Goodrive3000 series medium voltage VFD
Response (from VFD to master)
Response
Example 2: Modifying the value of a parameter (only on the RAM)
To modify the value of the running frequency upper limit parameter (of which the address is 4), you can
set PKW1 to 2 and PKW2 to 4. The to-be-modified value (50.00Hz) is in PKW4.
Request (from master to VFD):
Request
Response (from VFD to master)
Response
Example 3: Modifying the value of a parameter (both on the RAM and EEPROM)
To modify the value of the running frequency upper limit parameter (of which the address is 4), you can
set PKW1 to 2 and PKW2 to 4. The to-be-modified value (50.00Hz) is in PKW4.
Request (from master to VFD):
Request
Response (from VFD to master)
Response
9.4.3 PZD zone
PZD zone (process data zone): The PZD zone in a communication packet is designed for controlling
and monitoring VFDs. The master and slave nodes always process the received PZD with the highest
priority. The processing of PZD takes priority over that of PKW, and the master and slave nodes always
PKW1
PKW2
PKW3
PKW4
00
01
00
04
00
00
50
0001: Response (parameter value is refreshed)
PKW1
PKW2
PKW3
PKW4
00
02
00
04
00
00
50
0002: Modifying the value of a parameter
PKW1
PKW2
PKW3
PKW4
00
02
00
04
00
00
12
0001: Response (parameter value is refreshed)
PKW1
PKW2
PKW3
PKW4
00
04
04
04
00
00
50
0004: Modifying the value of a parameter
PKW1
PKW2
PKW3
PKW4
00
01
00
04
00
00
50
0001: Response (parameter value is refreshed)
-280-
CW
CW
PZD2
PZD3
00
02
00
xx
xx
xx
xx
5000: Parameter value of address 4
CW
CW
PZD2
PZD3
00
02
00
xx
xx
xx
xx
5000: Parameter value of address 4
CW
CW
PZD2
PZD3
30
02
00
xx
xx
xx
xx
CW
CW
PZD2
PZD3
04
02
00
xx
xx
xx
xx
5000: Parameter value of address 4
CW
CW
PZD2
PZD3
00
02
00
xx
xx
xx
xx
PROFIBUS communication
...
PZD12
...
xx
xx
...
PZD12
...
xx
xx
...
PZD12
...
xx
xx
...
PZD12
...
xx
xx
...
PZD12
...
xx
xx
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