Delta Modulon DPH Series User Manual page 97

Option 2: Installation of a 3-pole DC circuit breaker or DC isolated switch (per pole
+
N
-
External
Battery
Cabinet
(Figure 5-19: Installation of a 3-Pole DC Circuit Breaker or
DC Isolated Switch Connected in Series with a DC Fuse)
To save on your costs and installation space, the parallel UPSs (at maximum 8 units)
can share their connected external battery cabinet(s). For relevant information, please
refer to 3.4 Common Battery (Only for Parallel UPSs Connecting to the Same Ex-
ternal Battery Cabinet(s)).
WARNING:
external battery cabinet's breaker (Q5) to isolate the battery power from the
UPS completely.
2. A battery can present a risk of electric shock and high short-circuit
current. Servicing of batteries and battery cabinets must be performed
or supervised by qualified service personnel knowledgeable in batteries,
battery cabinets and the required precautions. Keep unauthorized
personnel away from batteries and battery cabinets.
External Battery Cabinet Alarm
When any 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
1 Battery Abnormal - Reversed
2 Battery Ground Fault
3 Battery Over Temperature
DC Fuse 3-Pole DC Circuit Breaker
or DC Isolated Switch
5-25
5 Installation and Wiring
+
N
UPS
-
Alarm
Sounds 50ms every second.
Sounds 50ms every second.
Sounds 50ms every second.