Connecting The 24 Vdc Power Supply - Siemens SIMATIC IPC627E Operating Instructions Manual

3.3.3.2

Connecting the 24 VDC power supply

Safety regulations - connecting cable
Use only AC or DC connecting cables which comply with the local safety regulations.
Otherwise, there is a risk of fire and electric shock. This can result in personal injury or
property damage.
• Ensure that the AC or DC connecting cables comply with the safety regulations of the
• Connect the protective conductor in accordance with the operating instructions.
Risk of electric shock
The on/off button and on/off switch do not fully disconnect the device from the supply
voltage.
There is also a risk of fire if the device or connecting lines are damaged.
• Always fully disconnect the device from the supply voltage before performing work on
• For control cabinet mounting: Use a central, easily accessible AC circuit breaker close
• When you install the device, make sure that the power supply connector is easily
Note
Safety extra-low voltage (SELV)
• The device must 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 61010-2-
201. 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
cross-section of 3.3 mm
Requirements
● You have observed the information under "Country-specific information on supply voltage
(Page 45)".
● The 24 V DC power source must be adapted to the input data of the device
(see Technical specifications (Page 109)).
SIMATIC IPC627E
Operating Instructions, 12/2018, A5E44297201-AA
WARNING
country in which the device is installed and bear the marks required in each case.
WARNING
the device or when the device will not be used over an extended period of time.
to the device, if possible.
accessible.
(AWG12).
2
Installing and connecting the device
3.3 Connecting the device
(AWG16) and a maximum
2
49