Danfoss VFD500-090G/110PT4

Chapter 5 Function code VFD500 high performance vector control frequency inverter user manual
P40.29
PID deviation
limit
0.0%
☆
P40.30
PID differential
limit
0.00%～100.00%
1.00%
☆
P40.33
PID feedback
filter time
0.000～30.000s
0.010s
☆
P40.34
PID output filter
time
0.000～30.000s
0.010s
☆
P40.35
Detection value
of PID feedback
loss ( lower limit)
0.0%(no detection )～100.0%
0.0%
☆
P40.36
Detection time of
PID feedback
loss
0.000s～30.000s
0.000s
☆
P40.37
Detection value
of PID feedback
loss( upper limit)
0.0%～100.0%(no detection)
100.0%
☆
This function is only valid when P40.39 = 0 which is not calculated. The PID output is reset after the inverter
stops. If P40.28 ≠ 0, when the inverter runs, the PID output is equal to the initial value of PID and keeps the time
of P40.28.
!
PID initial value function diagram
0.0%～100.0%
The output of PID system is relative to the
maximum
deviation of the close loop reference. As
shown in the
diagram below, PID adjustor stops to work
during the
deviation limit. Set the function properly to
adjust the
accuracy and stability of the system.
!
100