Siemens Simatic PC Panel PC 870 - Manual (Page 19)

Release 11/02 Unpacking and Installing the Panel PC 670/870
SIMATIC Panel PC 670/870 Start-Up Instructions 1–11
1.3 Installation of the Computer Unit
Skip this chapter if the centralized design has been chosen.
Only applies to the computer unit:
Permissible installation positions for the computer unit complying with
UL1950/EN60950/CSA22.2 No. 950
An angle of ± 20° is allowed in every permissible installation position.
Position 1 (preferable position) Position 2 *)
Position 3 (desktop) Position 4 (cover) **)
*) Not permitted where an LS240 drive is installed.
**) Not permitted where a disk/CD-ROM/LS240 drive is installed.
Figure 1–9 Permissible installation positions for the computer unit in a decentralized
design