Safety
Instruction handbook BUM 60 / BUS 60
Document No.: 5.01032.05
19
2
2.12 Signs and labels
The following symbols and information signs are located in the working area. They refer to the
immediate vicinity in which they are affixed.
WARNING!
Risk of injury due to illegible symbols!
Over the course of time, stickers and symbols on the device can become dirty or oth-
erwise unrecognizable.
Therefore:
m
Maintain all safety, warning and operating labels on the device in easily readable
condition.
Electrical voltage
Only qualified personnel may work in work areas that identified with this.
Unauthorized persons may not touch working materials marked correspondingly.
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.
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.
