Mitsubishi 840 Series Specifications download pdf (Page 16)

WIRING

3.3 Wiring fundamentals

3.3.1 Cable size

Select the recommended cable size to ensure that a voltage drop will be 2% max.

If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor torque

to decrease especially at the output of a low frequency.

The following table indicates a selection example for the wiring length of 20m.

200V class (when input power supply is 220V based on the rated current for 150% overload for 1 minute)

For footnotes *1 to *4 refer to page 12.

Applicable Inverter Type

Terminal Screw Size *

Tightening Torque

[Nm]

Crimping Terminal

R/L1, S/L2, T/L3 U, V, W

FR-A820-00046(0.4K) to

00167(2.2K)

M4 1.5 2-4 2-4

FR-A820-00250(3.7K) M4 1.5 5.5-4 5.5-4

FR-A820-00340(5.5K) M5(M4) 2.5 5.5-5 5.5-5

FR-A820-00490(7.5K) M5(M4) 2.5 14-5 8-5

FR-A820-00630(11K) M5 2.5 14-5 14-5

FR-A820-00770(15K) M6 4.4 22-6 22-6

FR-A820-00930(18.5K) M8(M6) 7.8 38-8 38-8

FR-A820-01250(22K) M8(M6) 7.8 38-8 38-8

FR-A820-01540(30K) M8(M6) 7.8 60-8 60-8

FR-A820-01870(37K) M10(M8) 14.7 80-10 80-10

FR-A820-02330(45K) M10(M8) 14.7 100-10 100-10

FR-A820-03160(55K) M12(M8) 24.5 100-12 100-12

FR-A820-03800(75K) M12(M8) 24.5 150-12 150-12

FR-A820-04750(90K) M12(M8) 24.5 150-12 150-12

Applicable Inverter Type

Cable Sizes

HIV, etc. [mm

] *

AWG/MCM *

PVC, etc. [mm

] *

R/L1,

S/L2,

T/L3

U, V, W P/+, P1

Earth

Cable

Gauge

R/L1,

S/L2,

T/L3

U, V, W

R/L1,

S/L2,

T/L3

U, V, W

Earth

Cable

Gauge

FR-A820-00046(0.4K) to

00167(2.2K)

2 2 2 2 14 14 2.5 2.5 2.5

FR-A820-00250(3.7K) 3.5 3.5 3.5 3.5 12 12 4 4 4

FR-A820-00340(5.5K) 5.5 5.5 5.5 5.5 10 10 6 6 6

FR-A820-00490(7.5K) 14 8 14 5.5 6 8 16 10 16

FR-A820-00630(11K) 14 14 14 8 6 6 16 16 16

FR-A820-00770(15K) 22222214 4 4 252516

FR-A820-00930(18.5K) 38383814 2 2 353525

FR-A820-01250(22K) 38383822 2 2 353525

FR-A820-01540(30K) 606060221/01/0505025

FR-A820-01870(37K) 808080223/03/0707035

FR-A820-02330(45K) 100 100 100 38 4/0 4/0 95 95 50

FR-A820-03160(55K) 100 100 100 38 4/0 4/0 95 95 50

FR-A820-03800(75K) 125 125 125 38 250 250 — — —

FR-A820-04750(90K) 150 150 150 38 300 300 — — —

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 57 58

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Mitsubishi 840 Series Specifications Page 16

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