Connecting The Power Supply - Siemens SIMATIC KP400 Comfort Operating Instructions Manual

Mounting and connecting the HMI device
3.3 Connecting the device
3.3.3

Connecting the power supply

CAUTION
Safe electrical separation
Use only 24 VDC power supply units with safe electrical isolation in accordance with IEC
60364-4-41 or HD 384.04.41 (VDE 0100, Part 410), e.g. to PELV standard.
The supply voltage must be within the specified voltage range. Otherwise, malfunction at
the HMI device cannot be ruled out.
Applies to non-isolated plant configurations:
Connect the GND 24 V connection from the 24 V power supply output to equipotential
bonding for uniform reference potential. You should always select a central point of
termination.
Wiring diagram
The following figure shows the connection between the power supply and HMI device.
Note when connecting
The power supply terminal for connecting the power supply is contained in the accessory kit.
The power supply terminal is designed for cables with a maximum cross-section of 1.5 mm².
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Operating Instructions, 03/2012, A5E03404994-02
Comfort Panels