Goodrive270 series VFD for fan and pump Basic operation guidelines
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Manual polling
When the VFD is in stopped stated, set the terminal input function to 85 (Manual polling), set the
terminal input to 1 to select the manual polling mode, and then send a startup command. The VFD
starts all connected motors from motor 1 in polling mode. During polling, all motors are started by
means of adding motors in sequence. When all motors have been started, motors are reduced in
sequence until the end.
This manual polling function can check whether the wiring is correct and motors can run properly.
During manual polling, you can terminate the polling anytime by sending a stop command, which
does not have an impact on terminals. If polling is completed or terminated, a stop command must be
given so that the next polling mode can be entered after restart.
Pump cleaning
The VFD supports water pump cleaning, which is shown in the following figure. The motor runs
forward for certain time, it runs reversely for certain time after a period of stop, and then it runs
forward forward after a period of stop. The motor repeats the procedure circularly.
Related function codes:
Function
Name Description Default Modify
P96.20
Forward run frequency for
P00.05±P00.03
50Hz Ƽ
P96.21
Reverse run frequency for
P00.05±P00.03
30Hz Ƽ
P96.22
Forward run ACC time for
0±3600.0s
10.0s ƻ
P96.23
Reverse run ACC time for
0±3600.0s
10.0s ƻ
P96.24
Forward run duration for
1.0s±1000.0s
5.0s ƻ
P96.25
Reverse run duration for
1.0s±1000.0s
5.0s ƻ
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