5-21
5
Installation and Wiring
SROH'&FLUFXLWEUHDNHUSHUSROHYROWDJH9GF
(Figure 5-20: Installation of a 3-Pole DC Circuit Breaker)
External
Battery
Cabinet
-
N
+
-
N
+
UPS
3-Pole DC Circuit Breaker
NOTE:
1. Turn off the UPS and cut off the AC power source before performing battery/
battery cabinet replacement.
2. A battery can present a risk of electric shock and high short-circuit current.
3. Servicing of batteries and battery cabinets must be performed or supervised
by qualified personnel knowledgeable in batteries, battery cabinets and
required precautions. Keep unauthorized personnel away from batteries
and battery cabinets.
y
External Battery Cabinet Alarm
When an external battery cabinet connected to the UPS has the following problems, the
UPS system will sound an alarm. Please see the table below.
No.
External Battery
Cabinet Status
Alarm
1 Battery Ground Fault Long beep
2
Battery Cabinet
Over Temp
Sounds every 0.5 second
(Beep is ON for 0.25 second & Beep is OFF for 0.25
second).
3 Battery Test Fail
Sounds every 10 seconds
(Beep is On for 0. 5 second & Beep is OFF for 9.5
seconds).
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