TAM 00695
14
DST2-135
– 400 W
10 / 2019
Three-phase synchronous motor, water-cooled
English
3.4 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!
Attention!
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 permanently 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.
Electrical installation:
•
The supplier of the system is responsible for the correct electrical installation.
•
The motor data on the nameplate must be observed.
•
Connection cables and plug connections must be checked for any occurring voltages and
current intensity and must be suitable for the method of installation employed.
•
The motor and the modules (brake, encoder etc.) must be connected in accordance with the
details in the wiring diagrams (comp. enclosed wiring diagrams /
Appendix 1
).
•
Screened power and encoder cables must be used to protect against electromagnetic EMC
interference from motor cables and their effect on the encoder and control system. Please
refer to the EMC notes provided by the supplier of the converter.
•
To enhance operational safety, we recommend that the ready-made connection cables from
Baumüller be used.
•
Prior to connection, the female connectors, connectors and terminal box must be checked for
damage, corrosion, dirt and dampness.
•
Ensure the connections are made correctly and are tight. Seals and sealing faces on the
connectors
and
the
terminal
boxes
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.
•
Connectors and terminal box connections must not be exposed to mechanical stress. If
necessary, provide strain, shearing, twist and antikink relief.
