MGE UPS Systems S3 Power Supply User Manual


 
Three alarm relays are provided. 1) UTILITY FAILURE, 2)
MINOR alarm, 3) MAJOR alarm. All relays are identical,
however the UTILITY and MINOR relays are wired as a
SPDT units, whereas the MAJOR alarm relay is a DPDT unit.
Relays are energized under normal operating condition. De-
energizing of the relays results in an ALARM signal as shown
in figure 1-2. Relay contact rating is 2 amperes maximum for
120/240VAC, 25 to 125VDC with a switched load of 50 Watts.
Connection diagram is clearly labeled on the rear panel for
these alarm relays. See Figure 1-2.
Figure : Remote Alarm Connection Diagram
1- 2
1.6.3 Remote Alarm
Indication
86-153061-00 1 — 9Introduction
Owner’s Manual