Rockwell Automation Publication 1756-IN619E-EN-P - September 2019
9
ControlLogix Power Supply
Troubleshoot the Power Supply
All ControlLogix power supplies have a green status indicator that remains ON during normal operation.
If the indicator turns OFF during operation, take these steps to troubleshoot the power supply.
1. Verify that the line voltage is within the specified range.
2. If the indicator remains OFF, turn off the power.
3. Loosen the screws that secure the power supply to the chassis.
for the location of the screws on the power supply.
4. Slide the power supply out so that the rear connector is disconnected.
5. Turn on the power.
6. Follow these steps if the indicator does the following:
• Turns ON:
a. Verify that the Backplane Power Load of the system is within the output rating of the power supply.
b. Turn off the power.
c. Reinstall the power supply in the chassis.
d. Turn on the power.
• Remains OFF: Contact your local Allen-Bradley distributor.
Status Indicator
Status Indicator
Standard Power Supply
Slim Power Supply