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Connecting a
To connect a PS 931 power supply module to the main power, proceed as
PS 931 or PS 935
follows (see Figure 3-12):
Power Supply Mo-
1. Set the voltage selector to the line voltage that you are using.
dule to the Main
Power
2. Lift the protective cover. (1)
3. Connect the power cable to terminals L1, N and
4. Close the protective cover. (5)
Figure 3-12 Connecting a Power Supply Module to the Mains
Connecting an ET
Connection of the ET 200U interface module to a power supply module is
200U Interface Mo-
different for the PS 931 and PS 935.
dule to a PS 931 or
PS 935 Power Sup-
ply Module
1. Connect the L+ and M terminals
2. For a grounded configuration, connect the
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
PS 931
of the PS 931 power supply mo-
dule to the correspond. terminals
on the ET 200U interf. module.
terface module to the standard mounting rail.
Mechanical and Electrical Configuration
(2), (3), (4) and
PS 935
1. Connect the L+ terminal of the
PS 935 power supply module to
the correspond. terminals on the
ET 200U interf. module.
terminal of the ET 200U in-
3-15
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