Protection Against Contact With Electrical Parts - Bosch Rexroth IndraControl VCP 05 Project Planning Manual

3-4 Bosch Rexroth AG | Electric Drives and Controls
Safety Instructions for Electric Drives and Controls
3.5

Protection Against Contact with Electrical Parts

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
This section refers to equipment and drive components with voltages
above 50 Volts.
Touching live parts with voltages of 50 Volts and more with bare hands
or conductive tools or touching ungrounded housings can be danger-
ous and cause electric shock. In order to operate electrical equipment,
certain parts must unavoidably have dangerous voltages applied to
them.
DANGER
High electrical voltage! Danger to life, severe bodily harm by elec-
tric shock!
• Only those trained and qualified to work with or on electrical equip-
ment are permitted to operate, maintain or repair this equipment.
• Follow general construction and safety regulations when working on
high voltage installations.
• Before switching on power the ground wire must be permanently
connected to all electrical units according to the connection diagram.
• Do not operate electrical equipment at any time, even for brief mea-
surements or tests, if the ground wire is not permanently connected
to the points of the components provided for this purpose.
• Before working with electrical parts with voltage higher than 50 V, the
equipment must be disconnected from the mains voltage or power
supply. Make sure the equipment cannot be switched on again un-
intended.
• The following should be observed with electrical drive and filter com-
ponents:
Wait five (5) minutes after switching off power to allow capacitors to dis-
charge before beginning to work. Measure the voltage on the capacitors
before beginning to work to make sure that the equipment is safe to
touch.
• Never touch the electrical connection points of a component while
power is turned on.
• Install the covers and guards provided with the equipment properly
before switching the equipment on. Prevent contact with live parts at
any time.
• A residual-current-operated protective device (RCD) must not be
used on electric drives! Indirect contact must be prevented by other
means, for example, by an overcurrent protective device.
• Electrical components with exposed live parts and uncovered high
voltage terminals must be installed in a protective housing, for exam-
ple, in a control cabinet.
Rexroth IndraControl VCP 05 | R911299726 / 02