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4 System Design
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
4-3 Wiring Conforming to EMC Directives
4
4-3-1 Wiring Method
Note L1 and L3 are the main circuit power supply input terminals. Connect the positive wire to L1 and the negative
wire to L3.
• Ground the motor's frame to the machine ground when the motor is on a movable shaft.
• Use a ground plate for the frame ground for each unit, as shown in the above diagrams, and ground to a
single point.
• Use ground lines with a minimum thickness of 3.5 mm
2
, and arrange the wiring so that the ground lines
are as short as possible.
• A no-fuse breaker, surge absorber, and noise filter should be positioned near the input terminal block
(ground plate), and I/O lines should be separated and wired at the shortest distance.
z Unit Details
*1 A specified combination of Servo Drive and Servomotor must be used.
R88D-KN75H-ECT/-KN150H-ECT (DC power input)
Symbol Name Manufacturer Model Comment
SG Surge absorber Okaya Electric
Industries Co., Ltd.
R
·A·V-781BXZ-4
3 phase - 200 VAC
NF Noise filter Okaya Electric
Industries Co., Ltd.
3SUP-HU30-ER-6 3 phase 200 VAC (30 A)
3SUP-HL50-ER-6B 3 phase 200 VAC (50 A)
SD Servo Drive OMRON − *1
SM Servomotor OMRON − *1
FC1 Clamp core TDK ZCAT3035-1330 −
FC2 Clamp core
Konno Kogyosho
RJ8035 −
FC3 Clamp core NEC TOKIN
Corporation
ESD-SR-250 −
FC4 Clamp core MICROMETALS T400-61D −
TB Switch box −− −
- Controller −− −
L1
L2
L3
L1C
L2C
3ø:200VAC
1ø:
100VAC
SG
*1
NF
AC/
DC
FC1 FC4
SD
FC3
FC1
CNA
CN1
CNB
CN2
U
V
W
SM
(3)
(4)
(1)
(6)
(5)
(7)
(8)
FC2
ECAT
IN
FC1
TB
+
−
Controller
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