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2. INSTALLATION AND WIRING
2.5 Main circuit terminals
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
inverter model
FR-F860-[ ]
Terminal
screw
size
*2
Tightening
torque
N•m
Crimping terminal Cable gauge
*1
HIV cables, etc. (mm
2
)
R/L1,
S/L2,
T/L3
U, V, W P/+,
P1
Earthing
(grounding)
cable
R/L1,
S/L2,
T/L3
U, V,
W
P/+,
P1
Earthing
(grounding)
cable
00027 to 00090 M4 1.5 2-4 2-4 2-4 2-4 2 2 2 2
00170 M4 1.5 3.5-4 2-4 3.5-4 3.5-4 3.5 2 3.5 3.5
00320 M5 2.5 8-5 5.5-5 8-5 5.5-5 8 5.5 8 5.5
00450 M6 4.4 14-6 14-6 14-6 14-6 14 14 14 14
00680 M8 7.8 22-8 22-8 22-8 22-8 22 22 22 22
01080 M8 7.8 — — — — — — — —
01440 M10 26.5 — — — — — — — —
01670 M10 26.5 — — — — — — — —
02430 M10 26.5 — — — — — — — —
02890 M12(M10) 46 — — — — — — — —
03360 M12(M10) 46 — — — — — — — —
04420 M12(M10) 46 — — — — — — — —
Applicable
inverter model
FR-F860-[ ]
Terminal
screw
size
*2
Tightening
torque
N•m
Crimping terminal Cable gauge
*1
AWG/MCM
R/L1,
S/L2,
T/L3
U, V, W P/+,
P1
Earthing
(grounding)
cable
R/L1,
S/L2,
T/L3
U, V,
W
P/+,
P1
Earthing
(grounding)
cable
00027 to 00090 M4 1.5 2-4 2-4 2-4 2-4 14 14 14 14
00170 M4 1.5 3.5-4 2-4 3.5-4 3.5-4 10 14 10 12
00320 M5 2.5 8-5 5.5-5 8-5 5.5-5 8 10 8 10
00450 M6 4.4 14-6 14-6 14-6 14-6 4 6 4 6
00680 M8 7.8 22-8 22-8 22-8 22-8 2 4 2 4
01080 M8 7.8 — — — — — — — —
01440 M10 26.5 — — — — — — — —
01670 M10 26.5 — — — — — — — —
02430 M10 26.5 — — — — — — — —
02890 M12(M10) 46 — — — — — — — —
03360 M12(M10) 46 — — — — — — — —
04420 M12(M10) 46 — — — — — — — —
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