HB700 | CPU | PMC921xEx | en | 24-04 17
Direct/indirect contact
Safe isolation
Preventive measures
In case of emergency: act
correctly
Ensure protection against direct and indirect contact in accordance with VDE 0100 Part
410 (IEC 60364-4-41) for all components connected to the system. In the event of a fault,
parasitic voltages must not occur (single fault security). This also applies to devices and
components with dangerous touch voltages that are permanently connected to network
and/or diagnostic interfaces of the devices used.
Only use units with safe isolation if dangerous contact voltages can occur at their connec-
tions during normal operation or as a result of an insulation error
.
1.13 Safety facilities
WARNING
Risk of death by non-functioning safety facilities!
Safety facilities serve for maximum safety during operation. Even if by safety
facilities working process become complicated, its never allowed to circum-
vent them. The security is guaranteed only when the safety facilities are
intact.
Therefore: Before beginning the work check whether the safety facilities are installed
properly and functional.
1.14 Behavior with dangers and accidents
■ Always be prepared for accidents or fire!
■ First-aid equipment (first aid kit, blankets etc.) and keep fire extinguisher handy.
■ Make Personal with accident message, first-aid and rescue mechanisms familiar.
■ Set immediately the device with emergency stop out of operation.
■ Initiate first-aid measures.
■ Rescue persons from the danger zone.
■ Inform responsible on-site.
■ Alarm medical and / or fire department.
■ Make free the access routes for emergency vehicles.
1.15 Sign-posting
WARNING
Danger of injury by illegible symbols
In course of time stickers and symbols on the devices can get dirty or other-
wise become unrecognizable.
Therefore: Please hold all the safety warnings and operation instructions on the device in
always well readable condition.
1.15.1 Signs
The following symbols and signs are in the work space. They refer to the direct environ-
ment in which they are attached.
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