Technical Features And Ambient Conditions; Directives And Standards - Siemens SIMOTICS T-1FW6 Configuration Manual

Precision
The precision of a direct drive with torque motor is defined by the subsequent factors:
• Mechanical design, mechanical rigidity
• Precision und tolerance of the axis bearing arrangement
• Control technology applied
• Resolution and measuring accuracy of the encoder
Control quality
The control quality of a direct drive with torque motor is defined by the subsequent factors:
• 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.
Information on this topic is provided in the catalog. For more information, contact your
local Siemens contact person. The Internet link on this topic is provided in the introduction
under "Technical Support".
3.2

Technical features and ambient conditions

3.2.1

Directives and standards

The chapter lists the standards and directives that are applicable for the motor and which the
motor complies with.
1FW6 Built-in torque motors
Configuration Manual, 09/2022, A5E52220645B AA
Description of the motor
3.2 Technical features and ambient conditions
31