VD120 Series Inverter User Manual Parameter Description
-
117
-
FA-21
PID Initial Value
0.0%~100.0%
0.0%
○
FA-22
PID Initial Value Hold
Time
0.00s~650.00s
0.00s
○
When the frequency
converter starts up, the PID output is fixed to the PID initial FA-21, continuous
PID initial value after holding time FA-22, PID to start the closed-loop adjustment operation.
FA-21
Time
Output frequency
PID initial value hold time FA-22
Fig 6-19 Schematic diagram of PID initial value
This function is used to limit the difference between the PID output two beats (2ms/beat), in order to
suppress the PID output changes too fast, make the inverter running stable.
FA-23
Twice Output Deviation
Positive Maximum Value
0.00%~100.00%
1.00%
○
FA-24
Twice Output Deviation
Reverse Maximum Value
0.00%~100.00%
1.00%
○
FA-23 and FA-24 respectively corresponding the maximum value of the absolute value of the output
deviation in forward and reverse.
FA-25
PID Integral Property
Unit’s digit: integral separation
0: Disabled
1: Enabled
Ten’s digit: whether stop integral after
output the limit
0: Continue integral
1: Stop integral
0x00
○
Integral separation
If set up integral separation is effective, then when the multifunction digital DI integral pause (function
32) is valid and PID integral stop operation, the PID only proportional and differential function
effectively.
When the integral separation selection for invalid, no matter whether the multi-function digital DI is
valid, integral separation is invalid.
Whether to stop the integral after output to the limit
After the PID operation output reached the maximum or minimum value, can selection whether to
stop the integral action. If selection for stop integral, then the PID integral stop calculation, which may
help to reduce the overshoot amount of PID.
FA-26
PID Feedback Lost
Detection Value
0.0%: Don’t judge feedback lost
0.1%~100.0%
0.0%
○
FA-27
PID Feedback Lost
Detection Time
0.0s~20.0s
0.0s
○
Summary of Contents for VD120 Series
Page 2: ......
