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6. OPTION AND AUXILIARY EQUIPMENT
(2) Selection example
Indicated below is an example of selecting a leakage current breaker under the following conditions:
2mm
2
NV
Ig1
Use a leakage current breaker generally available.
Find the terms of Equation (6-2) from the diagram:
5
0.1[mA]
Ig1
20
1000
5
Ig2
20
0.1[mA]
1000
Ign=0 (not used)
Iga=0.1[mA]
Igm=0.1[mA]
Insert these values in Equation (6-2):
Ig 10 {0.1+0+0.1+3 (0.1+0.1)}
8.0[mA]
According to the result of calculation, use a leakage current breaker having the rated sensitivity
current (Ig) of 8.0[mA] or more. A leakage current breaker having Ig of 15[mA] is used with the NV-
CA/CS/SS series.
6 - 2 - 8 Battery (MR-BAT, A6BAT)
Use the battery to build an absolute position detection system.
5m
2mm
2
Servo
amplifier
MR-J2-60B
Iga
Ig2
5m
SM
HA-FF63
Igm
6 - 22
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