Rockwell Automation 1440-VSE02-01RA XM-122 gSE Vibration Module - Manual (Page 32)

Publication GMSI10-UM013D-EN-P - May 2010
22 Installing the XM-122 gSE Vibration Module
Connecting the Relays
The XM-122 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 78 for details.
Table shows the on-board relay connections for the module.
IMPORTANT
All XM relays are double pole. This means that each relay
has two contacts in which each contact operates
independently but identically. The following information
and illustrations show wiring solutions for both contacts;
although, in many applications it may be necessary to wire
only one contact.
TIP
The Expansion Relay module may be connected to the
module to provide additional relays. Refer the XM-441
Expansion Relay Module User Guide for wiring details.
IMPORTANT
The NC/NO terminal descriptions on page 20 correspond
to a de-energized (unpowered) relay.
When the relay is configured for non-failsafe operation, the
relay is normally de-energized.
When the relay is configured for failsafe operation, the
relay is normally energized, and the behavior of the NC and
NO terminals is inverted.