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28 User Guide APC Silcon 60-80kW 208V/480V UPS
990-4035
Alarms and Events
5.5 Parallel Operation Alarms
The parallel operation alarm message is: Communication to parallel IF lost
In the event of a parallel operation alarm, all parallel operation functions controlled by
Advanced Power Management will be inactive. In such situations only simple hardware control
such as load-sharing, operation mode etc. is possible.
Correction of false alarm situations during service:
When one system is isolated for service, the above alarm message will apppear if two systems
still operating. To delete this alarm message re-program the station addresses on all systems
in the following sequence:
1 to max_number_system