Yaskawa SigmaLogic - Manual (Page 45)

11 EMC Installation Conditions
43
Attachment Methods of Ferrite Cores
Recommended Ferrite Core
Recommended Noise Filter and Surge Absorber
For more information on recommended noise filters and surge absorbers, refer
to Sigma-5 Product Catalog. (YEA-KAEPS800000 42)
Fixing the Cable
Fix and ground the cable shield using a piece of conductive metal.
 Example of Cable Clamp
Shield Box
A shield box, which is a closed metallic enclosure, is effective as reinforced
shielding against electromagnetic interference (EMI) from SERVOPACKs. 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 the digital operator and the analog monitor cable to the
SERVOPACK during operations. Connect them only when the machinery is
stopped during maintenance.
One turn Two turn
Cable Name Ferrite Core Model Manufacturer
Motor main circuit cable ESD-SR-250 NEC TOKIN Corp.
Cable
Ferrite core
Cable
Ferrite core
Host controller side
Ground plate
Cable
Cable
clamp
Shield (cable sheath stripped)
Fix and ground the cable shield
using a piece of conductive metal.
Remove paint on mounting surface.