Siemens Simatic S7-1500R System Manual page 101

Installation
4.2 Installing the mounting rail
Preparing the 2000 mm mounting rail for installation
Proceed as follows to prepare the 2000 mm mounting rail for installation:
1. Cut the 2000 mm mounting rail to the required length.
2. Mark the holes. The necessary dimensions can be found in the table "Dimensions for the
drill holes":
– Two drill holes at the beginning and end of the mounting rail
– Additional drill holes at equal intervals of 500 mm maximum, along the identification
3. Drill the marked holes according to the selected type of fastening.
4. Ensure that there are no burrs or shavings on the mounting rail.
Note
To ensure secure installation of the modules, make sure that the drill holes are centered in
the identification groove. Only use the maximum size of screws.
①
②
Figure 4-2
Installing the mounting rail
Install the mounting rails for the R/H-CPUs so that there is still sufficient space for installation
and heat dissipation. Please study the figure Minimum clearances in the control cabinet
(Page 97).
Screw the rail onto the mounting surface.
100
groove
Identification groove for additional drill holes
Additional drill hole
Preparing the 2000 mm mounting rail for installation
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA