4.9 1FW6 build–in torque motors (from SW 6.1)
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Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
4.9 1FW6 build–in torque motors (from SW 6.1)
4.9.1 Description
Build–in torque motors are liquid–cooled, slow–speed (high pole num-
ber), permanent–magnet three–phase synchronous motors with hol-
low–shaft rotors. The motors are supplied as build–in components
which are kept together, when shipped, using an assembly unit. In ad-
dition, a bearing and a rotary encoder are required for a complete drive
unit.
The stator and the rotor have flanges at both ends with centering sur-
faces and tapped holes which allow them to be integrated into a ma-
chine.
The motors distinguish themselves as follows:
Extremely high power density
High torque with a compact design and low envelope dimensions
Wide range of types
High overload capability (factor 1.8 ... 2.0)
Low moment of inertia
High degree of availability as there are no gearbox components in
the mechanical drive transmission line which are subject to wear
Cable and cooling connections, either radial or axial
Water cooling to increase the rated power
Directly flanged to the machine
Reader’s note
Detailed information on 1FW6 motors and to engineer and mount
build–in torque motors is provided in:
Reference: /PJTM/ Configuration Manual
1FW6 Build–in Torque Motors
Manufacturers documentation
What is a
permanent–
magnet
synchronous
motor
with field
weakening?
Advantages
02.03
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