INVT Goodrive 310-UL Series Operation Manual page 232

GD310-UL series VFD
Confirmation
6: The task could not be implemented due to operational state
7: Request isn't supported.
8: Request can't be completed due to communication error
9: Fault occurs when write operation to stationary store
10: Request fails due to timeout
11: Parameter cannot be assigned to PZD
12: Control word bit can't be allocated
13: Other errors
4 No parameter change rights
Example 1: Read parameter value
Read keypad set frequency value (the address of keypad set frequency is 10) which can be achieved
by setting PKW1 as 1, PKW2 as 10, return value is in PKW4.
Request (From master to VFD):
Request
Response (From VFD to master)
Response
Example 2: Modify the parameter values (RAM and EEPROM are modified)
Modify keypad settings frequency value (the address of keypad set frequency is 4) which can be
achieved by setting PKW1 as 4; PKW2 as 10, modification value (50.00) is in PKW4.
Request (From master to VFD):
Request
Response label (From slave to master)
PKW1 PKW2 PKW3
00 01 00 10 00 00
0010: Parameter address
0001: Request for reading parameter values
PKW1 PKW2 PKW3
00 01 00 10 00
0001: Response (parameter values refreshed)
PKW1 PKW2 PKW3
00 04 00 10 00 00
0004: Parameter changes
Function
PKW4 CW CW
00 00 xx xx xx
PKW4 CW CW
00 50 00 xx xx xx
5000: Parameter value of address 10
PKW4 CW CW
50 00 xx xx xx
5000: Parameter value of address 10
-224-
PZD2 PZD3 ... PZD12
xx xx xx ... xx
PZD2 PZD3 ... PZD12
xx xx xx ... xx
PZD2 PZD3 ... PZD12
xx xx xx ... xx
Expansion card
xx
xx
xx