Kruger Ecowatt K320 Series Operation Manual page 200

Ecowatt Drive K320 series
®
Function
Name
code
PID output
P09.03 characteristics
selection
Proportional gain
P09.04
(Kp)
P09.05 Integral time (Ti)
Description
0: PID output is positive. When the
feedback signal is greater than the PID
reference value, the output frequency of
the VFD will decrease to balance the PID.
Example: PID control on strain during
unwinding.
1: PID output is negative. When the
feedback signal is greater than the PID
reference value, the output frequency of
the VFD will increase to balance the PID.
Example: PID control on strain during
unwinding.
The function is applied to the proportional
gain P of PID input.
P determines the strength of the whole PID
adjuster. The value 100 indicates that
when the difference between the PID
feedback value and given value is 100%,
the range within which the PID regulator
can regulate the
command is the max. frequency (ignoring
integral function
function).
Setting range: 0.00–100.00
It determines the speed of integral
regulation made on the deviation between
PID feedback and reference by PID
regulator. When the deviation between
PID feedback and reference is 100%, the
regulation of integral regulator (ignoring
integral and differential actions), after
undergoing continuous regulation during
this time period, can reach max. output
frequency (P00.03) or max. voltage
(P04.31).
The shorter the integral time, the stronger
the regulation intensity.
Setting range: 0.00–10.00s
-191-
Function parameter list
output frequency
and differential
Default Modify
0
○
1.80
○
0.90s
○