Franklin Fueling Systems GUARDIAN SPGC-220., Руководство по установке

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19
Open Circuit alarm
Error code flashes: OC
The Open Circuit alarm activates when there is a hook signal and the SPGC-220 does not detect
power consumption by the PMA (hook signal present without motor loading). This alarm is
typically caused by a broken output connection (wiring and/or relay) or a PMA thermal overload
due to a locked rotor event.
Press and hold the Reset button. Release the
button when the display goes blank.
Monitor for proper operation.
Use an Ohmmeter on its lowest setting to measure
the resistance across the M1 and M2 motor leads.
Lock and tag out the circuit breaker.
Did the
alarm clear?
A
Yes
No
Does the
measurement match
the values from orange
to black in TB004 for
the PMA HP?
Yes
No
Replace the SPGC-220
lower control board.
Reactivate the circuit breaker.
Monitor for proper operation.