3.1 Precautions on Wiring
19
Molded-Case Circuit Breaker (MCCB) or Fuse Capacity Relation to Power-Supply Capac-
ity
* 1. Valued obtained with the servomotor with the rated output.
* 2. Fuse manufactured by Littelfuse Inc.
Ground Fault
The ground protection circuit is designed for ground fault inside the motor windings while the
motor is running. Therefore, it may not protect the system under the following conditions.
• A low-resistance ground fault occurs between the main circuit cable and connector for the
servomotor.
• The power supply is turned ON during a ground fault.
To configure a safer system, install an earth leakage breaker for protection against overloads and
short-circuiting, or install an earth leakage breaker combined with a wiring circuit breaker for
ground protection.
MCCB or Fuse Capacity Relation to Power-Supply Capacity
Main
Circuit
Power
Supply
SERVOPACK
Applicable Ser-
vomotor Model
Power-
Supply
Capacity
kVA
MCCB
Current
Capacity
Arms
∗
1
External Fuse
Model No.
[Power-Supply
Capacity
Arms]
∗
2
Inrush
Current
A
Capac-
ity
kW
Model No.
Single-
phase
200 V
0.1 SJDE-01APA-OY
SJME-01APA-OY
0.4
4
0KLK
015.T
[15]
30
0.2 SJDE-02APA-OY
SJME-02APA-OY
0.75
0.4 SJDE-04APA-OY
SJME-04APA-OY
1.2
8
0.75 SJDE-08APA-OY
SJME-08APA-OY
2.2
16
0KLK
030.T
[30]
60
NOTE
TOEP_C710806_01A_0_0.book Seite 19 Montag, 2. Juli 2007 4:24 16