Mitsubishi Electric 800 Series Instruction Manual page 45

2.5.3 Applicable cables and the wiring length
Select a recommended cable size to ensure that the voltage drop will be 2% or less.
If the wiring distance is long between the inverter and motor, the voltage drop in the main circuit wires will cause the motor
torque to decrease especially at a low speed.
The following table indicates a selection example for the wiring length of 20 m.
 SLD rating (Pr.570 Multiple rating setting = "0")
• 600 V class (575 V input power supply, without a power factor improving AC or DC reactor)
Applicable Terminal
inverter model screw
FR-F860-[ ] size
00027 to 00090 M4
00170 M4
00320 M5
00450 M6
00680 M8
01080 M8
01440 M10
01670 M10
02430 M10
02890 M12(M10)
03360 M12(M10)
04420 M12(M10)
Applicable Terminal
inverter model screw
FR-F860-[ ] size
00027 to 00090 M4
00170 M4
00320 M5
00450 M6
00680 M8
01080 M8
01440 M10
01670 M10
02430 M10
02890 M12(M10)
03360 M12(M10)
04420 M12(M10)
44
2. INSTALLATION AND WIRING
2.5 Main circuit terminals
Tightening
torque
*2
N•m
R/L1,
S/L2,
T/L3
1.5 2-4
1.5 3.5-4
2.5 8-5
4.4 14-6
7.8 22-8
7.8 —
26.5 —
26.5 —
26.5 —
46 —
46 —
46 —
Tightening
torque
*2
N•m
R/L1,
S/L2,
T/L3
1.5 2-4
1.5 3.5-4
2.5 8-5
4.4 14-6
7.8 22-8
7.8 —
26.5 —
26.5 —
26.5 —
46 —
46 —
46 —
Crimping terminal
U, V, W P/+, Earthing
P1 (grounding)
cable
2-4 2-4 2-4
2-4 3.5-4 3.5-4
5.5-5 8-5 5.5-5
14-6 14-6 14-6
22-8 22-8 22-8
— — —
— — —
— — —
— — —
— — —
— — —
— — —
Crimping terminal
U, V, W P/+, Earthing
P1 (grounding)
cable
2-4 2-4 2-4
2-4 3.5-4 3.5-4
5.5-5 8-5 5.5-5
14-6 14-6 14-6
22-8 22-8 22-8
— — —
— — —
— — —
— — —
— — —
— — —
— — —
*1
Cable gauge
HIV cables, etc. (mm
R/L1, U, V, P/+,
S/L2, W P1 (grounding)
T/L3
2 2 2 2
3.5 2 3.5 3.5
8 5.5 8 5.5
14 14 14 14
22 22 22 22
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
*1
Cable gauge
AWG/MCM
R/L1, U, V, P/+,
S/L2, W P1 (grounding)
T/L3
14 14 14 14
10 14 10 12
8 10 8 10
4 6 4 6
2 4 2 4
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
2
)
Earthing
cable
Earthing
cable