Wiring The Cm35 - Siemens SIMATIC CM35 Manual

Commissioning
3.2

Wiring the CM35

Digital inputs
Digital outputs
Shield clamps
!
3-8
The 8 counting inputs (channels) of the CM35 are available on a 25- - pin sub
D socket on the front of the module.
Each counting input has separate connections for reference potential
(ground), and 5 V and 24 V signals. To prevent malfunctions, only one of the
two signal voltages may be wired at a time.
The encoder must be powered by an external voltage source.
The 8 outputs of the CM35 are available on a 15- - pin sub D socket on the
front of the module. A load power supply of 24 V DC must also be connected
there which is able to continuously supply the sum of the required output
currents.
The outputs are P switches which can handle a load current of 0.4 A. They
are protected against overload and short circuits.
The size of the shield clamp depends on the diameter of the cable.
To mount a cable with the shield clamp, bare the shield by cutting out
approximately 1.5 cm of the cable insulation at the appropriate location on
the cable.
2
1
Figure 3-1 Mounting the shield clamps
Caution
Do not damage the braiding of the shield when baring the cable.
When applying the shield to all cables connected to the CM35, remember to
leave enough cable between the shield connecting element and the CM35 so
that the CM35 can be removed with all cables connected.
Shield clamp
Shield rail
(fixed)
CM35 Counter Module
(4) J31069-D0416-U001-A5-7618