Siemens SIMOTION C 230-2 Operating Instructions Manual page 86

Configuring and installing
5.3 Installing
Mounting screws
Choose one of the following types of screw to mount the mounting rail:
Table 5-5
Outer mounting screws
Additional mounting screw (2-
meter mounting rail only)
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 installed
and for the heat to dissipate (a minimum of 40 mm above and below the mounting rail; see
Figure "Clearance distances").
2. Screw the mounting rail onto the surface where it is to be affixed (screw size: M6). Is this
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.
3. Connect the mounting rail with the protective conductor. An M6 protective conductor screw
is provided on the mounting rail for this purpose.
Minimum cross-section of protective conductor line: 10 mm
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.
86
Mounting screws
For
M6 cylinder-head screw per ISO
1207/ISO 1580 (DIN 84/DIN 85)
M6 hexagonal screw per ISO
4017 (DIN 4017)
M6 cylinder-head screw to ISO
1207/ISO 1580 (DIN 84/DIN 85)
you can use...
Select a screw length that is ap‐
propriate to your configuration
You also need 6.4 mm washers
per ISO 7092 (DIN 433)
Operating Instructions, 11/2022, A5E33441428B
Explanation
2 .
SIMOTION C