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Device maintenance and repair
8.3 Removing and installing hardware
8.3.4.3
Replacing the module of the redundant power supply unit 700 W
If a module of the redundant power supply unit is defective, you can continue to operate the
device until the device can be shut down in a controlled manner.
The replacement of one of the two modules of the redundant power supply unit can be
performed without shutting down the device.
Requirement
• An original spare part, i.e. a module of the redundant power supply unit of the same type.
You can find information on spare parts under "Hardware accessories (Page 32)".
Procedure
1. Use the status display ④ to determine which module is defective, see "Status displays of
power supply unit 700 W (2 modules, each 700 W, redundant) (Page 30)".
2. Disconnect the defective module from the line voltage.
Pull the power plug from the socket ① of the defective module.
3. Open the locking clip② and pull out the module by the handle ③.
4. Insert the new module and push it to the rear edge of the enclosure until it clicks into place
there.
5. Re-insert the power plug into the socket ① of the newly inserted module.
6. Check the safe state of the device. Check the correct function on the status display.
134
Workstation SIMATIC IPC RW-545A Operating
Instructions, 08/2023, A5E52943278-AA
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