110 Rockwell Automation Publication 6000-UM002E-EN-P - April 2018
Chapter 5 Preventative Maintenance and Component Replacement
Inspect AC/DC Power Supplies
Ensure the input and output terminal connections are tight. 
Use a voltmeter to check the output voltage. A green LED indicates normal 
operation.
Figure 42 - AC/DC Power Supplies
Replace AC/DC Power Supplies
PS1, PS2, PS5, or PS6 Power Supplies
1. Open the LV Control cabinet door. 
2. Loosen the top and bottom terminal screws and remove the wires on the 
PS1, PS2, PS5, or PS6 power supplies.
ATTENTION: Always perform Power Lockout procedure before servicing 
equipment. Verify with a hot stick or appropriate voltage measuring device that 
all circuits are voltage free. Failure to do so may result in severe burns, injury, or 
death.