MGE UPS Systems EPS 7000, Installation Manual

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EPS 7000 Single and Shared Systems
page 2 — 10 Description
Remote Alarm Status Panel (RASP)
For single-module systems, a remote alarm status panel (RASP) is available. The RASP allows the following status
indications to be viewed from a remote location:
◗
UPS on line
◗
UPS on battery
◗
UPS on bypass
◗
UPS on maintenance bypass
◗
Low battery shutdown
◗
Charger on
◗
Overload
◗
Charger fault
◗
Inverter fault
◗
Transfer lockout
◗
Summary alarm
Additionally, the RASP contains an audible alarm and two pushbuttons:
◗
UPS test/reset pushbutton
◗
Audio reset pushbutton
Remote Summary Alarm Panel (RSAP)
For single-module systems, a remote summary alarm panel (RSAP) is available. The RSAP allows the following
status indications to be viewed from a remote location:
◗
UPS summary alarm
◗
UPS on battery
Additionally, the RSAP contains an audible alarm and two pushbuttons:
◗
Alarm test/reset pushbutton
◗
Audio reset pushbutton
2.2 SSC Major Internal Components
The static switch cabinet (SSC) provides an electrical path between the output of the UPS modules and the load.
When the UPS modules are off, the SSC provides power to the load from the bypass AC input source (mains 2). Up
to six (6) modules can be connected to the SSC, supporting loads as great as 4000 amps. UPS modules may be
turned off individually for maintenance, provided that the remaining modules can support the load.
The SSC incorporates a static bypass switch. A wrap-around circuit breaker (Q2S) in the SSC switches between the
UPS module output and the bypass AC input source (when the UPS modules are off). Optionally, the SSC can be
provided with its own maintenance bypass cabinet (MBP), allowing the SSC and/or any attached UPS module to be
serviced while the load is supplied via the maintenance bypass AC input source.