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24 Programmable Relay Board
4.3.3 Reset the Contacts to Factory Default Settings
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Table 7 IBM AS/400
®
Contact Definitions
Relay Signal Name Description
1 or 5 Load on UPS N.O. Contact closes when the inverter is carrying the load
2 or 6 Load on Bypass N.O. Contact closes when the bypass line is carrying the load
3 or 7 Utility Failed N.O. Contact closes when the input power to the UPS fails and the battery is
providing power to the load
4 or 8 Low Battery N.O. Contact closes when power to the load is being supplied from the battery
and the estimated time remaining until shutdown is equal to or less than the low
battery alarm setting (see your UPStation S3 User’s Manual)
Table 8 Liebert Remote Status Panel Contact Definitions
Relay Signal Name Description
1 Load on Battery N.O. Contact closes when the input power to the UPS fails and the battery is
providing power to the load
2 Low Battery N.O. Contact closes when power to the load is being supplied from the battery
and the estimated time remaining until shutdown is equal to or less than the low
battery alarm setting
3 Load on UPS/
Load on Bypass
N.O. Contact closes when the inverter is carrying the load
N.C. Contact is closed when the load is on bypass
4 Alarm Present
(Summary Alarm)
N.O. Contact closes when an alarm message is present at the UPS front panel
5 New Alarm N.O. Contact closes for 30-45 seconds when a new alarm occurs
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