Bosch Rexroth BTV 20.4A, Руководство по планированию

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WARNING
High electrical voltage! Danger to life, risk of injury by electric shock or
serious injury!
● Only qualified persons are allowed to operate, maintain and/or repair the
electric components of the drive and control system.
● Follow the general installation and safety regulations when working on
power installations.
● Before switching on, the equipment grounding conductor must have been
permanently connected to all electric components in accordance with the
connection diagram.
● Even for brief measurements or tests, operation is only allowed if the
equipment grounding conductor has been permanently connected to the
points of the components provided for this purpose.
● Before accessing electrical parts with voltage potentials higher than 50 V,
you must disconnect electric components from the mains or from the pow‐
er supply unit. Secure the electric component from reconnection.
● With electric components, observe the following aspects:
Always wait 30 minutes after switching off power to allow live capacitors
to discharge before accessing an electric component. Measure the elec‐
trical voltage of live parts before beginning to work to make sure that the
equipment is safe to touch.
● Install the covers and guards provided for this purpose before switching
on.
● Never touch electrical connection points of the components while power
is turned on.
● Do not remove or plug in connectors when the component has been pow‐
ered.
● As a basic principle, residual-current-operated circuit-breakers cannot be
used for electric drives to prevent direct contact.
● Secure built-in devices from penetrating foreign objects and water, as well
as from direct contact, by providing an external housing, for example a
control cabinet.
WARNING
High housing voltage and high leakage current! Danger to life, risk of
injury by electric shock!
● Before switching on and before commissioning, ground or connect the
components of the drive and control system to the equipment grounding
conductor at the grounding points.
● Connect the equipment grounding conductor of the components of the
drive and control system permanently to the main power supply at all
times. The leakage current is greater than 3.5 mA.
● Establish an equipment grounding connection with a copper wire of a
cross section of at least 10 mm 2 (8 AWG) or additionally run a second
equipment grounding conductor of the same cross section as the original
equipment grounding conductor.
3.3.2 Protective Extra-Low Voltage as Protection Against Electric Shock
Protective extra-low voltage is used to allow connecting devices with basic in‐
sulation to extra-low voltage circuits.
All connections and terminals with voltages between 5 and 50 volts at the com‐
ponents of the Bosch Rexroth drive and control system are PELV ("Protec‐
tive Extra-Low Voltage") systems. It is allowed to connect devices equipped
Project Planning Manual | Rexroth MTA 200 Electric Drives
and Controls
| Bosch Rexroth AG 17/135
Safety Instructions for Electric Drives and Controls