
19
3 Installation
3.3 Connections
3.3.7 Shielding the motor wiring
The encoder and signal lines are susceptible to interference, which makes it impossible to specify a
maximum cable length.
Shielded wires must always be used for cable lengths > 300 mm.
In general it is necessary to ensure that the cables between the Motion Controller and the motor are
kept as short as possible, since drive system properties such as smooth and concentric running dete-
riorate as the length of the cables increases.
MCBL motor wiring
Shielding
Shielding
Motor A
Phase A
Sensor C
Hall sensor C
Sensor A
Hall sensor A
Motor B
Phase B
U
CC
Sensor B
Hall sensor B
Motor C
Phase C
Brushless DC
servomotor
SGND
MCDC motor wiring
Shielding
Shielding
Mot +
Ch. A
Mot –
U
CC
Ch. B
DC motor
with encoder
SGND