Pid Feedback Terminal Selection/Proportional Gain (P); Integral Time (I)/Differential Time (D); Integration’s Upper Bound Frequency; Group 8: High-Performance Parameter - Delta VFD-V Series User Manual

5.9 Group 8: High-Performance Parameter

08-00 PID Feedback Terminal Selection
Settings
Select an input terminal to serve as the PID feedback position. Please verify the
feedback position is different from the Frequency Set Point position.
08-01 Proportional Gain (P)
Settings 0.0~500.0%
This parameter determines the gain of the feedback loop. If the gain is large, the
response will be strong and immediate (If the gain is too large, vibration may occur). If
the gain is small, the response will be weak and slow.
08-02 Integral Time (I)
Settings 0.00~100.00 Sec
0.00: no integral
This parameter determines the speed of response for the PID feedback loop. If the
integral time is long, the response will be slow. If the integral time is short, the response
will be quick. Be careful not to set (I) too small, since a rapid response may cause
oscillation in the PID loop.
If the integral time is set as 0.00, Pr. 08-02 will be disabled.
08-03 Differential Time (D)
Settings 0.00~1.00 Sec
This parameter determines the damping effect for the PID feedback loop.
differential time is long, any oscillation will quickly subside. If the differential time is
short, the oscillation will subside slowly.
08-04 Integration's Upper Bound Frequency
Settings 0.0~100.0%
This parameter determines the integration's upper frequency limit while operating in the
PID feedback loop. (Limit = 01-00×08-04 %). During a fast Integration response, it is
possible for the frequency to spike beyond a reasonable point. This parameter will
limit this frequency spike.
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0 Disable
1 AVI (0~10V)
2 ACI (4~20mA)
3 AUI (+/-10V)
4 Clock (F/R--master speed)
5 Clock (F/R--A/B direction)
5-59
VFD-V Series
Factory setting 0
Factory setting 80.0
Factory setting 1.00
Factory setting 0.00
If the
Factory setting 100.0
5