Cutler-Hammer D50 - Run Check

134 D50 PLC User's Manual
Run Check
*Be certain to save the program before clearing the PLC program so it is not lost.
RUN Check Flowchart
Is RUN LED On?
Is the controller
mode switch set
to RUN?
Set mode switch to RUN
No
Yes
No
END
Place in Run
using GPC - Is RUN
LED On?
Yes
Yes
No
Go to the Error
Check flowchart
Is the ERR
LED illuminated?
Yes
No
Set the controller mode
switch to STOP
Clear the PLC program
using GPC*
Set the controller mode
switch to RUN
Is the RUN LED
illuminated?
No
Yes
Check the PLC program,
and reload
Is the ERR LED
illuminated?
No
Yes
Go to the Error
Check flowchart
Replace the controller
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