Alarm dry contacts – MaxPower Corp Gamatronic Power+ SA User Manual
Page 82
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
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