IDEC MicroSmart Pentra - Manual (Page 145)

T ROUBLESHOOTING
8-4 FC5A MicroSmart PID Module User’s Manual FC9Y-B1283
The PID Module input does not operate normally.
Input does not operate normally.
Is the input wiring correct? Correct the input wiring.
Does the sensor
malfunction?
Is the sensor or external
device connected to the PID
module securely?
Connect them securely.
Is the sensor burnt
out or the input signal source
abnormal?
Are sensor
specifications suitable with
the PID module?
Use a sensor with suitable
specifications.
Does AC leak into the
sensor circuit?
Call IDEC for assistance. END
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Replace the sensor.
Replace the sensor if it is burnt
out or disconnected.
(Make sure of input status.) *
Use an ungrounded type sensor.
Is there equipment that
interferes with or makes noise
near the PID module?
Take countermeasures against
inductive interference or noise.
Are the input type and
unit selected correctly?
Is the PV correction
value suitable?
Set it to a suitable value.
NO
NO
NO
YES
YES
Select them correctly.
YES
*1: Refer to “Input Status Checking” on page 8-5.