Safety Instructions For Control Panel Manufacturing - Siemens S120 Manual

Cabinet design and EMC for components, Blocksize format

10.2 Safety instructions for control panel manufacturing

10.2 Safety instructions for control panel manufacturing
Danger to life if the fundamental safety instructions and residual risks are not observed
The non-observance of the fundamental safety instructions and residual risks stated in
Chapter 1 can result in accidents with severe injuries or death.
• Observe the fundamental safety instructions.
• Consider the residual risks for the risk evaluation.
Danger to life caused by high discharge currents when the external protective conductor is
interrupted
Drive components conduct high discharge currents via the protective conductor. When the
protective conductor is interrupted, touching live components can result in electric shock,
which can lead to death or serious injuries.
• Ensure that the external protective conductor complies with at least one of the following
Danger to life as a result of electric shock for incorrectly routed brake cables
When routing brake cables without safe electrical separation, the insulation can fail
resulting in electric shock.
• Connect the holding brake using the MOTION-CONNECT cable intended for the
• Only use third-party cables that have brake cores with safe electrical separation or
Fire hazard due to overheating when permissible cable lengths are exceeded
Excessively long power cables can cause overheating of components with resulting fire and
smoke development.
• The cable lengths (e.g. motor cable, DC-link cable) listed in the technical data must not
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WARNING
WARNING
conditions:
– It is laid protected against mechanical damage.
– For an individual core, it has a cross-section of at least 10 mm² Cu.
– As core of a multi-core cable, it has a cross-section of at least 2.5 mm² Cu.
– It has a parallel, second protective conductor with the same cross-section.
– It corresponds to the local regulations for equipment with increased leakage current.
Cables routed in control cabinets or enclosed machine enclosures are considered to
1)
be adequately protected against mechanical damage.
WARNING
purpose.
separately route the brake cores with safe electrical separation.
WARNING
be exceeded.
1)
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
AC Drive