Connecting; Connecting The 24 Vdc Power Supply - Siemens SIMATIC HMI IPC577C Operating Instructions Manual

Connecting

6.1

Connecting the 24 VDC power supply

To be noted before you connect the device
Note the following in order to operate the device safely and according to regulation:
Power is on
The On/Off switch does not isolate the device from mains voltage.
Always disconnect the power cord to isolate the device from mains voltage.
The device should only be connected to a 24V DC power supply which satisfies the
requirements of safe extra low voltage (SELV). You will also have to connect a protective
earth conductor. The cable cross section must withstand the short-circuit current of the 24
VDC power source so that a short-circuit will not damage the cable.
Connect only cables with a minimum cross-section of 1.3 mm² (AWG16) and a maximum
cross-section of 3.3 mm² (AWG12).
NOTICE
The 24V DC power source must be adapted to the input data of the device (see the
technical specifications in the operating instructions).
NOTICE
If a CompactFlash card is used in the device, make sure that the card is seated correctly
before you connect it.
SIMATIC HMI IPC577C
Operating Instructions, 10/2010, A5E02368074-02
CAUTION
WARNING
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