I/O Module Terminal Board Posts; Installing And Removing Terminal Boards With Holding Screws - GE 90-30 PLC Series Installation And Hardware Manual

I/O Module Terminal Board Posts

The terminal board has three posts on the left side. The top and bottom posts hold the terminal
board cover in place. The middle post keeps the terminal board wiring in place. If you do not
require it to hold the wiring in place, the middle post can be easily snapped off. (Be careful that you
do not inadvertently snap it off if you need it to keep your wiring in place.)

Installing and Removing Terminal Boards with Holding Screws

Discrete output modules IC693MDL730F (and later) and IC693MDL731F (and later) have a
special terminal board that is equipped with holding screws, shown in the figure below. These
screws prevent the terminal board-to-module connections from deteriorating in applications where
the PLC is subjected to severe vibration .
Figure 2-6. Terminal Board with Holding Screws
GFK-0356Q Chapter 2 Installation
Holding Screw
Removeable Terminal Board
Holding Screw
Removing: To Remove these terminal boards, first loosen the two holding screws on the front
of the terminal board, then follow the standard removal instructions in the section "Removing
an I/O Module's Terminal Board." The holding screws are held captive in the terminal board
and do not have to be completely removed.
Installing: To install these terminal boards, follow the standard installation instructions in the
section "Installing an I/O Module's Terminal Board," then tighten the two holding screws to 8
to 10 inch-pounds (1 Newton-meter) of torque.
A1 2 3 4 5 6 7 8
F
B1 2 3 4 5 6 7 8
2
A1
A2
A1
4
A3
A4
A2
6
8 A3
10
A4
12
A5
14
A6
16
A7
18
A8
20
IC693MDL730F
Hinged Cover
+
-
Module Catalog Number
2-7
2