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Inverter ST-750W

Name:Inverter ST-750W

English version inverter.pdf


                        

                                INVERTER INSTRUCTION


1.1. Display interface description

L1: The red LED flashing button is locked.

L2: Forward indicator light is green (FWD), always on during operation. The LED flashes when forward

rotation is stopped.

L3: Reverse indicator blue (REV), always on during operation. The LED flashes when reverse rotation stops.

L4: POWER indicator, the power indicator is always on.

L5: Rs485 communication instruction.

1.jpg


1.2. Key function explanation

K1 P-K/shift: function parameter display button (P-K/SHIFT). Press the P-K button to query the IPM module

temperature, bus current, bus voltage, motor operating speed, and motor operating frequency. The SHIFT key can

be used for shift selection during setting.

K2 menu/exit: set the enter button (MENUZESC) o MENU button is the function enter button. The ESC key is

the exit key.

K3 save/lock: save/lock button (SAVE/LOCK) SAVE: save, LOCK: lock. Long press to lock or unlock the K2, K3,

K4 keys. After 3 minutes of operation, if there is no operation on the interface, it will automatically lock.

K4 reverse/forward: forward/reverse switching button (FWD/REV).

K5 increment: speed control plus button/data setting plus (t) o

K6 Start/Stop: Start/stop button set confirmation key (RUM/STOP/OK).

K7 Decrease: Speed-Decrease Button/Data Setting Decrease (I)<,

VR panel speed adjustment potentiometer: invalid when setting button speed adjustment and Rs485

communication operation.

2. Function description

2.1. Brief description of the inverter

This inverter is a single-phase 220V voltage input, driving a three-phase motor (be sure to convert the

connection method to a triangular type). Frequency output 1.0-99.0H B In order to increase the output

voltage, this product uses the SVPWM modulation method, the carrier frequency 8.0KHZo is suitable for

motors below 750W, and the maximum output power is 1100W. The inverter can arbitrarily change the V/F

curve by setting the V/F compensation frequency and the voltage ratio at this frequency. By setting the

maximum value of the V/F curve, according to the load, the efficiency of the electrical energy is maximized,

the heat of the motor is reduced, and the service life of the motor and the inverter is extended.

2.2. Internal parameter setting

2.2.1. Operation interface description

The function parameter display content is as follows:

1. Items that can be queried by the K1 key

A. t-xx: displayed as the temperature value of the radiator,

B. Cx-xx: displayed as the current value.

C. xxx.x: Displayed as DC bus voltage value.

D. xxxx: displayed as the motor speed.

E. Fxx.x: Displayed as running frequency value.

2. E-x.x: indicates a fault, refer to the fault code to determine the cause of the fault.

3. The power indicator flashes during the setting interface  and startup, indicating that the machine has successfully

communicated with the external Rs485.

4. The button has no operation for 3  minutes, and the power light flashes. At this time, K2, K3, and K4  are locked.

To unlock, press and hold the K3 button for 5 seconds.

5. Running indicator lights FWD, REV, flashing means stop; long light means moving in this mode.

2.2.2. Description of setting interface

When you  press the K2  (MENU) button, the  digital tube flashes  -0.0- through  the digital setting

plus or minus button (f) (1), adjust to select the setting Main code to enter, see (Table 1)

During the setting  process, you can adjust  the code to  be set by the  digital setting shift key  (K1)

and the addition and subtraction buttons  (1) (1). After the code is set, press the  Enter key (K6) to

enter the item  code selection . After the  sub-item code is selected, press  the K6 key to return to

the Main code interface, the flashing  -X.X- is displayed, then select the next Main  code, and then

press the K6 key to enter the sub-code selection.

When  all the  setting options  are  completed, press  the data  setting  save key  K3 to  display  the

 

flashing  SAVE, then  press  the  data setting  save  key  K3  (SAVE) again  to  confirm  the save,  the

interface stops flashing  and the data  is saved. After  starting the inverter,  it can run according  to

the set  data, without power  off and then  on. When  you do not  want to save  the data,  you can

press  the  menu  setting  exit  key  K2 (MENU/ESC)  to  exit  without  affecting  the  previously  set

parameters,  or  after   no  key  operation   for  20S,  it  will   automatically  return  to  the   running

interface.

 

 

No.

CODE


Content


Sub-item code


spacer.gif

Default value


1

-0.1-

Set startup time

Setting range: 1-15 (time range: 5S-0.1S)

7

2

-0.2-

Set stop time

Setting range :1-15(time range:5S-0.1S)

7

3

-0.3-

Minimum frequency compensation

Setting range  5-15

8

4

-0.4-

Set max of compensation frequency

Setting range :5.0-30.0HZ

20

5

-0.5-

Set the maximum compensation frequency and voltage ratio

Setting range :25-85

55

6

-0.6-

Maximum       frequency       limit

Voltage ratio

Setting range :80-128

128

7

-0.7-

Rs485 baud rate

0:48(4800) 2:192(19200)

1:96(9600) 3:384(38400)

96

8

-0.8-

Rs485 format, ASCII

1: 8N1      3: 8E1

2:8N2 4:801

8N1

9

-0.9-

Aircraft number

1-255

1

 

 

 

10

 

 

 

-1.0-

 

 

 

Working frequency source

0: Panel keyboard control

 

 

 

1

1: Panel potentiometer control

2:  External  analog  signal  input  (output voltage is 0-5V) or external potentiometer

3  RS485(RS485)

4: Segment speed input

 

 

11

 

 

-1.1-

 

 

Start/stop control source

0: Panel keyboard control

 

 

0

1:RS485(RS485)

2: forward when power on

3: Reverse when power on

4: External port

 

12

 

-1.2-

 

Stop method

0: coast stop

 

1

1: Decelerate to stop

2: brake stop

 

13

 

-1.3-

 

M* function selection

0: M1 forward/stop, M2 reverse/stop

 

0


1: M1 forward/stop, M2 reverse/stop


2: M1 running/stop, M2 section speed


 

 

14

 

 

-1.4-

 

 

M0 function selection


0: Running indication

 

 

0

1: Set arrival instruction

spacer.gif

2: fault indication


3: undefined (customizable)

15


-1.5-



Overload protection options



Undefined



16

-1.6-



Over temperature protection options



40°C~100°C



90°C


17

-1.7-


Highest frequency setting


1.0~99.0Hz


50

18

-1.8-

Minimum operating frequency


1.0~30.0Hz


1


19

-1.9-

working frequency

1.0-99.0Hz

50

20

-2.0-

Maximum output voltage corresponding frequency

35.0~99.0Hz

50

21

-2.1-


Segment speed 1 setting


1.0-99.0Hz


5


22

-2.2-

Segment speed 2 setting

1.0~99.0Hz

10

23

-2.3-

Segment speed 3 setting

1.0~99.0Hz

20

24

-2.4-

Segment speed 4 setting

1.0-99.0Hz

25

25

-2.5-


Segment speed 5 setting


1.0~99.0Hz


35


26

-2.6-

Segment speed 6 setting

1.0-99.0Hz

40

27

-2.7-


Segment speed 7 setting


1.0-99.0Hz


45


28

-2.8-

Operating frequency


1.0~99.0Hz


45


29


-2.9-


Undefined (customizable)




 


30

-3.0-


Current display selection

1 Percent ratio


1


31

-3.1-

Undefined (customizable)


32

-3.2-


Braking frequency at stop


0.0-50.0HZ


0


33

-3.3-

Braking time

0.0-5.OS

0

34

-3.4-

Braking coefficient

0-30%

0

35


-3.5-


Number of pole pairs


1~6


2


36

-3.6-

Motor slip

0.01-1.00

1

37

-3.7-

Motor rated speed

1-9999

1500

38

-3.8-

Segment speed 0 setting

1.0-99.0Hz

1

39

-9.1-

Restore the default value

Display flashing CLE, press start/stop button to resume


40

-9.5-

Reset MCU

The display flashes -8.88, press the start/stop button to reset

-8.88

4..png

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