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10.3 Notes on "safely-isolated low voltages
10-2
Safety Guidelines for electrical drives
High voltage!
DANGER to life or severe injury!
⇒ Comply with general setup and safety guidelines when
working on high voltage facilities.
DANGER
⇒ After installation, check the permanent connection of
the protective conductor at all electrical components
for compliance with the terminal diagram.
⇒ Operation, even for quick measuring and testing pur-
poses, is only permitted with permanently attached
protective conductors of all electrical components.
⇒ Prior to accessing electrical parts with voltages grea-
ter than 50 volts, remove them from the mains or the
voltage source. Secure against being switche back
on.
⇒ Wait the discharge time of five minutes after switching
off before accessing the motor.
⇒ Points of electrical connections of the components are
not to be touched when on.
⇒ Before switching the machine on, cover live parts ot
prevent contact.
⇒ Make sure that there is also sufficient against indirect
contact (as per DIN EN 50178/edition11.94, 5.3.2.3).
High leakage current!
DANGER to life or severe injury!
⇒ Prior to switching on, connect the electrical devices of
each drive controller, supply unit and the motor with
WARNING
the protective device to the grounding point.
⇒ The leakage current is greater than 3.5 mA. This
necessitates a permanent connection to the power
supply system (as per DIN EN 50178/edition 11.94,
5.3.2.3).
⇒ Before starting up, even for test purposes, always
connect the protective conductor. High voltages could
otherwise occur on the housing.
The connections and interfaces on the drive components intended for
signal voltages range from 5 to 30 volts. These electrical circuits are part
of the safely-isolated electrical circuits (safely-isolated low voltages).
DOK-MOTOR*-MKE*******-PRJ1-EN-E1,44 • 06.97
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