On-Line Power Fire Alarm Back-up UPS1481 UNIT, User Manual

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OnLine Power
(6002-1646) REV.
X8
3
Optional Output Isolation Transformer — This transformer is provided when the input and output
voltages are different, or multiple output voltages are required or an isolation at output is
required. The power to the primary of this transformer is selected either from UPS via output
static switch and from utility input via bypass static switch. The two static switches toggle on/off
as controlled by control board.
Battery Charger
— The battery charger maintains the batteries at full charge. After a battery
discharge, the charger will automatically recharge the batteries upon restoration of input power.
Battery Bank
— The battery bank consists of sealed, maintenance free batteries. The batteries
provide emergency power during power outages. The battery bank includes a breaker for
overcurrent protection and DC disconnect.
Input Contactor
— The input contactor serves several functions. First, the input contactor
provides connections for the input power to the UPS. Secondly, the contactor disconnects the
input line when an outage occurs so that there is no back feeding of power into the power line.
Thirdly, the contactor allows for automatic UPS operation upon a complete discharge of the
batteries. No operator intervention is required when power to the Lips is restored after a
complete battery discharge.
Control Electronics
— The control electronics, utilizing a micro_processor, for monitoring
provides all required logic signals within the UPS and interfaces with remote devices via the
interface ports such as the AS/400 interface.