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Description
2.2 Features and system preconditions
2.2
Features and system preconditions
The built-in motor is a compact drive solution where the mechanical motor power is
transferred directly to the spindle without any mechanical transmission elements.
As the motor is mounted between the spindle bearings, the motor spindle has a high
degree of stiffness. For example, this means that C-axis operation for lathes can be
implemented using just one drive.
Standard 1FE1 built-in motors are water-cooled, permanent-magnet synchronous motors
that are supplied as components.
1
2
3
Figure 2-1
Depending on the motor type, the rotor is equipped with internal (IPM) or with external
(APM) permanent magnets.
Additional information is provided in Chapter "Design of the built-in motor (Page 30)".
A complete, functioning motor is only created once the rotor and stator have been
installed in the machine.
Features of the built-in motors
The 4-pole series is especially suitable for high speeds.
The 6 and 8-pulse series are especially suitable for applications demanding high torques
and C-axis operation.
22
Rotor with sleeve (example)
Stator with cooling jacket for water cooling (standard) (without cooling jacket, on request)
1FE1 built-in motor installed (shown without any elements on the customer side, e.g. shaft
and enclosure)
Example of a built-in motor installation
SIMOTICS M-1FE1 synchronous built-in motors
Configuration Manual, 09/2019, A5E47872980B AA
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