Mount the controller, Panel mount the controller – Rockwell Automation 1768-L45S Compact GuardLogix Controllers User Manual
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Rockwell Automation Publication 1768-UM002C-EN-P - April 2012
Chapter 2
Install the Controller
•
Up to eight 1769 Compact I/O modules can reside on each side of a 1769
power supply in a remote bank. Consult the module’s specifications for its
distance rating.
•
The type of controller determines the maximum number of 1768 modules
that can reside in the local bank and the maximum number of 1769 I/O
modules that can reside in one local and up to two remote banks.
Mount the Controller
You can mount the controller to a panel or on a DIN rail.
Panel Mount the Controller
Follow these steps to mount your controller by using the panhead screws.
1.
Connect the CompactLogix modules together as shown in
Controller on a DIN Rail on page 23
.
2.
Use the controller as a template and mark pilot holes on your panel.
3.
Drill the pilot holes for M4 or #8 screws.
4.
Use M4 or #8 screws to mount the controller to your panel with 1.16 N•m
(10 lb•in) of torque.
5.
Ground the module on a ground bus with a dedicated earth ground stake.
6.
Connect the ground bus to a functional earth ground on the panel or a
DIN rail.
IMPORTANT
1769 power supplies must be separated from the 1768 series
processor by a bus extension cable. Never put a 1769 power supply in
the 1768 backplane or the controller will generate a major fault that
cannot be cleared until you remove the 1769 power supply.
Controller
Max Local 1768 Modules
Max 1769 I/O Modules (local and remote)
1768-L43S
2
16
1768-L45S
4
30
IMPORTANT
Do not use screws if using a DIN rail to mount the controller. You can
break the mounting tabs if you screw the controller to a panel while it
is on a DIN rail.
ATTENTION: During mounting of all devices, be sure that all debris
(such as metal chips or wire strands) is kept from falling into the
controller or I/O modules. Debris that falls into the controller or
modules could cause damage while the controller is energized.