Connecting The (24 V) Dc Power Supply - Siemens SIMATIC HMI IPC677C Operating Instructions Manual

5.3

Connecting the (24 V) DC power supply

Note before connecting the device
The device should only be connected to a 24 V DC power supply which meets the
requirements of safe extra low voltage (SELV) according to IEC/EN/DIN EN/UL 60950-1. A
protective conductor must also be used. The conductors must withstand the short-circuit
current of the 24 V DC power source, so that a short-circuit will not damage the cable. Only
connect cables with a minimum cross-section of 1.3 mm
section of 3.3 mm
Note
The 24 V DC power source must be adapted to the input data of the device (see
specifications).
Connecting
Steps for connecting the device to the 24 V DC power supply
1
2
3
SIMATIC HMI IPC677C
Operating Instructions, 04/2013, A5E02722710-04
WARNING
(AWG12).
2
Ensure that the ON/OFF switch is in the '0'
(OFF) position to prevent unintentional startup
of the device when connecting it to the 24 V
power supply.
Switch off the 24 V DC power source.
Insert the DC power plug.
①
DC 24 V
②
ground
③
protective conductor
5.3 Connecting the (24 V) DC power supply
(AWG16) and a maximum cross-
2
Connecting
49