9
013-015-B2 Rev C
4.6 Signals
LED Indicator -
The AlphaCap-665 has a bi-color LED displayed at two locations on the chassis. LED indications
are as follows:
•
Green (Solid): OK
•
Green (Flashing): Charging
•
Green / Amber (Alternating): Backup
•
Green / Red (Alternating): Over-charging, charging circuit failure
•
Red (Solid) or OFF: Module Fail.
Alarm Relay -
The AlphaCap-665 has a dry contact alarm relay to signal module failure. The alarm relay
is a normally closed (NC)configuration. During normal operating conditions, the relay is energized for open
circuit, and on alarm the relay de-energizes closing the relay. The alarm relay will trigger under the following
conditions:
•
Capacitor fully discharged
•
Low voltage input shutdown
•
Cap overcharge shutdown
•
Over temperature shutdown
•
Internal voltage reference error
•
Blown fuse.
