YASKAWA FSP Series Guide d'installation télécharger pdf (Page 25)

FSP Amplifier Short Form Installation Guide Wiring

5.3. Main Circuit Wire Size

 Cable Types

Cabl e Type s

Symbol Name

Allowable Conductor

Temperature ºC (ºF)

PVC Normal vinyl cable —

IV 600V vinyl cable 60 (140)

HIV Temperature-resistant vinyl cable 75 (167)

• Wire sizes are selected for three cables per bundle at 40°C (104°F) ambient

temperature with the rated current.

• Use cable with a minimum withstand voltage of 600V for main circuits.

• If cables are bundled in PVC or metal ducts, consider the reduction ratio of the

allowable current.

• Use heat-resistant cables under high ambient or panel temperatures where

normal vinyl cables will rapidly deteriorate.

• Use cables within the allowable moment of inertia.

• Do not use cables under continuous regenerative state.

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)

Allowable Current at Ambient

Temperature

AWG

Size

Nominal

Cross

Section

Diameter

(in

)

Configuration

Number of

wires/mm

(in

)

Conductive

Resistance

Ω/km

30°C

(86°F)

40°C

(104°F)

50°C

(122°F)

20 0.5 (0.00078) 19/0.18 (0.00028)

39.5 6.6 5.6

4.5

—

0.75

(0.00116) 30/0.18 (0.00028)

26.0 8.8

7.0 5.5

18 0.9 (0.00140) 37/0.18 (0.00028)

24.4 9.0

7.7 6.0

16 1.25 (0.00193) 50/0.18 (0.00028)

15.6 12.0

11.0 8.5

14 2.0 (0.00310) 7/0.6 (0.00093)

9.53 23

20 16

12 3.5 (0.00543) 7/0.8 (0.00124)

5.41 33

29 24

10 5.5 (0.00853) 7/1.0 (0.00155)

3.47 43

38 31

8 8.0 (0.01240) 7/1.2 (0.00186)

2.41 55

49 40

6 14.0 (0.02170) 7/1.6 (0.00248)

1.35 79

70 57

4 22.0 (0.03410) 7/2.0 (0.00310)

0.85 91

81 66

Note: The values in the table are for reference only .

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 57 58

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