4-43
4-3 Wiring Conforming to EMC Directives
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4
System Design
the motor, such as devices using a switching power supply, noise filters, inverters, and so on.
To prevent malfunction due to inrush current, we recommend using a leakage breaker of 10 times
the total of all leakage current values.
The leakage breaker is activated at 50% of the rated current. Select a leakage breaker with
approx. twice the capacity.
For details on leakage breakers selection method, refer to the manufacturer's catalog.
Because switching takes place inside the Servo Drives, high-frequency current leaks from the SW
elements of the Servo Drive, the armature of the motor, and the cables.
High-frequency, surge-resistant leakage breakers, because they do not detect high-frequency
current, can prevent operation with high-frequency leakage current.
When using a general leakage breaker, use 3 times the total of the leakage current given in the
following table as a reference value.
Note: These values vary greatly depending on the installation conditions of the motor power cable and
the measurement conditions. Use them for reference only.
Servo Drive model Input power supply
Leakage current
(Cable: 3 m)
Increase per 10 m of
cable
R88D-KTA5L Single-phase 100 V 0.38 mA
0.1 mAR88D-KT01L Single-phase 100 V 0.39 mA
R88D-KT02L Single-phase 100 V 0.41 mA
R88D-KT04L Single-phase 100 V 0.46 mA 0.12 mA
R88D-KT01H
Single-phase 200 V 0.83 mA
0.23 mA
3-phase 200 V 1.03 mA
R88D-KT02H
Single-phase 200 V 0.84 mA
3-phase 200 V 1.02 mA
R88D-KT04H
Single-phase 200 V 0.96 mA
0.3 mA
3-phase 200 V 1.27 mA
R88D-KT08H
Single-phase 200 V 1.01 mA
1.1 mA
3-phase 200 V 1.39 mA
R88D-KT10H
Single-phase 200 V 0.88 mA
0.93 mA
3-phase 200 V 1.14 mA
R88D-KT15H
Single-phase 200 V 0.96 mA
3-phase 200 V 1.18 mA
R88D-KT20H 3-phase 200 V 1.53 mA
1.23 mAR88D-KT30H 3-phase 200 V 1.52 mA
R88D-KT50H 3-phase 200 V 1.39 mA
R88D-KT75H 3-phase 200 V 3.50 mA 2.07 mA
R88D-KT150H 3-phase 200 V 5.30 mA 1.13 mA
R88D-KT06F 3-phase 400 V 2.28 mA
1.8 mA
R88D-KT10F 3-phase 400 V 2.20 mA
R88D-KT15F 3-phase 400 V 2.55 mA 2.03 mA
R88D-KT20F 3-phase 400 V 2.92 mA 2.4 mA
R88D-KT30F 3-phase 400 V 3.92 mA 3.23 mA
R88D-KT50F 3-phase 400 V 3.54 mA 2.9 mA
R88D-KT75F 3-phase 400 V 6.70 mA 3.73 mA
R88D-KT150F 3-phase 400 V 10.40 mA 2.73 mA
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