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Troubleshoot the Power Supply
All ControlLogix power supplies have a green status indicator that remains ON during normal operation.
Standard Power Supply
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.
See
step 4 on page 6
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.
Slim Power Supply
Status Indicator
Rockwell Automation Publication 1756-IN619E-EN-P - September 2019
ControlLogix Power Supply
Status Indicator
9
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