Installing The Simatic Rack Pc - Siemens SIMATIC Rack PC 840 Manual

3.2

Installing the SIMATIC Rack PC 840

The Rack PC is particularly suitable for horizontal fitting in consoles, switch boards
and 19" rack systems.
The Rack PC with AC power supply meets the requirements for a fire enclosure
to EN60950. it can therefore be fitted without an additional fire enclosure.
The Rack PC with DC power supply does not fulfil the power supply connection
requirements for a fire enclosure to EN60950; therefore the mounting must meet
the requirements of fire protection enclosures in this area.
Please note the following points when installing the PC:
S Avoid extreme ambient conditions as far as possible. Protect your PC from
dust, moisture, and heat.
S Keep the PC out of direct sunlight.
S Mount the PC as safely as possible to prevent any danger (for example, by
falling over).
S The clearance near the ventilation slots must be at least 50 mm, so that the PC
is sufficiently ventilated.
S Make certain that the ventilation slots for the housing are not covered.
S The device is meets the protection class IP41 requirements on the front side.
Ensure that opening for the Rack PC is protected against water in an environ-
ment where there is a risk of splashing water.
S Make certain that the sliding door in front of the drives is closed during
operation.
S The Rack PC can be mounted on telescopic rails or on cabinet brackets. It is
not permitted to mount it at the 19" front supports only.
S Remove the glued on stands when fitting the Rack PC on telescopic rails. For
this use, restricted technical specifications for the drives in the front drive holder
apply. For more details refer to the Technical Specifications in Appendix B or to
the Retrofit Notes in Appendix C.
S Use the respective manufacturer's cabinet or rack slide rails or L-sections.
Contact your cabinet supplier directly regarding cabinet or rack installation.
S The use of the telescopic rails makes it possible to completely pull the Rack PC
out of the cabinet or rack.
Warning
!
If the systems are installed without keeping to the conditions mentioned above, the
approvals pursuant to UL 1950, UL 508 and EN60950 are no longer valid!
SIMATIC Rack PC 840 Manual
A5E00104826-03
Setting Up and Operating the SIMATIC Rack PC 840
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