INVT Goodrive 310-UL Series Operation Manual page 97

GD310-UL series VFD
Function
Name
code
PID value
P09.01
reference
PID feedback
P09.02
source
PID output
P09.03
feature
Proportional
P09.04
gain (Kp)
The setting target of procedure PID is a relative one,
100% of the setting equals to 100% of the response
of the controlled system.
The system is calculated according to the relative
value (0–100.0%).
Note:
Multi-step speed given, it is realized by setting PA
group parameters.
PROFIBUS, Ethernet and CANopen communication
setting need corresponding expansion cards.
When P09.00=0, set the parameter whose basic
value is the response value of the system.
The setting range: -100.0%–100.0%
Select the PID channel by the parameter.
0: AI1
1: AI2
2: AI3
3: HDI
4: MODBUS communication feedback
5: PROFIBUS/CANopen communication feedback
6: Ethernet communication feedback
7: Reserved
Note: The reference and feedback channel cannot
coincide, otherwise, PID cannot control effectively.
0: PID output is positive: when the feedback signal
exceeds the PID given value, the output frequency of
the VFD will decrease to balance the PID. For
example, the strain PID control during wrap-up
1: PID output is negative: When the feedback signal
is stronger than the PID given value, the output
frequency of the VFD will increase to balance the
PID. For example, the strain PID control during
wrap-down.
The function is applied to the proportional gain P of
PID input.
P determines the strength of the whole PID adjuster.
The parameter of 100 means that when the offset of
PID feedback and given value is 100%, the adjusting
Description
-89-
Function parameter
Default
Modify
value
○
0.0%
○
0
○
0
○
1.00