Technical description
8 Connections
8.2 Auxiliary voltage
VM55.EN005
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8.2.
Auxiliary voltage
The external auxiliary voltage U
AUX
(40…265 V ac or V dc, or
optionally 18…36V dc) for the relay is connected to the
terminals X2: 1-2.
NOTE! When optional 18…36 Vdc power module is used the polarity is as
follows:
X2:1 positive, X2:2 neative.
8.3.
Output relays
The relay is equipped with 5 configurable output relays, and a
separate output relay for the self-supervision system.
Trip relays T1 – T4 (terminals X3: 10-17)
Alarm relay A1 (terminals X3: 7-9)
Self-supervision system output relay IF (terminals X3: 18-
20)
8.4.
Serial communication connection
The device can be equipped with optional communication
module. The physical location of the module is the lower option
card slot at the back of the relay. The modules can be installed
in the field (when power is first turned off).
There are three “logical communication ports” available in the
relay: REMOTE, LOCAL and EXTENSION. Depending on the
module type one or more of these ports are physically available
at the external connectors.
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