Omron R88D-KN series User Manual

4 System Design
4-28
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
*1 Use the same wire sizes for B1 and B2.
Additional Information
Wire Sizes and Allowable Current
The following table shows the allowable current when there are 3 power supply wires. Use a
current below these specified values.
600-V Heat-resistant Vinyl Wire (HIV)
Model (R88D-)
KN30F-ECT-L KN50F-ECT-L KN75F-ECT-L KN150F-ECT-L
Item Unit
Main circuit
power supply
input (L1 and
L3, or L1, L2
and L3)
Rated current A 7.6 12.1 16.0 29.0
Wire size  AWG12
AWG10 AWG6
Screw size  M5 M6
Tightening
torque
N·m 2.0
2.0 to 2.4 2.2 to 2.5
Control circuit
power supply
input (L1C and
L2C)
Wire size  AWG18
Screw size  M5 M4
Tightening torque N·m 2.0 1.3 to 1.5 0.7 to 0.8
Motor
connection
terminals
(U, V, W, and
FG)
*1
Rated current A 9.4 16.5 22.0 33.4
Wire size  AWG12 AWG6 AWG4
Screw size  M5 M6
Tightening torque N·m 2.0 2.0 to 2.4 2.2 to 2.5
Maximum wiring
length
m20
Frame ground
(FG)
Wire size  AWG12 AWG6 AWG4
Screw size  M5 M6
Tightening torque N·m 2.0 1.4 to 1.6 2.4 to 2.8
Maximum wiring
length
m1
Dynamic brake
resister control
terminals
Wire size  AWG18
Screw size  M5 M6
Tightening torque N·m 1.3 to 1.5 0.7 to 0.8
AWG
size
Nominal cross-
sectional area
[mm
2
]
Configuration
[wires/mm
2
]
Conductive
resistance
[/km]
Allowable current [A] for ambient
temperature
30C 40C 50C
20 0.5 19/0.18 39.5 6.6 5.6 4.5
 0.75 30/0.18 26.0 8.8 7.0 5.5
18 0.9 37/0.18 24.4 9.0 7.7 6.0
16 1.25 50/0.18 15.6 12.0 11.0 8.5
14 2.0 7/0.6 9.53 23 20 16
12 3.5 7/0.8 5.41 33 29 24
10 5.5 7/1.0 3.47 43 38 31
8 8.0 7/1.2 2.41 55 49 40
6 14.0 7/1.6 1.35 79 70 57
4 22.0 7/2.0 0.85 99 88 70

Omron R88D-KN series Specifications

General

Brand	Omron
Model	R88D-KN series
Category	Controller
Language	English