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3. INSTALLATION
3.4 Noise Countermeasures
I - 13
3.4.2 Shield Clamping of Cables
The shield cable connected to the control unit, servo amplifier and spindle amplifier must be connected to
the grounding plate to stabilize operation while preventing malfunctioning due to noise.
The shield can be connected to the grounding plate with lead wires, clamp fittings or the connector GND
plate. Refer to the following drawings to treat the shield cable.
(1) Peel off part of the cable sheath and expose
the shield as shown in the drawing. Press the exposed
part against the grounding plate with the cable clamp fittings.
(2) If the cable is thin, clamp several together in a bunch.
(3) Use adequate force when tightening the cable so that
the wire material is not damaged.
(4) Connect each grounding plate together and ground them at one point.
(5) Refer to APPENDIX 6 about the outline drawing of clamp fittings and grounding
plate.
Soldering
Shield
Cable
Cable
Unit
Example of connection with lead wire
Example of connection with connector GND plate
GND plate
Shield
Cable
Fold the cable shield over the sheath, and wrap copper foil tape around it. Connect the wound
copper foil tape to the connector’s GND plate.
Example of connection with clamp fitting
Shield
Cable
Clamp fitting
Grounding plate
Cable
Less than 0.8m
Shield
Clamp
fitting
Grounding
plate
Lead wire
Unit