Rockwell Automation Publication 1512A-UM101B-EN-P - December 2021
49
Chapter 5 Maintenance
Power Lock-out Procedure
1. Disconnect and lock out all feeder power supplies to the starter.
2. Move the isolation switch handle to the OFF position.
3. If the unit is equipped with power factor correction capacitors, stored
energy must be dissipated before entering the power cell. Wait at least
5 minutes before entering the power cell or dissipate the power using the
following procedure:
a. Verify that the isolation switch handle is in the OFF position.
b. Open the low voltage door.
c. Plug the appropriate power supply (120V or 230V) into the auxiliary
power receptacle on the control panel (see
d. Move the control switch to the TEST position.
e. Electrically operate the contactor by pushing the START button on the
unit or at a remote location.
f. Disengage the contactor and move the control switch to the NORMAL
position. Disconnect the external power supply.
g. Complete the Power Lockout procedure.
ATTENTION:
Use suitable personal protective equipment (PPE) per
local codes or regulations. Failure to do so may result in severe
burns, injury, or death.
ATTENTION:
Always perform the power lockout procedure before
servicing the equipment. Failure to do so may result in severe burns,
injury, or death.
ATTENTION:
The following procedure requires moving the isolation
switch handle to the ON position. To avoid shock hazards, disconnect
and lock out incoming power before proceeding with servicing the
equipment. Failure to lock out incoming power will result in a live
power cell once the isolation switch handle is in the ON position and
may cause severe burns, injury, or death. Rockwell Automation does
not assume any responsibility for injuries to personnel who have not
completed the following safety procedure prior to servicing the
equipment.
