12
Pin #
Function
Comment
1
Battery Test Fail NC
Battery OK
2
Battery Test Fail Common
3
Battery Test NO
Battery Test has failed
4
No connection
5
No connection
6
AC Fail NC
AC Failure has occurred
7
AC Fail Common
8
AC FAIL NO
Operating Normally
Power Management Package
SEI’s Power Management Package (PMP) for the SEI DC-UPS provides a variety of
functions necessary to monitor and control output power to DC powered devices, as well
as maximize the efficiency and reliability of the power systems and battery backup.
Ethernet communication is accessed via a panel-mounted standard RJ45 connector. Two
Ethernet interfaces are provided to monitor and control the DC-UPS. A web page
interface that can be viewed with any Internet browser is available for easy system status
checks and fast system configuration tasks. An SNMP interface provides the ability to
continuously monitor the DC-UPS status with a Network Management System (NMS)
and to receive instantaneous notification of DC-UPS status changes and alarms via
SNMP traps.
REPAIR AND MAINTENANCE
The SEI DC-UPS is engineered to operate unattended and with low maintenance overhead
for extended periods of time. Although the electronics within the DC-UPS require no
routine maintenance, the battery pack will have to be replaced periodically. When the unit
indicates a Battery Test Failure via the front panel LED and the Alarm Contact Closure, the
battery pack should be replaced immediately to ensure continued back-up power operation.
The battery pack can be removed and replaced without taking the power unit off-line.
Follow the procedures outlined in the mounting instructions above to remove and re-install
the battery pack.
STORAGE
The DC-UPS may be stored at temperatures of 25
C or below for up to six months. The
DC-UPS must be powered up for at least 48 hours every six months to maintain the
batteries. For storage temperatures between 26
C and 40
C, the un-powered storage time
must not exceed three months. For storage temperatures above 40
C, the un-powered
storage time must not exceed one month. Failure to maintain the batteries will result in
decreased battery capacity, decreased battery life and battery failure.
Note: The side panel battery fuse must be installed to charge the battery pack.
