Special dangers
Operation Manual Safety I/O Terminals SI4000 / SO4000
Document no.: 5.08009.05 Baumüller Nürnberg GmbH
20
of 82
3.8
3.8 Special dangers
The residual risks arising as a result of the hazard analysis will be specified in the follow-
ing section.
Observe the safety instructions described here
and the warning notices in the following
chapters in order to reduce health hazards and avoid dangerous situations.
Electric current
DANGER!
Live-threatening danger from electric current!
Immediate life-threatening danger is present
if contact with live parts is made. Dam-
age to the insulation or individual comp
onent can be life-threatening.
Therefore:
m Shut down immediately if the insulation on the power supply is damaged.
m Only allow the work to be co
nducted on the electrical system by qualified person-
nel.
m Turn the current off when conducting any work on the electrical system and secure
it befo
re turning it back on.
Dangers from re-
sidual energy
DANGER!
Live-threatening danger from electric current!
After the device has been disconnected from
the mains, live parts such as line con-
nectors may only be touched once the cap
acitors in the device have been dis-
charged.
Therefore:
m Take the capacitors’ discharge time into account and do not touch live parts be-
forehand.
m Follow commensurate instructions on the device.
m If you have connected additional capacitors to the
intermediate circuit, it can also
take considerably longer for the intermediate circuit to discharge. In such case, you
will have to establish the necessary waiting period yourself or measure whether
the device has been de-energized.
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