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l
Check pin
Description of power unit check pins
Signal
DC +24V is output at same time as +24V is
supplied from NC system to amplifier. At
this time, LED1 (green) lights.
RG
AL
Low-level signal (normally* open) when alarm
occurs inside power unit.
of the lamps from LED2 to LED5 will light.
CR
Signal which observes time constant of soft-
start circuit.
Description of signal
Activates contactor sequence.
At this time, one
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