Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 236

11. OPTIONS AND AUXILIARY EQUIPMENT
(2) Selection example
Indicated below is an example of selecting an earth-leakage current breaker under the following conditions.
Use an earth-leakage current breaker generally available.
Find the terms of Equation (11.1) from the diagram.
5
Ig1
20
1000
5
Ig2
20
1000
Ign 0 (not used)
Iga 0.1 [mA]
Igm 0.1 [mA]
Insert these values in Equation (11.1).
Ig 10 {0.1 0 0.1 1 (0.1 0.1 0.1 0.1)}
6.0 [mA]
According to the result of calculation, use an earth-leakage current breaker having the rated sensitivity
current (Ig) of 6.0 [mA] or more. An earth-leakage current breaker having Ig of 15 [mA] is used with the NV-
SP/SW/CP/CW/HW series.
MCCB
0.1 [mA]
0.1 [mA]
2mm
2mm 5m
2
Servo amplifier
MR-J3W-44B
Ig1 Iga
11 - 51
5m
2
Cable
A-aixs servo motor
M
HF-KP43
Ig2 Igm
Cable
B-aixs servo motor
M
HF-KP43
Ig2 Igm