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How is PID programmed on the ATV320 drives?

How do you program PID on the ATV320 drives?

Product line:
ATV320, Altivar 320


To maintain pressure, temperature or flow within a system

Using the dial on the display, Push Enter and turn to CONF > FULL > FUN > PID.

Under the PID Regulator menu set:
PIF - PID feedback assignment

PIF1 - Min PID feedback
PIF2 - Max PID feedback
PIP1 - Min PID reference
PIP2 - Max PID reference
PII - Act. Internal PID ref
RPI - Internal PID ref

Min/Max PID Reference and Feedback are typically set to the range of the transducer.  Act. Internal PID turns on the internal setpoint.  Internal PID ref is the setpoint you want to maintain.  

You have a transducer, 4-20mA output with a 0-100PSI range wired to AI3 and COM.  You want to maintain 40PSI pressure.  The recommended settings would be:
PIF - AI3 
PIF1 - 0
PIF2 - 100
PIP1 - 0
PIP2 - 100
PII - yes
RPI - 40

This would maintain 40PSI (10.4mA feedback) in the system based on 4-20mA signal coming into AI3.  
Feedback < 10.4mA will increase motor speed. 
Feedback > 10.4mA will decrease motor speed.
If the VFD reaction needs to be reversed, set PiC, PID correct reverse, to YES.

The PID Regulator section of the ATV320 Programming Manual is attached. 

The full ATV320 Programming Manual can found here:
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