Other Precautions - YASKAWA Sigma-V Series User Manual

3 Installation

3.4.3 Other Precautions

3.4.3

Other Precautions

 Attachment Methods of Ferrite Cores
 Recommended Ferrite Core
Power supply main circuit cable
Servomotor main circuit cable
(SERVOPACK end)
Encoder cable
Motor fan cable
MECHATROLINK-II communica-
tions cable
 Fixing the Cable
Fix and ground the cable shield using a piece of conductive metal.
• Example of Cable Clamp
Host controller side
 Shield Box
A shielded box, which is a closed metallic enclosure, is effective as reinforced shield-
ing against electromagnetic interference (EMI) from the multi-winding drive unit,
SERVOPACKs, and converters. The structure of the box should allow the main body,
door, and cooling unit to be attached to the ground. The box opening should be as
small as possible.
Note: Do not connect a digital operator to the multi-winding drive unit while the multi-winding
3-18
One turn
Cable
Ferrite core
Cable Name
Ground plate
drive unit is operating. Connect them only when the machinery is stopped during mainte-
nance.
Two turns
Cable
Ferrite core
Ferrite Core Model
F11080GB
ESD-SR-250
Cable
Shield (cable sheath stripped)
Fix and ground the cable shield
using a piece of conductive metal.
Cable
clamp
Remove paint on mounting surface.
Manufacturer
Hitachi Metals, Ltd.
NEC TOKIN Corporation