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Siemens simatic s7-400 FM 450-1 - Page 37

Siemens simatic s7-400 FM 450-1
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Wiring
4.4 Module status after power is switched on
Counter module FM 450-1
Manual, 02/2014, A5E03648739-02
37
Figure 4-3 Incremental 24 V encoder connection
Use flexible cables with cross sections of 0.25 to 1.5 mm
2
.
Note
If the
encoder is supplied via the module, the cable cross section must be selected large
enough for sufficient voltage to be applied to the encoder via the cable in spite of a drop
in voltage. This applies in particular in the case of incremental 5 V encoders.
A wire end ferrule is not required. If you use wire end ferrules, they must be of the type
without insulating collars in compliance with DIN 46228 Form A, short type!

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