Rockwell Automation 1606-XLP XM Electronic Overspeed Detection System - Manual (Page 15)

Publication GMSI10-UM015B-EN-E - June 2011
Installing the XM Electronic Overspeed Detection System 15
Figure 2.1 is an illustration of wiring modules using separate power
connections.
Figure 2.1 XM Modules with Separate Power Connections
Grounding Requirements
Use these grounding requirements to ensure safe electrical operating
circumstances, and to help avoid potential emi and ground noise that can cause
unfavorable operating conditions for your XM system.
DIN Rail Grounding
The XM modules make a chassis ground connection through the DIN rail.
The DIN rail must be connected to a ground bus or grounding electrode
conductor using 8 AWG or 1 inch copper braid. See Figure 2.2 on page 16.
Use zinc-plated, yellow-chromated steel DIN rail (Allen-Bradley part no.
199-DR1 or 199-DR4) or equivalent to assure proper grounding. Using other
DIN rail materials (e.g. aluminum, plastic, etc.), which can corrode, oxidize, or
are poor conductors can result in improper or intermittent platform
grounding.
Power
Supply
DYNAMIC MEASUREMENT
1440-VST02-01RA
DYNAMIC MEASUREMENT
1440-VST02-01RA
POSITION
1440-TSP02-01RB
MASTER RELAY
1440-RMA00-04RC
EXPANSION RELAY
1440-REX00-04RD
EXPANSION RELAY
1440-REX00-04RD
EXPANSION RELAY
1440-REX00-04RD
EXPANSION RELAY
1440-REX00-04RD