![background image](http://html1.mh-extra.com/html/omron/r88d-kn-series/r88d-kn-series_user-manual_742799155.webp)
4-41
4 System Design
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
4-3 Wi
ri
n
g
C
onf
o
rm
ing
to
EMC Directi
ves
4
4-3-2 Selecting
Connection
Component
Note
These values vary greatly depending on the installation conditions of the motor power cable and the
measurement conditions. Use the values for reference only.
•
Use surge absorbers to absorb lightning surge voltage and abnormal voltage from power supply input
lines.
•
When selecting surge absorbers, take into account the varistor voltage, the surge immunity and the
energy tolerated dose.
•
For 200-VAC systems, use surge absorbers with a varistor voltage of 620 V.
The surge absorbers shown in the following table are recommended.
Note 1
Refer to the manufacturers' catalog for operating details.
2
The surge immunity is for a standard impulse current of 8/20
s. If pulses are wide, either decrease the
current or change to a larger-capacity surge absorber.
R88D-KN06F-ECT-L
3-phase 400 V
2.28 mA
1.8 mA
R88D-KN10F-ECT-L
3-phase 400 V
2.20 mA
R88D-KN15F-ECT-L
3-phase 400 V
2.55 mA
2.03 mA
R88D-KN20F-ECT-L
3-phase 400 V
2.92 mA
2.4 mA
R88D-KN30F-ECT-L
3-phase 400 V
3.92 mA
3.23 mA
R88D-KN50F-ECT-L
3-phase 400 V
3.54 mA
2.9 mA
R88D-KN75F-ECT-L
3-phase 400 V
6.70 mA
3.73 mA
R88D-KN150F-ECT-L
3-phase 400 V
10.40 mA
2.73 mA
Surge Absorber
Manufacturer
Model
Surge immunity
Type
Comment
Okaya Electric
Industries Co., Ltd.
R·A·V-781BWZ-4
700 V
20%
2500 A
Block
Single-phase
100/200 VAC
Okaya Electric
Industries Co., Ltd.
R·A·V-781BXZ-4
700 V
20%
2500 A
3-phase 200 VAC
Okaya Electric
Industries Co., Ltd.
R·A·V-801BXZ-4
800V
20%
2500 A
3-phase 400 VAC
Servo Drive model
Input power supply
Leakage current
(Cable: 3 m)
Increase per 10 m
of cable