Emheater EM12 Series, User Manual

Page: 88 / 166

EM12 User’s Manual 5. Description of Function Codes
83
Diagram 5-26 PID parameters switchover
C0-15
PID integral property
Default
00
Setting
Range
Unit's digit: Integral separated.
0 Invalid
1 Valid
Ten's digit: Whether to stop integral operation when the output reaches the limit.
0 Continue integral operation
1 Stop integral operation

Integral separation
If integral separation is set to valid, and the DI is defined as function 22"PID integral pause". In this case, only
proportional and differential operations take effect.
If integral separation is set to invalid, no matter whether the DI set with function 22"PID integral pause" is ON or not,
integral separation remains invalid.

Stop integral
After the output has reached to maximum or minimum limit in PID operation, we can select to stop the integral
operation or not. If we select to stop, it may help to reduce the PID overshoot.
C0-16
PID initial value Default 0.0%
Setting Range
0.0%~100.0%
C0-17
PID initial value holding time Default 0.00s
Setting Range 0.00s~650.00s
When the frequency inverter starts up, the PID output initial value (C0-16) , and sustain the holding time (C0-17),
the PID start close-loop calculation .
Diagram 5-27 PID initial value function