Omron JX - PID Feedback (FB) Upper;Lower Limit; PID Operation

4-24
4-2 Function Mode
4
Functions
PID Feedback (FB) Upper/Lower Limit
If the feedback value exceeds the upper limit set in C052, FBV, which is allocated to the multi-func-
tion output terminal, turns on. If the value falls below the lower limit set in C053, FBV turns off.
This is effective as a RUN command in operating multiple pumps.
PID Operation
P Operation
•Operation where the control volume is proportional to the target value
I Operation
•Operation where the control volume increases linearly according to time
D Operation
•Operation where the control volume is proportional to the variation ratio of the target value
•PI operation is the combination of the above P and I operations; PD is P and D operations; PID is
P, I and D operations.
Data Symbol Function name Status Description
07 FBV PID FB status output
ON
See the figure below.
Shifts output when exceeding the upper limit or
falling below the lower limit.
OFF
Available output terminals 11-CM2, AL2-AL0 (or AL1-AL0)
Required settings C021, C026, C052, C053
PID FB
upper limit
(C052)
PID FB
lower limit
(C053)
PID FB value
FW
FBV
ON
ON
OFF
OFF
Small
Target value
Control volume
Step transition
Large
A072
Ramp transition
Small
Large
A072
Large
Small
Target value
Control volume
A073
Large
Small
A073
Large
Small
Target value
Control volume
A074
Large
Small
A074