Mitsubishi Electric MELSERVO MR-J3-xT, Инструкция по эксплуатации

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14. OPTIONS AND AUXILIARY EQUIPMENT
Table 14.4 Servo motor’s leakage current example (Igm) Table 14.5 Servo amplifier's leakage current example (Iga)
Servo motor output [kW] Leakage current [mA]
Servo amplifier capacity
[kW]
Leakage current [mA]
0.05 to 1 0.1 0.1 to 0.6 0.1
2 0.2 0.75 to 3.5 0.15
3.5 0.3 5 7 2
5 0.5 11 15 5.5
7 0.7
22 7
11 1.0
Table 14.6 Leakage circuit breaker selection example
15 1.3
22 2.3
Servo amplifier
Rated sensitivity current of
leakage circuit breaker [mA]
MR-J3-10T to MR-J3-350T
MR-J3-10T1 to MR-J3-40T1
15
MR-J3-500T 30
MR-J3-700T 50
MR-J3-11KT to MR-J3-22KT 100
(2) Selection example
Indicated below is an example of selecting a leakage current breaker under the following conditions:
2mm
2
5m 2mm
2
5m
Ig1 Ig2
Servo
amplifier
Iga
M
HF-KP43
Igm
NV
MR-J3-40T
Use a leakage current breaker generally available.
Find the terms of Equation (14.2) from the diagram:
Ig1 20
1000
5
0.1 [mA]
Ig2 20
1000
5
0.1 [mA]
Ign 0 (not used)
Iga 0.1 [mA]
Igm 0.1 [mA]
Insert these values in Equation (14.2):
Ig 10 {0.1 0 0.1 1 (0.1 0.1)}
4.0 [mA]
According to the result of calculation, use a leakage current breaker having the rated sensitivity current (Ig)
of 4.0[mA] or more. A leakage current breaker having Ig of 15[mA] is used with the NV-SP/SW/CP/CW/HW
series.