Communication extension card
PROFIBUS communication card
-15-
of the frequency set through keypad is 10), and the value is returned in PKW4.
Request (master station -> VFD)
PKW1
PKW2
PKW3
PKW4
CW
PZD2
PZD3
... PZD12
Request 00 01 00 10 00 00 00 00 xx xx xx xx xx xx ... xx xx
0001: Requesting to read a parameter value
0010: Parameter address
Response (VFD -> master station)
PKW1 PKW2 PKW3 PKW4
CW
PZD2
PZD3
… PZD12
Response 00 01 00 10 00 00 50 00 xx xx xx xx xx xx …
xx xx
5000: Parameter value in address 10
0001: Response (parameter value updated)
Example 2: Modifying the value of a parameter (on both RAM and EEPROM)
You can set PKW1 to 4 and PKW2 to 10 to modify a frequency set through keypad (the
address of the frequency set through keypad is 10), and the value to be modified (50.00) is in
PKW4.
Request (master station -> VFD)
PKW1 PKW2 PKW3 PKW4
CW
PZD2
PZD3
…
PZD12
Request 00 04 00 10 00 00 50 00 xx xx xx xx xx xx
xx xx
Response (VFD-> master station)
PKW1 PKW2 PKW3 PKW4
CW
PZD2
PZD3
…
PZD12
Response 00 01 00 10 00 00 50 00 xx xx xx xx xx xx
…
xx xx
0001: Response (parameter value updated)
PZD examples: The transmission of the PZD zone is implemented through VFD function code
settings. For the function codes, see the related INVT VFD operation manual.
Example 1: Reading the process data of a VFD
In this example, PZD3 is set to "8: Rotating speed of the running" through the VFD parameter
5000: Parameter value in address
004: Parameter value to be modified
Содержание Goodrive350 Series
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