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1st edition, 03-05-2018
7000.05063, 1st edition, 03-05-2018
7000.05063
Installation
29
If several electrical devices or controllers are networked by means of RS232 or CAN,
make sure that the potential difference between the earth potentials of the various
parts of the system is less than 2 V.
The cross-section of the required potential equalisation conductors between the various
parts of the system is specified in VDE 100 and must satisfy the following conditions:
At least 6 mm
2
Larger than half the cross-section of the supply conductor
Fig. 14: Potential equalisation between electrically connected parts of the system
4.2.2
Drive connections
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. 9:
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. 30)
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
Содержание MC 5004 P STO
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