● Only qualified persons are allowed to operate, maintain and/or repair the
components of the electric 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 power supply unit. Secure the electric component from reconnec‐
tion.
● 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
powered.
● Under specific conditions, electric drive systems can be operated at
mains protected by residual-current-operated circuit-breakers sensitive
to universal current (RCDs/RCMs).
● Secure built-in devices from penetrating foreign objects and water, as
well as from direct contact, by providing an external housing, for exam‐
ple a control cabinet.
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 electric drive and control system to the equipment
grounding conductor at the grounding points.
● Connect the equipment grounding conductor of the components of the
electric drive and control system permanently to the main power supply
at all times. The leakage current is greater than 3.5 mA.
2.4.2 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.
On components of an electric drive and control system provided by Bosch
Rexroth, all connections and terminals with voltages between 5 and 50 volts
are PELV ("Protective Extra-Low Voltage") systems. It is allowed to connect
devices equipped with basic insulation (such as programming devices, PCs,
notebooks, display units) to these connections.
DOK-RCON02-FV*********-IB08-EN-P Bosch Rexroth AG 29/259
Rexroth Frequency Converter Fv
Safety Instructions for Electric Drives and Controls
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