Mitsubishi Electric FR-A800 Series Beginner's Manual page 95

Appendix
External setpoint signal
Source logic
Power
supply
For the PID controller application using the configuration shown above you must also set the inverter
parameters shown in the table below, in addition to the basic parameters.
Parameter
* In a pressure control application you increase pump speed when the actual value is smaller than the setpoint
value.
Frequency Inverters - Beginner's Guide
I>
STF
Start
X14
Enable PID
controller
Setpoint
1 kΩ/2 W
Function
180 RL terminal function selection
128 PID action selection
Frequency inverter
L1/L2/L3 UVW
STF
RL
PC
10
2
5
4
0 24 V
Power supply for
transducer
Setting
„14" (enable PID control)
„20" (reverse action)*
Sample applications (PID controller)
Water outlet
M1
Water inlet
Transducer
(pressure --> current)
-
p
Ι
+
A - 23