Connecting to the supply voltage (SELV)
● The power supply is connected using a 4-pin plug-in terminal block.
● The power supply can be connected redundantly. Both inputs are isolated. There is no
distribution of load. When a redundant power supply is used, the power supply unit with the
higher output voltage supplies the IE Switch X-300 alone.
● The power supply is connected over a high resistance with the enclosure to allow an
ungrounded set up. The two power inputs are non-floating.
Terminal block assignment (4-pin)
Table 6-2
Pinout of the 24 V safety extra-low voltage (SELV)
Pin number
Assignment
Labeling (example)
Pin 1
L1+ (24 V DC)
Pin 2
M1
Pin 3
M2
Pin 4
L2+ (24 V DC)
Connecting
6.6 Connecting the external 24 VDC power supply
SCALANCE X-300M PoE
Compact Operating Instructions, 11/2019, A5E02630810-13
49
Содержание SIMATIC SCALANCE X-300M PoE
Страница 10: ...Introduction SCALANCE X 300M PoE 10 Compact Operating Instructions 11 2019 A5E02630810 13 ...
Страница 12: ...Safety notes SCALANCE X 300M PoE 12 Compact Operating Instructions 11 2019 A5E02630810 13 ...
Страница 30: ...Device description 4 5 C PLUG SCALANCE X 300M PoE 30 Compact Operating Instructions 11 2019 A5E02630810 13 ...
Страница 62: ...Dimension drawings SCALANCE X 300M PoE 62 Compact Operating Instructions 11 2019 A5E02630810 13 ...
Страница 74: ...Index SCALANCE X 300M PoE 74 Compact Operating Instructions 11 2019 A5E02630810 13 ...