D1-N Series Servo Drive User Manual Motor Power Cable Shielding And Grounding
15-2 HIWIN MIKROSYSTEM Corp.
15.1 Motor power cable shielding
Noise could affect the servo drive via conduction and radiation while motor is operating. If unshielded
motor power cable is used, noise could be transmitted to the ground via stray capacitance and form
common-mode signal voltage. The common-mode noise on the motor power cable couples with other
signals by stray capacitance. To avoid interference, the motor power cable must be shielded.
(1) Put a 1.5 cm heat shrink outside of the cable. Cut the plastic sheath of the cable for 4.5 to 5.5 cm and
expose the shield and wires inside.
Figure15.1.1
(2) Put copper foil tape (10 cm) on the plastic sheath. Spread the shield and fold it back. Wind the shield
around the plastic sheath. Put copper foil tape (10 cm) on the plastic sheath and shield.
Figure15.1.2
(3) Cut the insulation (1 cm) and expose the copper core.
Figure15.1.3
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