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If the controller initiates a safety shutdown, it displays the fault on the LID display with a
primary and a secondary message, and energizes an alarm relay in the starter and blinks the
alarm light on the control center. The alarm is stored in memory and can be viewed in the PIC
alarm table along with a message for troubleshooting.
To give a better warning as to the operating condition of the machine, the operator also can
define alert limits on various monitored inputs. Safety contact and alert limits are defined in
Table 3. Alarm and alert messages are listed in the Troubleshooting Guide section.
CAUTION
CAUTION
!
If compressor motor overload occurs, check the motor for grounded or open
phases before attempting a restart.
Click here for Table 3 — Protective Safety Limits and Control Settings
(and figure following table)