Specifications

CHAPTER 3 INSTALLATION
3.3 Noise Countermeasures
12
3.3.2 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, with clamp fittings or with the
connector GNP plate. Refer to the following drawings to treat the shield cable.
Lead wire treatment method
Soldering
Shield Cable
Cable
Lead wire
Unit
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.
Shield
Clamp fitting
Cable
Cable
Grounding plate
Unit
Shield
Less than 0.8m
Clamp
fitting
Grounding
plate
Example of connection with clamp fitting
(1) Peel 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.
Refer to APPENDIX 1 about the outline drawing of clamp fittings and grounding plate.
Example of connection with lead wire
Example of connection with connector GND plate
Lead wire treatment
method