Siemens SIMOTICS-T 1FW68, Engineering Manual

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Motor components and options
4.1 Motor components
1FW68 radial segment motors
Configuration Manual, 04/2017, 6SN1197-0AE02-0BP1
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Using a high-resolution optical measuring system, generally, when compared to other
techniques, the best dynamic performance, highest control quality, high noise immunity,
precision and low noise can be achieved. Further, excitation of oscillation can be also
avoided.
Preconditions to achieve this include:
● The overall mechanical system, including motor and encoder mounting, permits this
● Extremely stiff dynamic machine design to avoid the excitation of low-frequency
mechanical oscillation
Figure 4-5 Performance-resolution diagram
Note
We cannot guarantee the composition, nature, state, or quality of non-Siemens products.
Read the detailed text in "Manufacturer recommendations" in the appendix.
Note
General mechanical conditions
Take into account the permissible mechanical speed, limit frequency of the encoder and
Control Unit. When configuring, mounting and adjusting the encoder refer to the appropriate
documentation issued by the manufacturer!
Mechanical integration of the encoder
The mechanical integration of an encoder is defined by several influencing factors, e.g.:
● The requirements specified by the encoder manufacturer (mounting specifications,
ambient conditions)
● The closed-loop motor control (commutation) requires an adequately precise connection
between the motor and encoder without any play