APC 10-40kW 208/480V Installation Guide download pdf (Page 51)

51Installation Guide Silcon DP300E 208V/480V 10-80 kVA

7OY0002 US rev. 04

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Parallel operation alarms.

General.

If alarms concerning the parallel operation communication arise all parallel opera-

tion functions being controlled by the advanced management will be inactive. If the

advanced parallel operation functions are inactive, “only” the simple hardware

control of parallel operation, which controls load sharing, operation mode, etc., is

left.

Alarm texts conc. parallel operation.

In case of fault in parallel operation the following alarm will be active in the alarm

stack:

• “Communication to parallel IF lost”.

Other reasons for parallel operation alarm.

• When a system is isolated (PSU OFF) due to service this fault will as well arise

on the systems still operating. The reason is that the isolated system is no longer

to be found (active) in the parallel system. The fault can only be deleted by

turning on the PSU or by reprogramming the station addresses on all systems so

that the sequence is: 1 to max_number_system.

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 118 119

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APC 10-40kW 208/480V Installation Guide Page 51