TAM 00624 12
DS 100 – 200 03 / 2005
Three-phase synchronous motor, air-cooled English
(Prior to and during mounting, check that..)
• the brake (optional) can be released after feeding the operating voltage (audible creaking
sound).
• the rotor rotates smoothly without making a scraping sound.
If the motor is equipped with a brake, the brake should be released previously.
• the design of the motor and encoder cables complies with the details in the technical
documentation.
• the output and input elements are secured.
• the cooling system is functional and protected against any foreign matter that might fall into it
• there is sufficient free space for filter replacement.
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 has been de-energized and
secured against unintentional restarting (also auxiliary circuits).
Work may only be carried out once the machine has come to a standstill.
In the case of three-phase synchronous motors with permanent-magnet
excitation, a voltage of > 60 V can occur at the motor terminals when the rotor
is turning.
Regulations for working in electrical plants must be adhered to!
The safety regulations for work in electrotechnical plants in accordance with EN 50110-1
(DIN VDE 0105-100) must be observed:
- Disconnect the system
- Secure against unintentional restarting
- Verify safe isolation from supply
- Earth and short
- 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 screening
connections (when using screened cables) must be permanerntly secure!
Never touch the contacts of the encoder or thermal sensor with your hands or
with tools that are electrostatically charged. The encoder and the thermal
sensor are electrostatically sensitive components.
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