Omron R88D-KN series User Manual page 142

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