Siemens SIMOTION C Operating Instructions Manual page 86

Configuring and installing
4.3 Installing
Installing mounting rails
Install the mounting rails as follows:
1. Fit the mounting rail in a position that will allow enough room for the modules to be
2. Screw the mounting rail onto the surface where it is to be affixed (screw size: M6). Is this
3. Connect the mounting rail with the protective conductor. An M6 protective conductor
Note
Always make sure that there is a low-resistance connection to the protective conductor
(see figure below). If the rack is mounted on a movable frame, for example, make sure
that the line to the protective conductor is flexible.
PE connection
The figure below shows the proper way of connecting the protective conductor to the
mounting rail.
Figure 4-6
86
installed and for the heat to dissipate (a minimum of 40 mm above and below the
mounting rail; see Figure "Clearance distances").
substrate a grounded metal plate or a grounded equipment mounting plate?
If so: make sure that there is a low-resistance connection between the mounting rail and
the substrate. Use suitable electro-lubricant or contact washers with painted and
anodized metals, for example.
If not: no special action required.
screw is provided on the mounting rail for this purpose.
Minimum cross-section of protective conductor line: 10 mm
Protective conductor connection on the mounting rail
.
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SIMOTION C
Operating Instructions, 02/2012