Description Of The Motor - Siemens SIMOTICS T-1FW3 Configuration Manual

Description of the motor

Overview of the standard SIMOTICS T-1FW3 complete torque motors
The 1FW3 series was developed as direct drive. This direct drive is a compact drive unit
where the mechanical motor power is transferred directly to the driven machine without any
mechanical transmission elements. 1FW3 complete torque motors are water-cooled, high-
pole (slow running) permanent-magnet-excited synchronous motors. The operating
characteristics are comparable to those of regular synchronous motors.
The range includes 3 outer diameters with various shaft lengths. For shaft heights 150 and
200, the stator and rotor have a flange with centering edges and tapped holes at the DE that
allow them to be integrated into a machine.
The 1FW3 complete torque motor can be ordered with various shaft versions:
● Hollow shaft
● Plug-on shaft with integrated shaft centering
● Solid shaft
The various shaft versions allow highly flexible design and maintenance concepts to be
implemented. 1FW3 torque motors can be combined with the SINAMICS S120 drive system
to create a powerful, high-performance system. The integrated encoder systems for speed
and position control can be selected according to the application.
Table 2- 1
Versions
Photo-
graph
Ad-
vantages
1FW3 complete torque motors
Configuration Manual, 08/2020, A5E46027705B AA
Shaft versions
Hollow shaft
Completely hollow shaft,
•
e.g. for feeding cool-
ant/heat, measuring ca-
bles etc.
Motors with various
•
lengths can be mounted
on the machine shaft.
Plug-on shaft
Simple and quick instal-
•
lation as a result of the
integrated shaft adapter
with centering
Simpler clamping ele-
•
ment
Simple encoder re-
•
placement
2
Solid shaft
"Classic" motor installa-
•
tion
Simplest overall solution
•
Simple replacement of a
•
geared motor without
having to change the
connection to the ma-
chine
Simple encoder re-
•
placement
19