Siemens Simatic PC Panel PC 870 Start-Up Instructions page 14

Unpacking and Installing the Panel PC 670/870
Select installation cut-out
Apples to the computer in a decentralized design:
No installation cut-out is required for the computer. Skip this working step.
Applies to both centralized and decentralized designs:
Select an appropriate installation area taking the installation notes and selected
installation angle into account.
Note
Ensure sufficient air volume for heat transportation within the switching
cabinet/panel. Further information on this is available in the Panel PC 670/870
Operating Unit Equipment Manual, Chapter 2.4.
Also ensure sufficient free space to pull out the Panel PC 670/870 from the
installation cut-out.
When selecting the installation cut-out, ensure that the switching cabinet/panel
contains reinforcement bars to stabilize the cut-out. If necessary, install such
reinforcement bars.
Figure 1–6 below contains:
the dimensioning of the holes required for the retaining screws and
the dimensioning of the pressure points of the screws regarding the clamping
saddles.
1–6
SIMATIC Panel PC 670/870 Start-Up Instructions
Release 11/02
Step 6