Rockwell Automation 1440-PK02-05M2 XM-720 Machine Monitor - Manual (Page 26)

Publication GMSI10-UM001C-EN-E - June 2011
26 Installing the XM-720 Machine Monitor
Figure 2.12 Velocity Sensor Wirings
Connecting a Powered Sensor
The figure below shows the wiring of a powered sensor, such as Entek IRD
Model 544 or 580 Vibration Pickup, to the XM-720 back panel.
TYPICAL WIRING FOR COIL-BASED VELOCITY SENSOR
TO XM-720 BACK PANEL
Shield
Channel 1 Input Signal
Signal Common
Shield
Channel 2 Input Signal
17
18
19
20
21
22
Signal Common
Pin A - Si gnal
Pin B - Common
Cable shield not
connected at this end
Pin A - Signal
Pin B - Common
Cable shield not
connected at this end
IMPORTANT
You may ground the cable shield at either end of the cable.
Do not ground the shield at both ends. Recommended
practice is to ground the cable shield to one of the Chassis
GND terminals on the XM-720 terminal block and not at
the transducer. Any of the Chassis GND terminals on the
XM-720 terminal block provides a grounding point for the
cable shield.
IMPORTANT
Using the XM Serial Configuration Utility, make certain the
IEPE Power parameter is disabled. Refer to Transducer
Parameters on page 44.