Chapter 7
MSC800
8011540/14B8/2019-06-06 Operating instructions | SICK 85
Subject to change without notice
7.5.2 Replacing the MSC800 power supply unit module
Risk of injury due to electrical current
The MSC800 is connected to the mains voltage (AC 100 ... 264 V / 50 ... 60 Hz).
Comply with standard safety requirements when working on electrical plants.
1. Switch off the supply voltage to the MSC800.
2. Disconnect and remove all cables from the power supply unit module. When doing so,
note the assignment of cables to connections.
3. Dismantle the defective power supply unit module from the cabinet of the MSC800. To
do this, use a suitable screwdriver to slide the black clip forward on the bottom of the
power supply unit module.
Fig. 36: Dismantling power supply unit module
4. Lift the power supply unit module and pull it forward and out of the bracket.
5. Place the new power supply unit module on the mounting rail of the MSC800 and press
down until the power supply unit module audibly engages.
6. Reconnect all the cables to the power supply unit module.
7. Switch on the supply voltage to the MSC800.
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