Servopack Main Circuit Wire Size; Cable Types - YASKAWA SGLFW User Manual

6.6 SERVOPACK Main Circuit Wire Size

1. Wire sizes were selected for three cables per bundle at 40 °C (104 °F) ambient temperature with the rated
IMPORTANT
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 ambient or panel temperatures where normal vinyl cables will rap-
idly deteriorate.
5. Use cables within the allowable mass.
6. Do not use cables under continuous regenerative state.

6.6.1 Cable Types

Cable Types
Symbol
PVC Normal vinyl cable
IV 600-V vinyl cable
Temperature-resistant
HIV
vinyl cable
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)
AWG Size
20
-
18
16
14
12
10
8
6
4
Note: The values in the table are only for reference.
Allowable
Conductor
Temperature
Name
°C (°F)
−
60 (140)
75 (167)
Nominal
Cross Configuration
Section Number of
Diameter
2
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 7/0.6
3.5 7/0.8
5.5 7/1.0
8.0 7/1.2
14.0 7/1.6
22.0 7/2.0
Allowable Current at Ambient Temperature
Conductive
Resistance
Ω/km °
30°C (86 F)
39.5 6.6
26.0 8.8
24.4 9.0
15.6 12.0
9.53 23
5.41 33
3.47 43
2.41 55
1.35 79
0.85 91

6.6 SERVOPACK Main Circuit Wire Size

A
40°C 50°C
° °
(104 F) (122 F)
5.6 4.5
7.0 5.5
7.7 6.0
11.0 8.5
20 16
29 24
38 31
49 40
70 57
81 66
6
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