Special hazards
Instruction handbook b maXX (BM4-F-)AIO-XX (Analog IO module)
Document No.: 5.01045.08 Baumüller Nürnberg GmbH
14
of 82
2.6
2.6 Special hazards
In the following section, the remaining marginal risks will be stated that have been iden-
tified as a result of the hazard analysis.
Observe the safety notes listed here and the warning notes in the further chapters of this
manual to reduce health risks and dangerous situations.
Electrical current
Danger from re-
sidual energy
DANGER!
Risk of fatal injury from electrical current!
There is an immediate risk of fatal injury if live electrical parts are contacted. Damage
to the insulation or individual components can be life-threatening.
Therefore:
m Switch off the electrical power immediately in case of damage to the power supply
insulation.
m Only allow work on the electrical system to be performed by qualified personnel.
m Switch off the current when any kind of work is being performed on the electrical
system and ensure safety before switching on again.
DANGER!
Risk of fatal injury from electrical current!
Stored electric charge.
Discharge time of the system = discharge time of the device with the longest DC link
discharge time connected to the DC link.
See Instruction handbook b maXX 4000 5.12008, chapter Electrical Data.
Therefore:
m Do not touch electrically live parts before taking into account the discharge time of
the capacitors.
m Pay attention to the corresponding notes on the device.
m If additional capacitors are connected to the DC link, the DC link discharge can
take a much longer time. In this case, the necessary waiting period must itself be
determined or a measurement made as to whether the equipment is de-energized.
This discharge time must be posted, together with an IEC 60417-5036 (2002-10)
warning symbol, on a clearly visible location of the control cabinet.
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