Alarm dry contacts – MaxPower Corp Gamatronic Power+ SA User Manual

Page 82

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Gamatronic Electronic Industries Ltd.

16. ALARM DRY CONTACTS

The rear panel of the UPS contains a standard RS232 port labeled ALARM. This port
is an interface to the Alarm Dry Contacts. The Alarm Dry Contact port is shown
below.

The Alarm Dry Contacts can be used to notify a computer or another system when
certain events take place on the P

OWER

+

SA UPS system.

The Alarm Dry Contacts can report any of three conditions, as described in the
following table.

Alarm Condition

State of Dry Contacts

No input voltage to the
rectifier

There is a voltage between pin 3 and pin 4.
This circuit is normally open.

Battery voltage is low

There is a voltage between pin 5 and pin 4.
This circuit is normally open.

Any alarm condition
exists

There is a voltage between pin 7 and pin 8.
This circuit is normally open.

POWER+ SA User Guide (UL), Release 1.0

76

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