11.7Common Battery Racks
A Common battery rack can be used to supply the DC input to the Parallel Capacity/Redundant system UPS modules. This common rack would be used in place of the individual racks for each module. You can enhance the protection time provided by your Parallel Capacity/Redundant system by adding one or more battery racks. The battery racks should be equipped with sealed
11.8External Battery Disconnect for Common Battery Racks
An optional external DC circuit breaker provides a manual means of disconnecting a battery rack from the UPS modules in the Parallel Capacity/Redundant system. The circuit breaker is enclosed in a
The breaker switch should be set to ON for normal UPS operation when DC power is available at the UPS. When service personnel are performing maintenance on the UPS or battery cabinet, the switch should be set to OFF.
Note 1: There is no DC disconnect device within the UPMs.
Note 2: The DC input to the UPM is protected by internal fuses F21 and F22.
Note 3: The UPM DC disconnect trip signal from TB4, points 1 and 2 (shunt trip) or TB4, points 1 and 3 (UV trip) must be connected to the DC source disconnect device(s). Each UPM must have a separate disconnect device.
11.8.1ModBus Cards
The Powerware ModBus Card is an optional
Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM | ||
| 164201373 Rev. A | 092402 |
