TAM00721
13
DSD-028 / DSD-036 / DSD2-028 / DSD2-036
04/2013
Three-phase-synchronous motor
English
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the output and input elements are secured.
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the complete cooling circuit is fully functional.
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the surface of the motor is free from pollution.
3.3
Electrical connections
Important notes:
All work must be carried out by specially trained personnel.
Work must only be carried out when the system is electrically isolated and secured against
unintentional restarting (also auxiliary circuits).
Work must only be carried out once the motor has come to a standstill!
In the case of three-phase synchronous motors with permanent magnet excitation, voltages
of > 60 V can occur at the motor contacts with the rotor running.
Regulations for working in electrical plants must be observed!
Attention! The safety regulations for work on electrotechnical systems in accordance with
EN 50110-1 must be followed:
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Isolate
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Secure against unintentional restarting
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Verify safe isolation from the supply
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Earth and short
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Safeguard or cover adjacent live parts
The electric motor must be operated via a correspondingly designed converter. A direct
connection to the three-phase mains can destroy the motor.
Ensure that the phase sequence and the pin assignment are correct!
Electrical connections, protective conductor connections, and screen connections (when
using screened cables) must be permanently secure!
Never touch the contacts of the encoder or thermal sensor with your hands or with tools
which are or may be electrostatically charged. The encoder and the thermal sensors are
electrostatically sensitive components.
Electrical installation:
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The person setting up the system is responsible for correct electrical installation.
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The motor data on the nameplate must be observed.
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Connection cables and connectors must be correctly rated for the voltages and currents and must be
suitable for the method of installation employed.
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The motor and the modules (brake, encoder etc.) must be connected in accordance with the details
on the wiring diagrams (see enclosed wiring diagrams and Section 7).
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Screened power and encoder cables must be used to protect against electromagnetic EMC
interference from motor cables and their effects on the encoder and control systems. Please refer to
the EMC notes provided by the supplier of the converter.
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In the interest of ensuring operational safety, we recommend that you use connecting cables
assembled by Baumüller (see Technical Product List).
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Before connection, the plugs and sockets must be checked for damage, corrosion, dirt and
dampness.
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Ensure the connections are made correctly and are tight. Seals and sealing faces on the connectors
maintain the type of protection.
Note! Also in the interests of safeguarding the degree of protection, the rotatable junction boxes
should not be turned in their direction of connection more than 5 times altogether.
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Connectors must not be exposed to mechanical stress. If necessary, protect against strain, shearing,
twisting and kinking.
