Pid Function - Omron SYSDRIVE MX2 SERIES User Manual

5-6 Operation Functions

PID Function

This function enables process control of such elements as flow rate, air volume, and pressure.
To use this function, set A071 to "01: Enabled" or "02: Reverse output enabled."
You can disable the PID operation in progress using an external signal.
To use this function, allocate "23: PID disabled" to any of the multi-function inputs. While the
PID terminal is turned ON, the Inverter disables the PID function and outputs normally.
You can limit the PID output under various conditions.
Refer to "Maximum Frequency" on page 5-28, "Frequency Limit" on page 5-60 and PID
Variable Range Limit (A078).
Parameter
5
5-73
Function name
No.
A071 PID Selection
A072 PID P Gain
A073 PID I Gain
A074 PID D Gain
A075 PID Scale
PID Feedback
A076
Selection
PID Deviation
A077
Reverse Output
PID Variable Range
A078
Limit
PID Feedforward
A079
Selection
PID Sleep Function
A156
Operation Level
Data
00: Disabled
01: Enabled
02: Reverse output enabled
0.00 to 25.00
Proportional gain
0.0 to 3600.
Integral gain
0.00 to 100.
Differential gain
0.01 to 99.99
For unit conversion of PID Feedback
Value Monitor (d004)
00: FI (current)
4 to 20 mA
01: FV (voltage)
0 to 10V
02: Modbus communication (Modbus-
RTU)
03: Pulse train frequency
10: Operation function output
00: Disabled
01: Enabled (reversing of deviation
polarity)
0.0 to 100.0
Variable range with reference to the
target value
00: Disabled
*2
01: FV (voltage)
0 to 10V
*2
02: FI (current)
4 to 20 mA
0.0 to 400.0(1000.)
Operation stops once the PID output
drops to below the operation level.
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
Default
Unit
setting
00
1.00
1.0
0.00
1.00
00
*1
00
0.0
00
0.00 Hz
−
−
s
s
−
−
−
%
−