Inovance MD290T45G/55P User Manual

Appendix
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12
A.1.6 Breaker & Fuse Selection
Earth leakage current of AC drive is larger than 3.5 A, requiring grounding protection.
The AC drive produces DC leakage current inside protective conductor, thus a B-type (delay-
type) leakage breaker must be used.
When leakage breaker acts accidentally, you can:
Ɣ
Use a leakage breaker of higher rated action current or use a delay-type leakage breaker.
Ɣ
Lower the carrier frequency of AC drive.
Ɣ
Shorten the length of drive cables of motor.
Ɣ Take leakage current suppression measures.
Recommended leakage breaker manufacturers are CHINT and Schneider.
For selection of fuse and breaker, see
8
.
1
M
C
C
B
,
F
u
s
e
a
n
d
C
o
n
t
a
c
t
o
r
.
A.1.7 Shielded Cable
Ƶ
Requirements for Shielded Cable
Shielded cable must be used to satisfy EMC requirements of CE marking. Shielded
FDEOHVDUHFODVVL¿HGLQWRWKUHHFRQGXFWRUFDEOHDQGIRXUFRQGXFWRUFDEOH,IFRQGXFWLYLW\
RIFDEOHVKLHOGLVQRWVXI¿FLHQWDGGDQLQGHSHQGHQW3(FDEOHRUXVHDIRXUFRQGXFWRU
cable, of which one phase conductor is PE cable.
7KUHHFRQGXFWRUFDEOHDQGIRXUFRQGXFWRUFDEOHDUHVKRZQLQWKHIROORZLQJ¿JXUH
PE
PE conductor
and shield
Shield Shield
PE
PE
Shield
To suppress emission and conduction of radio frequency interference effectively,
shield of cable is cooper braid. Braided density of cooper braid should be greater than
WRHQKDQFHVKLHOGLQJHI¿FLHQF\DQGFRQGXFWLYLW\DVVKRZQLQWKHIROORZLQJ¿JXUH
Cable core
Internal insulator
Copper braidCopper shield
Insulation jacket

Inovance MD290T45G/55P Specifications

General

Brand	Inovance
Model	MD290T45G/55P
Category	DC Drives
Language	English