Hunting Phenomenon Is Occurring While In On/Off Control Action; Hunting Phenomenon Is Occurring While In Pid, Pi, Pd, Or P Control Action - IDEC FC5A-F2M2 User Manual

Hunting phenomenon is occurring while in ON/OFF control action

Hunting phenomenon is
occurring while in ON/OFF
control action.
Is the output ON/OFF
hysteresis (*1) too narrow ?
NO
Call IDEC for assistance.
*1: For detail about the output ON/OFF hysteresis, see page 6-38.

Hunting phenomenon is occurring while in PID, PI, PD, or P control action

Hunting phenomenon is
occurring while in PID, PI, PD,
or P control action.
Is the control period
setting (*1) too short?
NO
Call IDEC for assistance.
*1: For detail about the control period, see page 6-46.
FC5A MicroSmart PID Module User's Manual FC9Y-B1283
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
YES
Set the output ON/OFF hysteresis
to a suitable value.
END
YES
Set the control period to a suitable
value.
END
T
ROUBLESHOOTING
8-3