Mitsubishi Electric Melservo-H Series, Specifications And Instruction Manual

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9. OPTIONS AND AUXILIARY EQUIPMENT
(2) Selection example
Indicated below is an example of selecting a leakage current breaker under the following conditions:
SM HA-LH
30mm 2 5m 22mm 2 5m
Ig1
Ig2 Iga Igm
NV
Servo
amplifier
Converter
unit
Use a leakage current breaker generally available.
Find the terms of Equation (9.1) from the diagram:
Ig1 95
1000
5
0.475[mA]
Ig2 105
1000
5
0.525[mA]
Ign 0(not used)
Iga 5[mA]
Igm 2.5[mA]
Insert these values in Equation (9.1):
Ig 10•{0.475 0 5 3•(0.525 2.5)}
145.5[mA]
According to the result of calculation, use a leakage current breaker having the rated sensitivity
current (Ig) of 145.5[mA] or more. A leakage current breaker having Ig of 200[mA] is used with the
NV-CA/CS/SS series.