32 Rockwell Automation Publication IASIMP-QS023B-EN-P - December 2012
Chapter 1 Prepare the CompactLogix 5370 L3 Controller Hardware
Wire Power
1769-PA4 Power Supply
1. Set the V AC line input power switch behind the clear door to match your 120V or 240V
AC power source as directed by the DANGER label on the power supply.
The switch is shipped from the factory in the 240V AC position. Remove the switch label
that covers the connectors after setting the proper power switch.
2. Connect the ground screw of the power supply to the nearest ground or ground bus.
Use a 2.5 mm
2
(14 AWG) wire and keep the leads as short as possible.
3. Wire the power supply according
to the graphics shown here.
4. Turn on in com ing p ower.
WARNING: Verify that all incoming power is turned off before wiring power.
This symbol denotes a
protective earth ground terminal that
provides a low impedance path
between electrical circuits and earth
for safety purposes and provides
noise immunity improvement. This
connection must be made for safety
purposes.
NOT USED
NOT USED
120/240V AC (L1)
V AC COM (L2)
CHASSIS GROUND
Terminal Wiring Diagram
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