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4 System Design
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
4-2 Wiring
4
4-
2-3 T
e
rminal Block Wire Sizes
The terminal block wire sizes used for 400-VAC input Servo Drive models are as shown below.
*1
Use the same wire size 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]
400-VAC Input Drive Wire Sizes
Model (R88D-)
KN06F-ECT-L
KN10F-ECT-L
KN15F-ECT-L
KN20F-ECT-L
KN30F-ECT-L
Item
Unit
Main circuit power
supply input
(L1 and L3, or L1,
L2 and L3)
Rated current
A
2.8
2.8
3.9
5.9
7.6
Wire size
–
AWG 14
AWG12
Screw size
–
–
–
–
–
M5
Tightening torque
N·m
–
–
–
–
2.0
Control circuit
power supply input
(L1C and L2C)
Wire size
–
AWG20 to 24
AWG 18
Screw size
–
–
–
–
–
M5
Tightening torque
N·m
–
–
–
–
2.0
Motor connection
terminals
(U, V, W, and FG)
*1
Rated current
A
2.9
2.9
4.7
6.7
9.4
Wire size
–
AWG 14
AWG12
Screw size
–
–
–
–
–
M5
Tightening torque
N·m
–
–
–
–
2.0
Maximum wiring length
m
20
Frame ground
(FG)
Wire size
–
AWG 14
AWG12
Screw size
–
M4
M5
Tightening torque
N·m
1.2
2.0
Maximum wiring length
m
1
AWG
size
Nominal
cross-sectional
area [mm
2
]
Configuration
[wires/mm
2
]
Conductive
resistance
[
Ω
/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
