Modbus - VFD Control
VFD
Start & Stop
Starts or stops the VFD, be aware that a target frequency has to be set as well
- Address : 5
- Function : 6 (WRITE_REGISTER)
- Values :
- On : 1
- Off : 2
TCP Sequence for Start
d2 8d 00 00 00 06 01 06 00 05 00 01
+ + + +
| | | |
| | | +----> Value (2 bytes) = 00 01
| | |
| | +----> Address (2 bytes) = 05 or 0x0005
| |
| +--> Function Code (Always 6)
|
+--> Slave - ID (Always 1)TCP Sequence for Stop
d2 8d 00 00 00 06 01 06 00 05 00 02
+ + + +
| | | |
| | | +----> Value (2 bytes) = 00 02
| | |
| | +----> Address (2 bytes) = 05 or 0x0005
| |
| +--> Function Code (Always 6)
|
+--> Slave - ID (Always 1)Frequency
Sets the target frequency
- Address : 6
- Function : 6 (WRITE_REGISTER)
- Values : 1 - 50
TCP Sequence for setting target frequency to 50 Hz
Remark : Please respect the max. main frequency setting on the inverter (settings)
d2 8d 00 00 00 06 01 06 00 05 00 32
+ + + +
| | | |
| | | +----> Value (2 bytes) = 00 32 (for 50Hz)
| | |
| | +----> Address (2 bytes) = 06 or 0x0006
| |
| +--> Function Code (Always 6)
|
+--> Slave - ID (Always 1)Direction
Sets the rotation
- Address : 7
- Function : 6 (WRITE_REGISTER)
- Values :
- Forward : 1
- Reverse : 2
- Stop : 3
TCP Sequence for setting direction : Forward
d2 8d 00 00 00 06 01 06 00 07 00 01
+ + + +
| | | |
| | | +----> Value (2 bytes) = 00 01
| | |
| | +----> Address (2 bytes) = 07 or 0x0006
| |
| +--> Function Code (Always 6)
|
+--> Slave - ID (Always 1)TCP Sequence for setting direction : Reverse
d2 8d 00 00 00 06 01 06 00 07 00 02
+ + + +
| | | |
| | | +----> Value (2 bytes) = 00 02
| | |
| | +----> Address (2 bytes) = 07 or 0x0006
| |
| +--> Function Code (Always 6)
|
+--> Slave - ID (Always 1)