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11. OPT I ONS AND PER IPH ERA L EQU IPM ENT 11 - 9 4 (2) Sele ction exam ple Indicated below is an ex ample of selec ting an e arth-le akage curr ent break er und er the fol lowing conditio ns. Servo motor HG-KR43 2 mm 2…

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11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 93
Table
11.4 Servo motor leakage current example (lgm)
Servo motor power [kW] Leakage current [mA]
0.05 to 1 0.1
1.2 to 2 0.2
3 to 3.5 0.3
4.2 to 5 0.5
6 to 7 0.7
8 to 11 1.0
12 to 15 1.3
20 to 25 2.3
Table
11.5 Servo amplifier leakage current example (Iga)
Servo amplifier capacity [kW] Leakage current [mA]
0.1 to 0.6 0.1
0.75 to 3.5 0.15
5/7 2
11/15 5.5
22 7
Table
11.6 Earth-leakage current breaker selection example
Servo amplifier
Rated sensitivity current of earth-leakage
current breaker [mA]
MR-J4-10B(-RJ) to MR-J4-350B(-RJ)
MR-J4-60B4(-RJ) to MR-J4-350B4(-RJ)
MR-J4-10B1(-RJ) to MR-J4-40B1(-RJ)
15
MR-J4-500B(-RJ)
MR-J4-500B4(-RJ)
30
MR-J4-700B(-RJ)
MR-J4-700B4(-RJ)
50
MR-J4-11KB(-RJ) to MR-J4-22KB(-RJ)
MR-J4-11KB4(-RJ) to MR-J4-22KB4(-RJ)
100
11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 94
(2)
Selection example
Indicated below is an example of selecting an earth-leakage current breaker under the following
conditions.
Servo motor
HG-KR43
2 mm
2
× 5 m2 mm
2
× 5 m
M
NV
Ig1 Iga Ig2 Igm
Servo amplifier
MR-J4-40B
Use an ear
th-leakage current breaker designed for suppressing harmonics/surges.
Find the terms of equation (11.1) from the diagram.
Ig1 = 20 •
5
1000
= 0.1 [mA]
Ig2 = 20 •
5
1000
= 0.1 [mA]
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)}
≥ 4 [mA]
According to the result of calculation, use an earth-leakage current breaker having the rated sensitivity
current (Ig) of 4.0 mA or more.
An earth-leakage current breaker having Ig of 15 mA is used with the NV-SP/SW/CP/CW/HW series.
11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 95
11.16 EMC f
ilter (recommended)
POINT
For when multiple servo amplifiers are connected to one EMC filter, refer to
section 6.4 of "EMC Installation Guidelines".
It is rec
ommended that one of the following filters be used to comply with EN EMC directive. Some EMC
filters have large in leakage current.
(1) Combination with the servo amplifier
Servo amplifier
Recommended filter (Soshin Electric)
Mass [kg]
Model Rated current [A]
Rated voltage
[VAC]
Leakage current
[mA]
MR-J4-10B(-RJ) to
MR-J4-100B(-RJ)
HF3010A-UN
(Note)
10
250
5
3.5
MR-J4-200B(-RJ)
MR-J4-350B(-RJ)
HF3010A-UN
(Note)
30 5.5
MR-J4-500B(-RJ)
MR-J4-700B(-RJ)
HF3040A-UN
(Note)
40
6.5
6
MR-J4-11KB(-RJ)
MR-J4-15KB(-RJ)
MR-J4-22KB(-RJ)
HF3100A-UN
(Note)
100 12
MR-J4-60B4(-RJ)
MR-J4-100B4(-RJ)
TF3005C-TX 5
6
MR-J4-200B4(-RJ) to
MR-J4-700B4(-RJ)
TF3020C-TX 20
500 5.5
MR-J4-11KB4(-RJ) TF3030C-TX 30 7.5
MR-J4-15KB4(-RJ) TF3040C-TX 40
12.5
MR-J4-22KB4(-RJ) TF3060C-TX 60
MR-J4-10B1(-RJ) to
MR-J4-40B1(-RJ)
HF3010A-UN
(Note)
10 250 5 3.5
Note. To use an
y
of these EMC filters, the sur
g
e protector RSPD-500-U4
(
Oka
y
a Electric Industries
)
is required.
Servo amplifier
Rec
ommended filter (COSEL)
Mass [kg]
Model Rated current [A]
Rated voltage
[VAC]
Leakage current
[mA]
MR-J4-11KB(-RJ) to
MR-J4-22KB(-RJ)
FTB-100-355-L
(Note)
100 500 40 5.3
MR-J4-22KB4(-RJ)
FTB-80-355-L
(Note)
80 500 80 5.3
Note. To use an
y
of these EMC filters, the sur
g
e protector RSPD-500-U4
(
Oka
y
a Electric Industries
)
is required.