GE 90-30 PLC Series Installation And Hardware Manual page 55

2.
THREAD ROLLING SCREWS
Figure 2-13. CPU 351 or 352 - Mounting the Shield Grounding Bracket and Wire
Note:
GFK-0356Q Chapter 2 Installation
The second method, which can be used for systems in noisy environments consists of installing
the green ground wire and the optional grounding bracket (part number 44C715646-001R01).
This bracket attaches to the CPU using two #4 thread-rolling screws (part number
N666P9004B6) and to the grounded enclosure using two #6 thread-rolling screws (part number
N666P13006B6). Two holes must be drilled in the enclosure for mounting this bracket. Also,
if the bracket will be attached to a painted surface, the paint should be removed down to bare
metal under the bracket to ensure good contact between the bracket and the surface. See the
next figure.
USE 2 #4
(N666P9004B6)
When the grounding bracket is used, pin 1 of the cable connector that plugs into the Port 2
connector should not be connected. A metal connector shell must be used on the cable for
this port, and the cable shield must be terminated at the metal shell instead of pin 1 of the
connector.
CPU351 or 352
44C715646-001R01
BRACKET
USE 2 #6
THREAD ROLLING SCREWS
(N666P13006B6
2
PAINT REMOVED WHERE
BRACKET MOUNTS TO PANEL
MOUNT ON
GROUNDED
ENCLOSURE
2-15