Maintenance
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07
263
of 358
10
DANGER!
Risk of fatal injury from electrical current!
Therefore:
m Switch off voltage before performing work!
m Only qualified personnel may mount, install and maintain the devices.
m Please remove all metallic objects worn, such as watches or rings, for example,
before beginning to work on the device.
m Only insulated tools are permitted.
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 in the DC link connection.
Refer to ZElectrical data basic units– from page 63.
Therefore:
m Do not touch before taking into account the discharge time of the capacitors and
electrically live parts.
m Heed corresponding notes on the equipment.
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 be deter-
mined 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) warn-
ing symbol, on a clearly visible location of the control cabinet.
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