12 EMC NICE3000
new
User Manual
- 308 -
The following gure shows installation of the common-mode lter.
Figure 12-11 Installation of the common-mode lter
PE
V
U
Cable length
< 300 mm
Magnetic ring
(wind three coils)
W
Table 12-12 Recommended common-mode lter model
Common-Mode Filter Model SN
Dimensions
(Outer Diameter x Inner Diameter x Thickness)
DY644020H 11013031 64 x 40 x 20 mm
DY805020H 11013032 80 x 50 x 20 mm
DY1207030H 11013033 120 x 70 x 30 mm
12.6 Circuit Breaker and Fuse Selection
The earth leakage current of the controller is larger than 3.5 A, requiring grounding protection.
The controller produces DC leakage current inside protective conductor, thus a B-type (delay-time) ELCB
must be used.
When the ELCB malfunction occurs, you can:
●
Use an ELCB of higher rated operating current or use a B-type ELCB.
●
Reduce the carrier frequency of the AC drive.
●
Shorten the length of drive cables of the motor.
●
Take more leakage current suppression measures.
The recommended leakage breaker manufacturers are CHINT and Schneider.
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