SS and COM directly, soft stop

connect RUN and COM directly, start connect RUN and COM directly, start

connect STOP and COM directly, stop connect STOP and COM directly, stop

connect JOG and COM directly, jogconnect JOG and COM directly, jog

connect RET and COM directly,

reset the fault

logic groundlogic ground

Inner power: DC12V,100mAInner power: DC12V,100mA

OC is on after start completedOC is on after start completed

Inner power referenceInner power reference

Im:motor output current(A)

Ie I-4Ie I-4

Im= Im=

In Fault K14-K12 close

K11-K12 open

contacts capacity AC:10A/250V

DC:10A/30V

Im:motor output current(A)

Ie:motor rate current(A)

88

I: 4-20mA output current(A)

Figure 5-1

Note:

1. There are two wiring ways to control the soft starter to start and stop.

They are three-line and two-line wiring. ( See and in the figure above ).

Connect according the figure free stop

Connect according the figure soft stop

2. In the A series product, there is no terminals U1,V1,W1. Because there is inner

bypass contactor.

OPERATION

08

MENU

K24K24

Relay outputRelay output

K21K21

K22K22

Note There are two connecting mode, see figure 5-1

Note Fault and bypass output terminals are all dry contact.

NONO

NCNC

COMCOM

bypass

terminals

after start complete K24-K22 close

K21-K22 open

contacts capacity AC:10A/250V

DC:10A/30V

OPERATION

MENU

09

User ManualUser Manual User ManualUser Manual

5.3 Main Circuit Wiring5.3 Main Circuit Wiring

There are six main circuit terminals for A series product. R. S. T ( power

line) and U. V. W(motor line).See figure F-5

There are nine main circuit terminals for B series product. R. S. T(Power

line) and U. V. W(motor line) and U1.V1.W1(bypass line). See figure F-6

5.4 Control Circuit Terminals5.4 Control Circuit Terminals

There are control circuit terminals on the main control board. This control

circuit terminal provides convenience for the user to realize remote con-

trol and external signal control. User can connect the corresponding

terminals according to the actual state. By setting the parameter, user can

select keyboard mode or terminal mode to control starting and stopping.

There are two terminal rows, X1(10 bit) and X2(6 bit). For detail see

figure 5-2 below.

Start

Output

Common Common

RETRET

COMCOM

Output

4-20ma

Soft stopSoft stop

X1X1

Free stopFree stop

Start Start

RUN RUN

SSSS

11 22 33 44 55 66 77 8 8 9 9 1010 0101 02 02 03 03 0404 0505 0606

Reset Reset

Jog Jog

STOPSTOP

JOGJOG

Start

completed

COMCOM

II

OCOC

+12V+12V

X2X2

Bypass Bypass

K24K24

K22K22

FaultFault

K21K21

K14K14

K12K12

K11K11

6 Control mode6 Control mode

This product has three start modes: Current Limit and Voltage Ramp and

Jogging. These start modes is independent. Only one of them can be

chosen. Text below introduce that the different of them and which mode

should be selected.

6.1 Voltage Ramp6.1 Voltage Ramp

The waveform of the voltage shows in Figure 6-1. U1 in figure is initial

output voltage. When starting, the output voltage is up to U1 immediately,

and then ramps up gradually according to the parameter Start Time t

setting in advance. Then the motor accelerates continuously. When the

output voltage reaches the rate value Ue, the motor reaches the rate speed.

Starting process finish. The Initial Voltage U1 and the Start Time t can be

set according to the load. The range of U1 is 5~75%Ue, and the range of it

is 1~200s.

This mode is used in the state with large inertia load, or in the state in

which the current is not the important but the stability is important. Using

th mode, the mechanical stress and starting striking may decreased

greatly. The bigger the initial voltage is, the more the initial torque and

starting striking is. The time of starting is related to the parameter of

tarting ime and load. It is unconcerned with current limited. For

detail see chapter 8 and chapter 9.

Note: For detail see table 5-1Note: For detail see table 5-1

OPERATION

10

MENU

Figure 5-2

Voltage Ramp startVoltage Ramp start

Figure 6-1

OPERATION

MENU

11

User ManualUser Manual User ManualUser Manual

6.2 Current Limit6.2 Current Limit

At the Current Limiting mode, the output voltage increases quickly until

the output current reaches the limited current value Im. See figure 6-2.

And then the output current maintains below this limited value. Then the

output voltage is increased gradually, and the motor accelerate gradually;

when the motor's speed is close to the rate speed the output current

decreases quickly to the rate value Ie, the starting process finish . The

limited value can be set according to the load instance. The range of this

parameter is 0.2-4Ie.

This mode is used in the state in which the current is very important.

Special in the state in which the grid capacity is small. The parameter of

the Current Limit Multiples should be set 2.5-3. If this value is small, the

starting will be abnormal. At this mode, the time of starting is concerned to

the parameter of the Current Limit Multiples. The more this value is, the

shorter the time of starting is,vice versa. For detail see chapter 8 and

chapter 9.

II

Current Limiting startCurrent Limiting start

ÏÞÁ÷Æð¶¯

Im1Im1 Im2 Im2

Im3Im3

Ie Ie

tt

6.3 Jogging6.3 Jogging

At this start mode, the output voltage reaches the initial voltage U1

quickly, and remains unchanged. Changing the U1, the output voltage and

torque of the motor will change corresponding. (See figure 6-3). It is

convenient to judge the director of the motor.

UU

U1U1 U1U1

U1U1

tt

Figure 6-2

6.4 Stop Mode6.4 Stop Mode

There are two stop mode, user can set this parameter according to load and

working condition.

Free StopFree Stop

When receiving the stop signal, the terminals K22,K24 is open, the bypass

contactor is disconnect. The trigger signal of the SCR module is blocked

at the same time. Motor inertia stop according the load.

OPERATION

MENU

Figure 6-2

12

Soft StopSoft Stop

At this stop mode, when receiving the stop signal, the bypass contactor

is disconnected. At the same time, motor is controlled through SCR. The

output voltage decreases gradually. At last motor stop completely. The

Stop Time is related to the parameter of load and soft stop time factor.

To gain the smooth stop effect, the oft top ime should be set

carefully.

OPERATION

MENU

13

User ManualUser Manual User ManualUser Manual

7 Keyboard7 Keyboard

7.1 Keyboard Description7.1 Keyboard Description

There is a Keyboard on the front of the soft starter. User can operate it to

display data, save data, check data, display fault, reset fault, start or stop

the motor etc. The construction of the keyboard shows in figure 7-1.

Data showData show

UnitUnit

Modify keyModify key

Stop key ( Reset key )Stop key ( Reset key )

Figure 7-1

Voltage Ramp ModeVoltage Ramp Mode

Current Limit ModeCurrent Limit Mode

Program keyProgram key

Start keyStart key

Function showFunction show

I I

On Ready state, press this key, release it 5 minutes later,

(program) ( program )

(Increase) (Increase)

(decrease ) ( decrease )

Note:

1. On Setting state, press PRG key or STOP key, the modified data are saved

1. On state, press PRG key or STOP key, the modified data are saved

Setting

automatically.

2. If user selects external control, the keyboard can be taken off after all the

parameters are set well.

On Ready state, press this key, release it 5 minutes later,

system enter Setting state. On Setting state, user can

switch among different parameter groups

On Setting state, user can increase the parameter value

by pressing this key.

On Setting state, user can decrease the parameter value

by pressing this key

7.2 Key Function7.2 Key Function

There are five key on the keyboard: (start) (stop) (Program

(Increase) (Decrease)

When the system is on Ready state , press this key, the

motor start according the start mode user set.

When the system is on Starting or Running state, press this

key, the motor stop, then the system enter Ready state .

When the system is on Setting state, press this key, system

enter Ready state , and the parameters user modified

is saved at the same time. When the system is on Fault state,

the fault code shows on the keyboard. Press this key, release

it 5 minutes later, system enter Ready state if the fault

is deal with.

OPERATION

MENU

( ) start( start )

(stop) (stop)

14

OPERATION

MENU

15

User ManualUser Manual User ManualUser Manual

8 Parameter Function Table8 Parameter Function Table

FunctionFunction

Name Name

Starting ModeStarting Mode

Range and meanRange and mean

1.Voltage Ramp

2.Current Limit

3.Jogging

Default

Value

Table 8-1

ValidityValidity

Note:

: It is valid at Voltage Ramp mode.

: It is valid at Current Limit mode.

: It is valid at Jogging mode.

Parameter top ode elect is valid when control mode is keyboard. If

the external control mode is selected, stop mode is determined by wirring.

For detail see figure 5-1

If the parameter SCR trigger select is set 3, displays in the

keyboard, and the product can't monitor the state. There are not protection.

Initial VoltageInitial Voltage

5%~75% of Supply Voltage 5%~75% of Supply Voltage

Jog VoltageJog Voltage 5%~75% of Supply Voltage 5%~75% of Supply Voltage

4

5

6

7

8

9

10

11

12

13

14

15

Ramp TimeRamp Time 1~120 S1~120 S

Curr. Limit LevelCurr. Limit Level 20%~400% of rated current20%~400% of rated current

Curr. Limit timeCurr. Limit time

1~120 S1~120 S

Over Curr. ProtectOver Curr. Protect 400%~600% of rated current400%~600% of rated current

Current Unbalance

Factor

Control ModeControl Mode

SCR Trigger SelectSCR Trigger Select

Start Overload LevelStart Overload Level

Over Curr. at

running protect

Stop ode electStop ode elect

Soft Stop Time FactorSoft Stop Time Factor 1 10~ 1 ~ 10

Rate CurrentRate Current

5%~50% of present current5%~50% of present current

1: Keyboard

2: External

3: Keyboard and External

1.Block trigger

2.not block trigger

3.Block trigger, show b-p

1-81-8

20%~400% of rated current20%~400% of rated current

1.Free Stop

2.Soft Stop(voltage ramp)

See chapter9.7 and 10 See chapter9.7 and 10

3

4

NameplateNameplate

¡÷ ¡î

16

17

OPERATION

MENU

FaultFault See chapter12See chapter12

Ready StateReady State Can't modifyCan't modify

16

OPERATION

MENU

17

User ManualUser Manual User ManualUser Manual

9 Parameter setting9 Parameter setting

9.1 Starting mode9.1 Starting mode

On Ready state , press key and release it 5 minutes later ( or

press and key at the same time), system enter the Starting mode

selecting state . Then press or key to modify the parameter

to set the Starting Mode Code . If 1 is selected, the lamp on the

top-left of the keyboard Voltage Ramp is light , the Starting mode is

Voltage Ramp. If 2 is selected, the lamp on the top-left of the

keyboard Current Limit is light, the Starting mode is Current Limit.

If 3 is selected, the Starting Mode is Jogging. Any lamp on the left of

keyboard is not light. After the starting mode parameter is selected, press

key, other parameter related to the selected Starting mode can be

modified.

For Example: For Example:

Press

(maintain 5 second)

Or press Or press

Starting mode Starting mode

press or press or

Figure 9-1

Note:

User can select the Starting mode according to the load type. For the normal load,

any of two modes can be adopted. But for big inertia load type, the Voltage Ramp

mode is the best choice. The default value is , that is Voltage Ramp mode.

Voltage Ramp Voltage Ramp

Current LimitCurrent Limit

JoggingJogging

9.2 (Voltage Ramp mode) Setting and Inquiry9.2 (Voltage Ramp mode) Setting and Inquiry

If the Voltage Ramp mode is selected, the flow chart of the related

parameters setting is show in figure 9-2

Voltage Ramp modeVoltage Ramp mode

PressPress

Initial voltage of rampInitial voltage of ramp

PressPress

Start time of rampStart time of ramp

PressPress

Over current protect valueOver current protect value

PressPress

Current unbalance factorCurrent unbalance factor

PressPress

Control mode selectControl mode select

PressPress

SCR trigger selectSCR trigger select

PressPress

Start overload levelStart overload level

PressPress

Over current protect at runningOver current protect at running

PressPress

Stop mode selecStop mode selec

PressPress

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

OPERATION

MENU

Soft stop

factor

PressPress

oror

to modifyto modify

PressPress

Figure 9-2

Note:

1. When any of one parameter is modified, press whether key (change page)

or key( return Ready state ), the modified parameters will be saved

automatic.

2. When modify any of the parameter, press key to return the Ready state

18

OPERATION

MENU

19

User ManualUser Manual User ManualUser Manual

9.3 (Current Limit mode) Setting and Iinquiry9.3 (Current Limit mode) Setting and Iinquiry

If the Current Limit mode is selected, the flow chart of the related

parameters setting is show in figure 9-3

Current Limit modeCurrent Limit mode

PressPress

Current Limit at starting Current Limit at starting

PressPress

Start TimeStart Time

PressPress

Over Current protect Over Current protect

PressPress

Current Unbalance FactorCurrent Unbalance Factor

PressPress

Control mode selectControl mode select

PressPress

SCR Trigger selectSCR Trigger select

PressPress

Start Overload levelStart Overload level

PressPress

Over Current protect at runningOver Current protect at running

PressPress

Stop Mode selectStop Mode select

PressPress

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

9.4 (Jogging mode) Setting and Inquiry9.4 (Jogging mode) Setting and Inquiry

The Jogging mode is used in the state of device location, the motor

director judging and the 3-phase current balance testing. In Jogging mode,

the voltage maintain unchanged. The flow chart of the related parameters

setting is show in figure 9-3

Jogging modeJogging mode

PressPress

Jogging voltageJogging voltage

PressPress

Over Current protect Over Current protect

PressPress

Current Unbalance Factor Current Unbalance Factor

PressPress

Control mode selectControl mode select

Note:

1. When any of one parameter is modified, press whether key (change page)

or key( return Ready state ), the modified parameters will be saved

automatic.

2. When modify any of the parameter, press key to return the Ready state

PressPress

Figure 9-4

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

oror

to modifyto modify

PressPress

Soft stop

factor

PressPress

oror

to modifyto modify

PressPress

Figure 9-3

Note:

1. When any of one parameter is modified, press whether key (change page)

or key( return Ready state ), the modified parameters will be saved

automatic.

2. When modify any of the parameter, press key to return the Ready state

OPERATION

20

MENU

OPERATION

MENU

21

User ManualUser Manual User ManualUser Manual

9.5 Control Mode9.5 Control Mode

There are two ways to start and stop the motor through the soft starter:

keyboard and terminal. In any way, user can set the parameter according to

the situation ( see figure 9-2 figure 9-3 figure 9-4). When shows

on the keyboard, press and key to select the control mode you

want.

For Example : For Example :

Control

mode

PressPress

oror

Figure 9-5

Note:

1. When modifying any of the parameter, press key to return Ready state

.

2. When the value is set ( keyboard and terminal are all enable ), the

keyboard control can't work if the two-line connect way is select (see figure

5-1).

keyboard control is enablekeyboard control is enable

Terminalcontrol is enableTerminalcontrol is enable

Keyboard and terminal are all enableKeyboard and terminal are all enable

STOP

9.6 Parameter Range 9.6 Parameter Range

Starting Mode

There are 3 Starting mode. User can set this parameter by keyboard referring to

chapter 8-1 and chapter 9.

Initial Voltage

This parameter is valid at the Voltage Ramp mode. If the Voltage Ramp mode is

selected, the lamp V and lamp % at the keyboard are light.

This parameter indicates that the initial output voltage of the product at

the instant of starting and also indicates the initial voltage of the motor

(see figure 6-1).The more this parameter is, the more the starting torque is.

The default value is 30. For the fan pump load, this parameter should not

set bigger. For the load which has bigger static resistance, this parameter

can be increased.This parameter can be adjusted between 20-50%. If the

Current Limit mode is selected, this parameter is invalid.

Jogging Voltage

At this mode, the parameter range is 5-75%. When this parameter is set

the lamp V and lamp % at the keyboard are light.

At Jogging mode, the output voltage of this product maintains

unchanged(it is the set parameter). If this parameter is too low, the motor

may don't turn. It's normal.

User can set this parameter by keyboard referring to Tatble 8-1 and

Chapter 9.4.

OPERATION

MENU

Ramp Time

This parameter indicates that the maximum time from the beginning to

the end of the starting. The default is 30s. When setting this parameter,

lamp S on the keyboard is light.

If the starting current is not less the 125% of rate current after the time is

reached, the soft starter enter the protection state 3s later automatic.

This parameter is set according to the load type. For the heavy load type

and big inertia load type, this value can be increased. For light load type,

the starting time may be shorter than the time user set. It is normal if the

starting process is all right. This parameter is invalid at the Current Limit

mode.

OPERATION

22

MENU

23

User ManualUser Manual User ManualUser Manual

Current Limit at starting

At the Current Limit mode, this parameter indicate the maximum current

during starting. The range of this parameter is 20%~400% of Ie. The

default is 300, it means the starting current is the triple of the rate current.

When this parameter is set, lame A,% on the keyboard is light,

For the fun and pump load type, it is all right. For other load type, user can

modify it according to the character of load type. It is better to set

between 250% and 350%. This parameter is invalid at the Voltage Ramp

mode.

Current Limit Time

The range of Current Limit Time is 1~120 second at the Current Limit

mode. The default is 30. When setting this parameter, lamp S on the

keyboard is light.

In the Current Limit Mode, if the actual starting time is longer than this

value, and the starting current is not fell under the 125% of the motor rate

current, system enter the Protection State.

Over Current protect at starting and stopping

The range of this parameter is 400~600%Ie. This parameter is set for the

protect function aimed at the big current at the starting process. The

default value is 400.

This parameter should be increased when the inertial of the load is

increase.

Current Unbalance Factor

This parameter is set for the protect function aimed at that the difference

of 3 phases current is bigger at running. The default value is 30%.The

smaller this parameter is, the more the sensitivity is. This parameter

should not is too small, in order to avoid the protection is too sensitive to

influence the normal operation of the equipment.

Note: This protect function is active only when the average current is

bigger than the 20% of the rate current.

The calculation of the current unbalance factor.

Control Mode

Modifying this parameter, user can change between the keyboard and

terminal easily. The default is 1. It means the keyboard control. If it is set

2, it means the terminal control. If it is set 3, it means the terminal control

and keyboard control are all available.

Note:

If the value is set 3 (keyboard and terminal are all available), the

keyboard control can't work if the two-line connect way is selected.For

detail see Table 8-1 and chapter9.5.

SCR Trigger select

The operation mode of SCR is decided by it after the bypass contactor is

on.

1.when the bypass is on, SCR trigger is blocked. The running current

shows on the keyboard, and the protection functions are all on.

2.when the bypass is on, SCR trigger is not blocked. The running current

shows on the keyboard, and the protection functions are all on.

3.when the bypass is on, SCR trigger is blocked. The running current

doesn't show on the keyboard, and the protection functions are all off.

The default value is 2

Starting overload level

There are 8 levels. The protection time of every level is different. The

relation between overload multiples and protection operation time shows

in chapter12.2. The default value is 4.

Note: The overload protection is inverse time after the bypass contactor is

on. It isn't selected. For detail see chapter 12.2.

Over current protection during running

This protection function will put into work as soon as the instant current

is big. The default value is 200%. It means the protection value is twice as

the rate current.

Stopping mode

There are two stopping mode: soft stop and free stop. The default value is

1-free stop. The soft stop function is used to avoid Water Hammer .

The free stop is adopted as normal.

Soft stop factor

This parameter is valid only when the stopping mode is free stop. It

decide the time and effect of the soft stop. The smooth stop effect will be

gained if this parameter is set correct.

OPERATION

MENU

24

OPERATION

MENU

25

User ManualUser Manual User ManualUser Manual

9.7 Special Parameter9.7 Special Parameter

Rate CurrentRate Current

The Rate Current indicate that the output current of the soft starter at the

rate power. This parameter changes with the output power of the soft

starter. For detail see chapter 10. The methods shows below.

On Ready state , press key and not release, and rate current

display on the keyboard, the unit is ampere. Release this key, system

return to Ready state .

For example: rate current is 150AFor example: rate current is 150A

PressPress

°´

Figure 9-6

Last FaultLast Fault

On Ready state , press key and release it 5 minutes later, the last

fault code display on the keyboard . Release the key, return Ready

state .

For example: the last fault is missing phase For example: the last fault is missing phase

PressPress

(maintain 5 seconds)(maintain 5 seconds)

Figure 9-7

rate currentrate current

fault codefault code

Setting Setting

When soft starter is in the Ready state, press the key and keep

press this button 5 minutes, or press key and key at the same

time, system enter Setting state. In this state, use can modify all the

parameter. For detail see chapter 9

StartingStarting

When soft starter is in the Ready state, and it is allowed to start the

motor, then user can press key to start the motor according to the

starting mode user set. At the same time, current value shows on the

keyboard. At the process of Starting or running, user can press the

key at any time to stop the motor, and then the system enter Ready

state.

In this state, the system monitors the parameter voltage phase, high

current suddenly, the time of starting and the system temperature etc.

So when the motor is running, soft starter can protect motor.

BypassBypass

After the starting process is over, the terminals K22,K24 is close

After the starting process , the terminals K22,K24 is close

automatically. User can control bypass conductor KM by this terminals,

then the motor is powered by electric net through the bypass conductor

KM. Then the SCR trigger block according to the value of the para-

KM. Then the SCR trigger according to the value of the ara

meter (SCR trigger select) shows in table 8-1. The code show on

s

meter (SCR trigger select) show in table 8-1. The code show on

the keyboard is depended parameter too.( The current value or the code

the keyboard is depended parameter t .( The current value or the de

is showed ).

is showed

).

is over

block p -

oo co

9.8 Working State9.8 Working State

ReadyReady

When the soft Starter is power on, self-inspection is performed. The

self-inspection includes: test the parameters that the user changed (

parameters wrong protection), check if the phase of voltage is not right

( phase lack protection ) and check if the system temperature is too

high ( overheating protection ) etc. Any fault is detected, the system

immediately enter Fault mode. If no fault is detected, the system

enter the Ready state, and shows on the keyboard panel. At the

same time, the lamp on the left of the keyboard is light, it shows which

start mode is.

OPERATION

26

MENU

FaultFault

When soft starter is on the process of Starting, Operating and Ready

state, system monitor all the protect parameter. If the value of mea-

state, system monitor all the protect parameter. If the value f mea-

sured is over the limited value user set, the trigger signal of the SCR

module is blocked, system enters the Fault state. Fault code shows on

the keyboard. The explain of the fault code introduce in the chapter

12.1 fault display explanation and solutions

o

OPERATION

MENU

27

User ManualUser Manual User ManualUser Manual

10 Rate Current adjust10 Rate Current adjust

If the power off the motor is smaller than that of the soft starter, this para-

meter must be calibrated to ensure the motor can gain the better starting

effect and protect function.

The way of calibration is that: Before power on, connect terminal RET and

COM, then power on, the shows in the keyboard. Press the key within

5 seconds, and keep press this key until the rate current displays in the

keyboard. Press the key or to modify this parameter. Press the key

and keep 5 seconds to save and return ready state. Then the rate

current is the value user set. Remove the line connect the terminal RET and

COM at last.

Note: This value must be smaller then the default value. The range is 50-100%Note: This value must be smaller then the default value. The range is 50-100%

For example: adjust the rate current from 60A to 45A For example: adjust the rate current from 60A to 45A

PressPress PressPressPressPress

Figure 10-1

11 Displayed Current Calibrate11 Displayed Current Calibrate

The displayed current of each Soft starter is calibrated before leave factory.

If user finds the current value showing on the keyboard is not equal to the

actual current value, this parameter must be calibrated.

WAY1:Setting the starting mode to Jogging, and the motor must be

connected to its load, the parameter of Jogging Voltage is set

below 40%, keep press key ( enter the Jogging state ), press

and or key at the same time to modify this value

until it is equal to The actual current. Then release the key and

Key, the modified parameter save automatic.

The other way can be adopted sometimes.

12 Fault Protection and Display12 Fault Protection and Display

There are 11 protections. When the fault is detected, soft starter stop

immediately, the fault code displays on the keyboard. User can find the

solution by check the explaination to this fault code. After the fault is

solved, pres the key(keep 3 seconds) or connect terminal RET and

COM to reset and return ready state.

12.1 Fault displaying and Solution12.1 Fault displaying and Solution

Table 12-1

CodeCode

ExplainationExplaination

Parameter errorParameter error

Phase lackPhase lack

Over current or

flug

Over heatOver heat

Start time exceed

the limit value

OverloadOverload

Over current at

running

Current unbalanceCurrent unbalance

Over current at

starting

Over current at

soft stop

InterferenceInterference

Fault reasonFault reason

Parameter loseParameter lose

Power Line is unconnected

One phase output open

Current is bigger at starting

instant

heat sink is over heatheat sink is over heat

Load is too heavy

Start time is too short

Is it overloadIs it overload

Load increase suddenly

Fluctuate of the load is too big.

Motor have fault

The parameter of unbalance

factor is too small

Current at starting is over

the limit

Current at soft stop is over

the limit

External interferenceExternal interference

Check the parameter and reset

them

Check the power line and output

line

Check the load

Initial voltage is high

Current Limit is high

If the fan is normal

If bypass contactor connect

reliable

Check the load

Increase the start time

Increase the current limit

If the load current exceed the

limit

Adjust the loadAdjust the load

Check the motor

Reset the parameter of unbalance

factor

Adjust the limit and

protect value

Adjust the limit of current

Adjust the protect of current

Adjust the soft stop factor

Eliminate interference sourceEliminate interference source

SolutionSolution

WAY2: At the B state, press + key or + key, this

parameter can be modified to match to the actual current.

OPERATION

28

MENU

OPERATION

MENU

29

User ManualUser Manual User ManualUser Manual

Note:

The way of inquire of the last error code shows at the chapter 9.7 the Last

Fault inquiring.

If the fault appears, user can reset the fault using 3 methods showing below.

If the fault appears, user can reset the fault using 3 methods showing below. Press key and maintain 3 seconds.

Connect controlled terminals RET and COM, and maintain 3 seconds.

Shut down the power and power on again.

12.2 Overload protection and protection level12.2 Overload protection and protection level

Overload protection function is worked during the process of starting and

running.

There are 8 protection levels. The default is 4(same as 15 in

IEC60974-4-2 standard). User can set this parameter according to the

load situation, the smaller this parameter is, the shorter the starting

time of protection is, vice verse.

Motor Thermal Protect Curve

T(s)

10000

1000

The level 2 can't be selected ( same as 10A in IEC60974-4-2 standard).

For detail see the table 12-2 and standard curve graph of IEC60974-4-2.

Table 12-1

OPERATION

MENU

MultipleMultiple

LevelLevel

30

StandardStandard

2

Special

100

10

1

0.5

1.12 1.5 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00

30 25

20 15

10

10A

2

I/Ie

OPERATION

MENU

31

User ManualUser Manual User ManualUser Manual

13 Test Running13 Test Running

Inspection before runningInspection before running

For safe running, user should inspection the items show as following items

before power on.

Is the power of the soft starter match to that of the motor?

Does the insulation of the motor meet the requirement?

Is the wiring of power and motor line right?

Do all the nut screw tightly

Measure the input power (R\S\T) using multimeter, Check whether

there is short circuit.

Note:

1. There is linear power transformer between any two phases of power side.

Static resistance is about 300 .

2. There are fans between any two phases of load side. Static resistance is about

2k .

Power on and trial runningPower on and trial running

When power is on, system enter Ready state, shows on the key-

board. It means everything is right. There are two lamp on the left of

the keyboard to indicate the starting mode ( Voltage Ramp or Current

Limit )

If the keyboard display correctly, press key to start the motor,

then the actual current displays on the keyboard.

At running state, press key to stop the motor, return to Ready state.

During trial running, if the terminal mode is selected, setting

parameter according to item in chapter 8, table 8-1.

If the motor is not connected to the output load terminal U V W of

the soft starter, step above can also be executed. It is useful to check

wiring of operate system, bypass contactor, all the lamp etc.

Attention and SafeAttention and Safe

Warning: At the course of trial running, any abnormal phenomenon is

fond, such as: Abnormal sound, Smoking or abnormal smell,user should

cut off the power immediately.

If the motor is not connected to the output load terminal, power on,

voltage can be measured at the output power connections. This is

inductive voltage. This is normal phenomenon. This inductive voltage

disappears immediately after the motor is connected.

During trial running, if the starting effect is not ideal, user can modify

the parameter such as starting mode, current, voltage and time etc.

If any fault is detected, responded fault code will show on the keyboard.

See Table 12-1, Please deal with them according to the corresponding

tips.

Warning: If the soft starter is power, don't open the shell cover to avoid

electric shock.

OPERATION

32

MENU

OPERATION

MENU

33

User ManualUser Manual User ManualUser Manual

Appendix 1. Specification and Type

STRA/STRB/STRG

motor power

KW

Rating current

A

380V series380V series

STRASTRA STRBSTRB STRGSTRG

Table F-1

Appendix 2: A Series Appearance Dimension

Table F-2

Appearance

Type Type

Appearance

dimension

(mm)

Installation

dimension

(mm)

KeyboardKeyboard

Wall suspendingWall suspending

Sheet copper

dimension

(mm)

Figure F-1Figure F-1

Weight

(Kg)

Installation Installation

Figure F-1

Figure F-2

Note: STRG is the standard cabinet, the circuit diagram show in table F-7Note: STRG is the standard cabinet, the circuit diagram show in table F-7

Ordering:Ordering:

Users should inform the agent the information such as product type,

specification, and load when ordering, for ensuring what you ordered is

proper.

Bypass contactor and the electrical protection devices must be equipped

when using.

For the users who have special requirements, please say the requirement

to the supplier when ordering. We will provide perfect service.

OPERATION

34

MENU

KeyboardKeyboard

Wall suspendingWall suspending

Figure F-2Figure F-2

OPERATION

MENU

35

Appendix 3: B Series Appearance DimensionAppendix 3: B Series Appearance Dimension

Table F-3

Appearance

Type Type

STR008B-3 STR015B-3

STR022B-3 STR030B-3

STR037B-3 STR075B-3

STR090B-3 STR160B-3

STR187B-3 STR500B-3

Appearance

dimension

(mm)

W1 H1 D W2 H2

175 270 225 150 225 140

205 300 235 180 285 153

300 490 250 270 470 170

472 530

310

Installation

dimension

400 505 230 150 4055

(mm)

95

105

100

58

D3

154

120

130

dD1 D2

7

9

Sheet copper

dimension

W4

W3

50 25

63 25

90 40

(mm)

H3

265

290

475

510

D4 d1

3

5

Weight

(Kg)

7

7.5

11

35

45

Installation Installation

Figure F-3

Figure F-4

Appendix 4: G Series Appearance Dimension Appendix 4: G Series Appearance Dimension

Table F-4

Installation

Type Type

STR008G-3 STR075G-3

STR090G-3 STR160G-3

STR187G-3 STR400G-3

STR450G-3 STR500G-3

Appearance

dimension

(mm)

W1

H1

560

1800

600

1800

700

2000

800

2200

D

450

560

600

Installation

dimension

(mm)

W2

H2

350

240

390

350

490

390

590

390

Weight

d

111190

11

(Kg)

130

180

200

Installation Installation

Cabinet

Figure F-5

H1

H2

d4

H2H1

d1 6

STRSTR

Soft starterSoft starter

d1 6

STRSTR

Soft starterSoft starter

93

W3 W3

W2

W1

KeyboardKeyboard

¼üÅÌºÐ

93

W4 6

75

KeyboardKeyboard

¼üÅÌºÐ

Wall suspendingWall suspending

W4 6

75

H3

D2

D1

D3

D1

D

Figure F-3Figure F-3

D4

Figure F-4Figure F-4

H1

60

W1

W2

D

d4

H2

OPERATION

MENU

d4

W3 W3

W2 W1

Wall suspendingWall suspending

36

D2

D3

D4

Figure F-5Figure F-5

D

OPERATION

37

MENU

Appendix 5: A Series Typical Wiring Diagram Appendix 5: A Series Typical Wiring Diagram

Figure F-5 Figure F-6

Appendix 6: B SERIE typical wiring diagram Appendix 6: B SERIE typical wiring diagram

STOP COM

Two lineTwo line

RUN

STOP COM

RUN

K

Start FinishStart Finish

STOP COM JOG

BypassBypass FaultFault

K24

STR(A)

L1 L2 L3

QF

R S T

U V W RUN

Two lineTwo line

Start FinishStart Finish

STOP COM JOG

KM

Three lineThree line

K21 K22 K14 K11 K12 12V OC COMK24

RUN

BypassBypass FaultFault

Three lineThree line

N

There are two control mode: 2-line, 3-line. Start when K is close. Stop when K is open. There are two control mode: 2-line, 3-line. Start when K is close. Stop when K is open.

Note There are inner bypass contactor in A series product, so there are not terminals U1,V1,W1.Note There are inner bypass contactor in A series product, so there are not terminals U1,V1,W1.

STR(B)

L1 L2 L3

QF

R S T

U1

U V W

V1

W1

OPERATION

MENU

KM

38

OPERATION

MENU

39

Appendix 7: G SERIE typical wiring diagram Appendix 7: G SERIE typical wiring diagram

Figure F-7

FUSEFUSE

START/

STOP

START/

STOP

BYPASSBYPASS

KA1

AC220V

SB1

FU3

R

FU2

PV

FU1

KM

AR

SB2

STRB

K22 K24

KA1

STOPSTOP

RUNNING RUNNING

HG

COM

STOP

RUN

FAULTFAULT

HR

AR

HY

KMKA1

STRB

K12 K14

K22 K24K11K12K14

BypassBypass FaultFault

Control circuitControl circuit

Note:This circuit diagram is designed for the

the motor which power is 90KW or above.

Note:This circuit diagram is designed for the

the motor which power is 90KW or above.

Main circuitMain circuit

OPERATION

MENU

STR(B)

R S T

QF1

L2

L3

L1

N

U V W

U1

V1

W1

KM

LH

A

PA

3~

U V W

40

Westpow STR022A-3, STR.A Series, STR030A-3, STR037A-3, STR045A-3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual