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Chapter 7. TROUBLESHOOTING
7- 1
Chapter 7. TROUBLESHOOTING
The followings explain errors that could occur during operating the PID control module and their troubleshooting.
7.1 Errors Indicated by RUN LED Flickering
Errors indicated by PID control module RUN LED flickering are given below.
RUN LED Status Error Type Loop RUN LED status
Flickering
(cycle: 0.1 sec)
WDT Error Loop “0” RUN LED ON
System Error All Loops RUN LED OFFFlickering
(cycle: 0.2 sec)
Buffer Memory Error Loop “1” RUN LED ON
7.2 Troubleshooting Procedure
7.2.1 RUN LED Flickering
7.2.2 RUN LED Off
RUN LED flickering
Is the PID control module is correctly mounted on the base unit?
Mount correctly the PID control module.
The PID control module hardware defect. If the loop run LED
is turned ON, write down their error numbers and see Section
7.2.5.
Is the PID control module is correctly mounted on the base unit?
Mount correctly the PID control module.
See Section 7.2.5.
RUN LED off