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7.2.2 Support code
Soft start only supports the following codes. If other codes are used, the exception code 01 will be given.
Code
03
06
Function description
Read register
Write a single register
Code 03 is only read by a single word (WORD)
7.2.3 Description of register
·40001 command register
Bit
Value
Description
0
1
Starter will start
0
Remain status
1
1
Starter will stop
0
Remain status
2
0-1
Reset the starter
3-15
0
Not used
For example:Make the soft starter with the slave address 02, the controller sends out 02 06 00 01 00 01, if the command
is executed normally, the return code is 020600010001. Whether the starter can start normally should check the status
register. If there is a fault, you should send 02 06 00 01 00 04 to reply.
·
Register address 40002 status register
The status register reflects the status of the soft starter and is represented by a word.
Bit
Value
Description
0
1
Starting status
0
Stopping status
1
1
Running status
0
Stopping status
2
1
Soft stopping status
0
Stopping status
3
1
Fault status
0
Normal status
4-15
Not used
For example: Read status register code 020 300 02 00 01
If the starter is in the starting process, the return code 0203 02 00 01
If the starter fails, the return code is 02 03 02 00 08, and the type of fault can be read according to 4.
·
40003 current average value (hexadecimal)
This value reflects the average value of the three-phase actual current of the motor (including-a decimal)
For example: reading current
Send code 02 03 00 02 00 01
If the current is 235A, return 0203 02 09 2E (return value is the actual current value)
·
40004 fault code (hexadecimal)
When the status register 40002 bit 3 is 1, it means that the soft start is in a fault state. The fault code is consistent with 6.1.
For example:Send code 02 03 00 04 00 01
If it returns 02 03 02 00 04, it means that the current input phase is missing (fault code 04).
