4 System Design
4-54
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
This section explains the criteria for selecting the connection components required to improve noise
resistance.
Understand each component's characteristics, such as its capacity, performance, and applicable range
when selecting the connection components.
For more details, contact the manufacturers directly.
z Noise Filters for Motor Output
• Use noise filters without built-in capacitors on the motor output lines.
• Select a noise filter with a rated current at least twice the Servo Drive's continuous output current.
• The following table shows the noise filters that are recommended for motor output lines.
Note 1 Motor output lines cannot use the same noise filters for power supplies.
2 General noise filters are made for power supply frequencies of 50/60 Hz. If these noise filters are
connected to output of the Servo Drive, a very large (about 100 times larger) leakage current may flow
through the noise filter's capacitor. This may damage the Servo Drive.
R88D-K20H- Three-phase 3G3AX-AL2055 20.0 A 0.88 mH Approx. 4.0 kg
R88D-K30H-
R88D-K50H- 3G3AX-AL2110 37.0 A 0.35 mH Approx. 5.0 kg
R88D-K75H- 3G3AX-AL2220 70.0 A 0.18 mH Approx. 10.0 kg
R88D-K150H-
R88D-K06F- 3G3AX-AL4025 6.0 A 7.7 mH Approx. 2.7 kg
R88D-K10F-
R88D-K15F-
R88D-K20F- 3G3AX-AL4055 10.0 A 3.5 mH Approx. 4.0 kg
R88D-K30F-
R88D-K50F- 3G3AX-AL4110 20.0 A 1.3 mH Approx. 6.0 kg
R88D-K75F- 3G3AX-AL4220 36.0 A 0.74 mH Approx. 10.0 kg
R88D-K150F-
Selecting Other Parts for Noise Resistance
Manufacturer Model
Rated
current
Comment
OMRON 3G3AX-NFO01 6 A For inverter output
3G3AX-NFO02 12 A
3G3AX-NFO03 25 A
3G3AX-NFO04 50 A
3G3AX-NFO05 75 A
3G3AX-NFO06 100 A
Servo Drive Reactor
Model
Number of
power
phases
Model
Rated
current
Inductance Weight
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