Ambient And Environmental Conditions; Installation - Siemens SIMATIC Rack PC 840 V2 Operating Instructions Manual

4.3

Ambient and environmental conditions

4.3
When you plan your project, you should make allowances for:
• Note the climatic and mechanical environmental conditions specified in the specifications
• Avoid extreme ambient conditions as far as possible. Protect your PC from dust,
• Keep the PC out of direct sunlight.
• Mount the PC as safely as possible to prevent danger (for example, of falling over).
• The device satisfies protection class IP 41 on the front panel. In areas where splashing is
• The area around the ventilation slots must be at least 50 mm, in order that the PC is
• Do not cover the device's vent slots.
• The device fulfils the requirements for a fire enclosure according to EN 60950-1. It can be
SIMATIC Rack PC 840 V2
Operating Instructions, Edition 05/2006, A5E00248055-04
provided by your operating manual.
moisture, and heat.
likely, ensure that the device's installation opening is splash-proofed.
sufficiently ventilated.
installed without additional fire protection.
Warning
If these requirements are not adhered to when installing the system, the approvals
according to UL 60950-1, EN 60950-1 are voided and there will is a danger of
overheating and a hazard for personnel!
Application Planning
4.3 Ambient and environmental conditions
4-3