Siemens SIMATIC 6ES7158-3MU10-0XA0 Hardware Installation And Operating Manual page 32

Connection for power supply
The power supply connections for the 24 V power supply are located on the front of the
PN/MF Coupler. The connections have the following meaning:
Table 4- 1 Connector assignment of power supply for the PN/MF Coupler
View
Connector PS1
on X80
X80/1L+ and X80/2L+ each have internal jumpers
1
X80/1M and X80/2M each have internal jumpers
X81/1L+ and X81/2L+ each have internal jumpers
X81/1M and X81/2M each have internal jumpers
Maximum 10 A permitted.
2
The maximum cross-section of the connection is 2.5 mm
connection plugs offer you the option of looping the power supply uninterrupted, even in
unplugged state.
Procedure
To connect the power supply, follow these steps:
1. Strip 8-10 mm of insulation from the wires.
2. Press the spring release and insert the cable into the round opening of the connection plug
as far as it will go. (The connection plugs are plugged into the power supply connection in
the delivery state.)
If you have a redundant power supply of the PN/MF Coupler, connect the second power
supply to the second connection plug.
If you are using only one voltage source, it is preferable to connect it to PS1.
PN/MF Coupler
Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
Connector PS2 Connector
PS1
on X81
1
2
3
4
Signal name Description
1
Connector
PS2
1L+ 1 1L+ + 24 V DC of the supply voltage
1M 2 1M Ground of the supply voltage
2M 3 2M Ground of the supply voltage for loop-
through
2L+ 4 2L+ + 24 V DC of the supply voltage for loop-
through
4.3 Connecting the power supply
2)
2)
. A strain relief is not present. The
2
Connecting
31