4-23
4-3 Wiring Conforming to EMC Directives
4
System Design
Leakage Breakers
The leakage current for the Servomotor and Servo Drive combinations are given in the following
table.
Note 1.
The resistor plus capacitor measurement provides a guide to the leakage current level that
may flow through people if the Servomotor and Servo Drive are not properly grounded. The
actual value changes depending on the ambient temperature and humidity.
Note 2.
The clamp leak tester measurement is the leakage current actually detected at the inverter
and surge-resistant leakage breaker. Triple this value when using a general leakage
breaker.
Actual Selection
The leakage breaker starts to detect leakage current from 50% of the rated leakage current, so
provide a margin of two times.
Also, a large amount of leakage current will flow from the noise filter. Leakage current form other
Controllers should also be added to the total leakage current.
To prevent incorrect operation due to inrush current, it is necessary to select a current value of ten
times the total leakage current for uses other than surge resistance.
Refer to the specifications from the relevant manufacturer for information on leakage breakers.
R7D-BP Series
Re capaci-
tor measurement
Clamp leak tester (measurement filter
ON with HIOKI 3283)
5-m power cable
5-m power cable
20-m power cable
Servo Drive model
Specifications
Leakage current
(mA)
Leakage current
(mA)
Leakage current
(mA)
R7D-BPA5L
Single-phase 100 V, 50 W
0.48
0.08
0.13
R7D-BP01L
Single-phase 100 V,
100 W
0.59
0.09
0.13
R7D-BP02L
Single-phase 100 V,
200 W
0.50
0.10
0.15
R7D-BP01H
Single/three-phase 200 V,
50 W
0.91
0.25
0.37
Single/three-phase 200 V,
100 W
1.18
0.18
0.29
R7D-BP02HH
Single-phase 200 V,
200 W
0.95
0.30
0.40
R7D-BP02H
Three-phase 200 V,
200 W
1.17
0.26
0.37
R7D-BP04H
Single/three-phase 200 V,
400 W
1.25
0.55
0.72
