Bearing Version; Shaft Extension (Iec 60072-1); Encoder; Holding Brake - Siemens SINAMICS S210 Operating Instructions Manual
Servo drive system
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Also See for SINAMICS S210:
- Operating instructions manual (574 pages) ,
- Operating instructions manual (6 pages)
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Description
2.3 Motor
When mounting the motor, carefully observe the specifications in Chapter:
Bearing version
The motors have deep groove ball bearings with life-long lubrication.
The average bearing service life is designed for 25000 operating hours.
The motors have spring-loaded bearings in the NDE direction. For version with holding brake,
the NDE bearing is a locating bearing.
The permissible axial and radial forces can be found in the technical data in Chapter:
Shaft extension (IEC 60072-1)
● Cylindrical shaft without feather key
● Cylindrical shaft with feather key (half-key balancing)
● Optional for SH30 (1FK2❒03): Cylindrical shaft without feather key, diameter x length:
11 mm x 23 mm
For additional information, see Chapter:
Encoder
The motor encoder resolution is 20 bit (1,048,576) per revolution (singleturn). An optional
multiturn encoder is available that is equipped with an additional 12-bit revolution counter
(traversing range of 4096 revolutions).
The names of these two encoders are as follows:
● AS20DQC: Absolute encoder, singleturn, 20 bit
● AM20DQC: Absolute encoder, 20 bit + 12 bit multiturn
For additional information, see Chapter:
Holding brake
The 1FK2 servomotor is available with integrated holding brake. The holding brake is used to
clamp the motor shaft when the motor is at a standstill.
The holding brake closes in the current-free state and locks the motor shaft. It opens as soon
as current is flowing.
SINAMICS S210 controls the holding brake without any additional devices.
The torsional backlash of the holding brake is less than 1°.
The holding brake is not a working brake for braking the rotating motor. However, limited
emergency stop operation is permissible.
26
"Cooling (Page 178)"
"Permissible radial and axial forces (Page 185)"
"Shaft extension (Page 183)"
"Available encoders (Page 185)"
SINAMICS S210 servo drive system
Operating Instructions, 12/2017, A5E41702836B AA
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