5.3 SERVOPACK Main Circuit Wire Size
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5
Specifications and Dimensional Drawings of Cables and Peripheral Devices
5.3 SERVOPACK Main Circuit Wire Size
1. Wire sizes were selected for three cables per bundle at 40
°
C surrounding air temperature with the rated
current.
2. Use cable with a minimum withstand voltage of 600 V for main circuits.
3. If cables are bundled in PVC or metal ducts, consider the reduction ratio of the allowable current.
4. Use heat-resistant cables under high surrounding air or panel temperatures where normal vinyl cables will
rapidly deteriorate.
5. Use cables within the allowable moment of inertia.
6. Do not use cables under continuous regenerative state.
5.3.1 Cable Types
The following table shows the wire size and allowable current for three cables. Use a cable whose specifications
meet or are less than the values in the table.
• 600-V Heat-resistant Vinyl Cables (HIV)
Note: The values in the table are only for reference.
5.3.2 Single-phase 100 V
IMPORTANT
Cable Types
Allowable
Conductor
Temperature
°
C
Symbol
Name
PVC
Normal vinyl cable
−
IV
600-V vinyl cable
60
HIV
Temperature-resistant
vinyl cable
75
AWG Size
Nominal
Cross
Section
Diameter
mm
2
Configuration
Number of
wires/mm
2
Conductive
Resistance
Ω
/km
Allowable Current at Surrounding Air
Temperature A
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
91
81
66
External Terminal Name
Terminal
Symbol
SERVOPACK Model SGDM-
A3BD
A3BDA
A5BD
A5BDA
01BD
01BDA
02BD
02BDA
Main circuit power supply input terminals
L1, L2
HIV1.25
HIV2.0
Servomotor connection terminals
U, V, W
HIV1.25
Control power supply input terminals
L1C, L2C
HIV1.25
External regenerative resistor connection
terminals
B1, B2
HIV1.25
Ground terminal
HIV2.0 or more
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