Danger-Related Notes; Protection Against Touch Of Electric Parts And Housings - Bosch Rexroth MAD Project Planning Manual

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Safety notes for electric drives and controls
3.3

Danger-related notes

3.3.1

Protection against touch of electric parts and housings

Bosch Rexroth AG R911295781_Edition 11
● Risk of burns by hot housing surfaces!
● Risk of injury by improper handling! Injury by crushing, shearing, cutting,
hitting!
● Risk of injury by improper handling of batteries!
● Risk of injury by improper handling of pressurized lines!
This section concerns components of electric drive and control
systems with a voltage over 50 volt.
In the case of touching parts with a voltage higher than 50 volt, this can be
dangerous for personnell and can lead to electric shock. During operation of
components of electric drive and control systems, certain parts of these com‐
ponents are inevitably under dangerous voltage.
High electrical voltage! Danger of life, risk of injury due to electric shock or
heavy bodily harm.
● Operation, maintenance and/or repair of components of electric drive
and control systems may only be done by qualified personnel.
● Observe the general construction and safety instructions about work on
high voltage systems.
● Before switching on, establish the fixed connection of the protective con‐
ductor to all electric components according to the interconnection dia‐
gram.
● Operation, even for short-term measuring and testing purposes, is only
permitted with the protective conductor securely connected to the com‐
ponent points provided.
● Disconnect electric components from the mains or from the power sup‐
ply, before you have contact with electric parts with a voltage higher
than 50 V. Secure the electric components against restarting.
● Observe for electrical components:
Please, always wait 30 minutes, after switch-off, so live capacitors dis‐
charge before they have access to electric components. To exclude any
danger due to any contact, measure electric voltage of live parts before
working.
● Before switch-on install the provided covers and protective devices for
the touch guard.
● Do not touch any electric junctions of live components.
● Do not disconnect or connect connectors under voltage.
High housing voltage and high discharge current! Danger! Risk of injury due
to electric shock!
● Before switch-on and start-up, ground or connect the components of the
drive and control system with the protective conductors on the ground‐
ing points.
MAD / MAF Asynchronous Housing Motors