3rd edition, 6-11-2017
7000.05057, 3rd edition, 6-11-2017
7000.05057
Installation
21
Fig. 9:
Potential equalisation between electrically connected parts of the system
4.2.2
Connections at the motor side
The maximum length of the cable between the Motion Controller and motor depends on
the sensor system used and the electrical and magnetic fields in the environment.
Tab. 7:
Guide values for the cable length
Longer cables are generally permissible, but must be validated for the target installation.
Optimisation of the behaviour in respect of transient emission and interference resistance
may require additional EMC measures (see chap. 4.2.3, p. 22).
Motion
C
ontroller
Neutral point
Drive
Sensor type
Unscreened length
Screened length
a)
a)
applies to cables separately screened from the motor phase power cables.
Digital Hall sensors
0.5 m
2–5 m
Analogue Hall sensors
0.5 m
2–5 m
Incremental encoders without line driver
0.5 m
2–5 m
Incremental encoders with line driver
2 m
2–5 m
Absolute encoders without line driver
0.3 m
0.5 m
Absolute encoders with line driver
2 m
5 m