6. Parameter Setting and Functions
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-|Transparent setting guide|-
6.2.10 Proportional and integral constant set of feedback control
Proportional integral control: This is the combination of proportional control and integral control.
Proportional control operates soft control without overshoot and hunting for the set value.
Integral control modies oset automatically to reach the set value stably.
The optimal values of proportional constant and integral constant are set as factory defaults.
When changing proportional constant and integral constant, it may cause response delay in
feedback control or overshoot or hunting.
Proportional constant set[
P
], integral constant set [
I
] parameters are displayed when control
mode is constant voltage, constant current, constant power mode in phase control.
(1) Proportional constant set [
P
]
It compensates error from the target value proportionally.
If proportional constant value is small, response is fast and it may cause overshoot or hunting. If
proportional constant value is big, response is slow.
• Setting range: 0(0%) to 2000(100%)
(2) Integral constant set [
I
]
It compensates cumulative error from the target value.
The set integral constant is the time when proportional value and integral value are equal.
If integral constant value is small, response is fast and it may cause overshoot or hunting.
If integral constant value is big, response is slow.
• Setting range: 0.1 to 999.9 (unit: sec)
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