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Connecting the relays – Rockwell Automation 1440-VAD02-01RA XM-123 Aeroderivative Module User Manual

Page 29

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Publication GMSI10-UM003D-EN-P - May 2010

21

Figure 2.8 DC Input Power Supply Connections

Connecting the Relays

The XM-123 has both Normally Open (NO) and Normally Closed (NC) relay
contacts. Normally Open relay contacts close when the control output is
energized. Normally Closed relay contacts open when the control output is
energized.

The alarms associated with the relay and whether the relay is normally
de-energized (non-failsafe) or normally energized (failsafe) depends on the
configuration of the module. Refer to Relay Parameters on page 64 for details.

-

24V dc

Power

Supply

+

-

IMPORTANT

A Class 2 circuit can be provided by use of an NEC Class 2
rated power supply, or by using a SELV or PELV rated
power supply with a 5 Amp current limiting fuse installed
before the XM module(s).

IMPORTANT

24Vdc needs to be wired to terminal 44 (+24 V In) to
provide power to the device and other XM modules linked
to the wired terminal base via the side connector.

ATTENTION

The power connections are different for different XM
modules. Refer to the installation instructions for your
specific XM module for complete wiring information.