Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 876)

Section 17
Installing 9/Series for CE Compliance
17-4
If you are using a High Density I/O module, you must wire all inputs and
all outputs on the module with MOV varistors for surge protection. Here’s
the type of MOV you need:
DC Power Voltage Manufacturer Part Number
24 V DC Harris V392A6
This device is available through several vendors, including Newark
Electronics. They can be contacted at:
Country Phone Number
United Kingdom (0420) 5433333
France (1) 30-90-59-90
Germany 02 15 4-9 59 60
USA 312-784-5100
Here is an example of a typical input and output connection on the high
density I/O module that uses MOV varistors:
CN61M or CN62M
Share current between the
four “common”pins
1
2
3
4
33
34
35
36
37
1
G
2
G
3
4
G
Terminal Board
G
C
I/O Device
MOV varistor
Typical Input or Output
17.2
Wiring a High-Density I/O
Module for CE Compliance