Siemens SINUMERIK 804D sl Equipment Manual

Guidelines
If the convection area A [m
2
] does not su󹪟ce for the "heat dissipation using natural convection",
then use:
• "Heat dissipation using natural convection and internal turbulence" for hot spots and heat
concentrations in housings subject to space constraints. The total power loss P
Ltot
for
thermally critical applications can be determined as follows:
– Current measurement for a 24 V supply voltage
– Power loss P
Ltot
[W] = U (24 V) * |measured value in ampères|
• Heat dissipation using open-circuit ventilation
4.1.3 Standards and approvals
Approvals
CE approval
Figure4-2 CE marking
The operator panels and the safety-relevant accessories satisfy the requirements and
protection objectives of the following EC directives. The operator panels and the safety-
relevant accessories comply with the harmonized European standards (EN), promulgated in
the O󹪟cial Journals of the European Community:
• 2014/30/EU "Electromagnetic Compatibility" (EMC Directive)
• Directive 2006/42/EC of the European Parliament and Council of May 17, 2006, on
machinery, and Directive 95/16/EC (amendment)
SIBE Switzerland Certi󹪝cation Service
For the HT2 and HT8 units.
Figure4-3 Symbol of the certifying body
HT 8
The HT 8 operator panel and the safety-relevant accessories (is identi󹪝ed in the "Accessories"
section for the respective devices) satisfy Category 3, PL d according to EN ISO 13849-1:2015.
General information and networking
4.1Application planning
Handheld Terminal HT 8
Equipment Manual, 02/2024, A5E52918633B AA 31

Siemens SINUMERIK 804D sl Specifications

General

Brand	Siemens
Model	SINUMERIK 804D sl
Category	Control Systems
Language	English