Siemens SIMATIC ET 200M Operating Instructions Manual page 26

Brief instructions on commissioning
2.1 Commissioning on PROFIBUS DP
2.1.3 Wiring the ET 200M
Mounting rail
1. Connect the rail to the protective conductor. An M6 screw is provided on the rail for this
Power supply and IM 153-2
1. Open the front doors of the PS and IM.
2. Undo the strain-relief assembly on the PS 307. Strip the power supply cable.
3. If necessary, attach wire end ferrules (in the case of multi-conductor cables). Then
4. Screw the strain-relief assembly tight.
5. Insert the jumper in the PS 307 and the IM 153-2 and tighten it (refer to following figure).
6. Check that the switch for selecting the mains voltage is set correctly to your mains
7. Insert the PROFIBUS DP cable between the DP master (2nd DP interface) and the IM
24
purpose.
Minimum cross-section from the conductor to the protective conductor: 10 mm
WARNING
You could touch live wires if the power supply module PS 307 is switched on or the
supply cable of the power supply is connected to the mains supply.
Make sure the ET 200M is de-energized before doing any wiring.
connect to the PS 307 (see the following figure).
voltage on the PS 307.
The power supply module is factory-set to a mains voltage of 230 V AC. You can change
the setting in the following way: Remove the protective cover using a screwdriver, set the
switch to the available mains voltage and reattach the protective cover.
153-2. The terminating resistors in both connectors must be switched on.
Operating Instructions, 12/2008, EWA-4NEB780600602-08
2
ET 200M