Technical data

3.4 Protection Against Contact with Electric Parts
This section only concerns devices and drive components with vol-
tages of more than 50 Volt.
Contact with parts conducting voltages above 50 volts can cause personal
danger and electric shock. When operating electrical equipment, it is unavoid-
able that some parts of the units conduct dangerous voltage.
DANGER
High electrical voltage! Danger to life, electric shock and severe bodily
injury!
⇒ Only those trained and qualified to work with or on electrical equipment are
permitted to operate, maintain and repair this equipment.
⇒ Follow general construction and safety regulations when working on electrical
power installations.
⇒ Before switching on the device, the equipment grounding conductor must
have been permanently connected to all electrical equipment in accordance
with the connection diagram.
⇒ Do not operate electrical equipment at any time, even for brief measurements
or tests, if the equipment grounding conductor is not permanently connected to
the mounting points of the components provided for this purpose.
⇒ Before working with electrical parts with voltage potentials higher than 50 V,
the device must be disconnected from the mains voltage or power supply unit.
Provide a safeguard to prevent reconnection.
For electrical drive and filter components, observe the following:
Wait 30 minutes after switching off power to allow capacitors to discharge be-
fore 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 device on. Before switching the equipment on, cover and safe-
guard live parts safely to prevent contact with those parts.
⇒ A residual-current-operated circuit-breaker or r.c.d. cannot be used for elec-
tric drives! Indirect contact must be prevented by other means, for example, by
an overcurrent protective device according to the relevant standards.
⇒ Secure built-in devices from direct touching of electrical parts by providing
an external housing, for example a control cabinet.
European countries: according to EN 50178/1998, section 5.3.2.3.
USA: See National Electric Code (NEC), National Electrical Manufacturers As-
sociation (NEMA) as well as local building regulations. The user must always
keep all named articles.
For electrical drive and filter components, observe the following:
Project Planning Manual | Rexroth IndraDyn S Electric Drives
and Controls
| Bosch Rexroth AG 9/194
Safety Instructions for Electric Drives and Controls