Highlights And Benefits; Overview - Siemens SIMOTICS T-1FW6 Series Configuration Manual

Description of the motor

2.1 Highlights and benefits

2.1 Highlights and benefits
2.1.1

Overview

SIMOTICS T-1FW6 High Speed built-in torque motors are designed as built-in motors for
use in higher-speed direct drives.
These built-in torque motors are liquid-cooled, permanent-magnet-excited, high-pole-number
three-phase synchronous motors with hollow-shaft rotors. The motors are delivered as
components that are subsequently built-in. For a complete drive unit, bearings and rotary
encoder are required.
The product range includes 5 frame sizes (or external diameters), each with 3 or 4 different
axis lengths. The motors are available for two different speed ranges. The stators and rotors
are equipped with flanges with centering surfaces and tapped holes, which allow them to be
integrated into a machine.
The motors are designed for the SINAMICS S120 drive system.
You can use Motor Modules in the "blocksize", "booksize" or "chassis" formats.
Accuracy
The accuracy of a direct drive with torque motor is governed by the:
● Mechanical design, mechanical rigidity and bearings of the machine
● Control technology used
● Resolution and measuring accuracy of the encoder
Control quality
The control quality of a direct drive with torque motor is governed by the:
● Rigidity of the drive system (dynamic quality of the machine construction, bearing,
encoder mounting)
● The precision when mounting and adjusting the encoder system
● Quantification of the angular signal and speed signal (the number of encoder lines and
their multiplication in the encoder evaluation of the converter for each axes rotation and
the measuring accuracy of the encoder are crucial here).
● Sampling time of the current, speed, and position controller.
In addition to selecting a suitable motor, encoder and controller, the precision and control
quality of the machine axis is essentially determined by the integration into the overall
mechanical system. As a consequence, a general recommendation for integrating the motor
cannot be given for all axis concepts.
To ensure that the motor and the encoder are optimally integrated into the mechanical
structure, Siemens offers its Application & Mechatronic Support Direct Motors service, see
Catalog. For additional information, please contact your Siemens contact person, also refer
to the Internet link in the Introduction under "Technical Support".
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1FW6 High Speed built-in torque motors
Configuration Manual, 01/2020, 6SN1197-0AE03-0BP3