Wiring The Power Supply - Siemens SIMATIC ET 200S Operating Instructions Manual

Wiring and assembly
5.4 Wiring the ET 200S
5.4.9

Wiring the power supply

Required tools
Connect the power supply using a screwdriver with 3 mm blade width.
Power supply unit
You may only use PELV-type power supply units with a guaranteed electrically isolated
extra-low voltage (≤ 60 VDC).
Connection for power supply
The power supply connections for the 24 V power supply are located on the front of the
interface module. The connections have the following meaning:
① + 24 VDC from the power supply
② Ground of the power supply
③ + 24 VDC from the power supply for looping through
④ Ground of the power supply for looping through
Figure 5-11
The maximum cross-section of the connection is 2.5 mm
connection plug allows you to loop through the power supply without interruption even in
unplugged condition.
Procedure
1. Strip the wires to a length of 10 mm.
2. Insert the line into the round opening of the connection plug up to the endstop. (The
3. Insert the wired plug connection onto the power supply connection on the interface
94
Power supply connection
connecting plug is plugged into the power supply connection in the delivery condition.)
module.
. A strain relief is not present. The
2
Operating Instructions, 08/2008, A5E00515771-06
ET 200S