S1 series standard inverter
-137-
Function
code
Name
Detailed parameter description
Default
value
Modify
This parameter determines the target reference
channel of process PID.
0: Keypad (P09.01)
1: AI1
2: AI2
3: AI3 (up to 2.2kW)
4: High-speed pulse HDI/HDIA
5: Multi-step
6: Modbus communication
7 - 12: Reserved
The set target value of process PID is relative
value, the set 100% corresponds to 100% of the
feedback signal of controlled system.
The system operates based on the relative value
(0
–100.0%)
P09.01
Pre-set PID
reference of
keypad
Users need to set this parameter when P09.00 is
set to 0, the reference value of this parameter is
the feedback variable of the system.
Setting range: -100.0%
–100.0%
0.0%
○
P09.02
PID feedback
source
This parameter is used to select PID feedback
channel.
0: AI1
1: AI2
2: AI3 (up to 2.2kW)
3: High-speed pulse HDI/HDIA
4: Modbus communication
5 - 10: Reserved
Note:
The reference channel and feedback
channel cannot overlap; otherwise, PID cannot be
controlled effectively.
0
○
P09.03
PID output
characteristics
0: PID output is positive characteristic: namely,
the feedback signal is larger than the PID
reference, which requires the inverter output
frequency to decrease for PID to reach balance,
eg, tension PID control of winding
1: PID output is negative characteristics: namely
the feedback signal is less than PID reference,
which requires inverter output frequency to
increase for PID to reach balance, eg, tension PID
0
○
