Specifications

SQ: 3-6
RS3: Service Quick Reference Guide
Power
Power Supply (With Battery Backup) Indicators and Controls (continued)
Item Function
OUTPUT
CURRENT
(Bar Graph LED)
(Red)
This is a series of LEDs indicating the relative current being delivered
to the DC distribution system by the AC/DC power supply. It
indicates the load share provided by the power supply with a readout
in 3 amp intervals. Power supplies should be within 1 to 2 LEDs of
the others on the DC distribution system for proper load sharing.
PS FAULT
LED (DS1)
(Red)
The 30 Volt DC output has dropped below 26 Volts. The power
supply alarm is actuated when this LED is on.
PS NORM
LED (DS2)
(Green)
The DC output voltage and battery status (if the battery is used with
the header jumper enabled) is in normal working condition.
BATT FAULT
LED (DS3)
(Red)
The battery has failed the periodic load test. Approximately once
every 24 hours the unit automatically tests the batteries under a 16
amp load for five s econds. If battery voltage drops below 20 Volts
DC (24 Volts nominal), the BATT FAULT LED will light, the PS NORM
LED will go out, and the battery fault alarm will activate. The battery
fault alarm will also activate if the battery test fails.
AC/DC Power Supply (With Battery Backup) Fuse
Fuse
FRSI
Part No.
Bussman
Part No.
Littelfuse
Part No.
Characteristics
F1 G50527-0004 -- -- SLC50
50 A 300 V
Time Delay
F2 50P03980007 SC--30 -- --
30 A 300 V
Time Delay