2.5.4
Applicable cables and wiring length
Select a recommended cable size to ensure that the voltage drop ratio is within 2%.
If the wiring distance is long between the inverter and motor, the voltage drop in the main circuit will cause the motor torque to
decrease especially at a low speed.
The following table shows a selection example for the wiring length of 20 m.
• Converter unit (FR-CC2)
Converter
Terminal
Tightening
model
screw
FR-CC2-H[ ]
Size
315K
M12 (M10)
46
355K
M12 (M10)
46
400K
M12 (M10)
46
450K
M12 (M10)
46
500K
M12 (M10)
46
560K
M12 (M10)
46
630K
M12 (M10)
46
• Inverter (LD rating)
Inverter
Terminal
Tightening
model
screw
Torque
FR-F840-[ ]
size
07700(355K) M12(M10)
46
08660(400K) M12(M10)
46
09620(450K) M12(M10)
46
10940(500K) M12(M10)
46
12120(560K) M12(M10)
46
• Inverter (SLD rating)
Inverter
Terminal
Tightening
model
screw
Torque
FR-F840-[ ]
size
07700(355K) M12(M10)
46
08660(400K) M12(M10)
46
09620(450K) M12(M10)
46
10940(500K) M12(M10)
46
12120(560K) M12(M10)
46
It is the gauge of the cable with the continuous maximum permissible temperature of 90°C or higher (LMFC (heat resistant flexible cross-linked
polyethylene insulated cable), etc.). It assumes a surrounding air temperature of 50°C or lower and in-enclosure wiring.
It is the gauge of the cable with continuous maximum permissible temperature of 90°C (THHN cable). It assumes a surrounding air temperature
of 40°C or lower and in-enclosure wiring.
(For the use in the United States or Canada, refer to
It is the gauge of the cable with continuous maximum permissible temperature of 90°C (XLPE cable). It assumes a surrounding air temperature
of 40°C or lower and in-enclosure wiring.
(Selection example mainly for use in Europe.)
The terminal screw size indicates the size of a terminal screw for R/L1, S/L2, T/L3, U, V, W, P/+, N/-, and a screw for earthing (grounding).
The screw size for earthing (grounding) terminal is indicated in parentheses.
Crimp
terminal
Torque
R/L1,
R/L1,
N·m
S/L2,
S/L2,
T/L3
T/L3
150-12
2150
C2-200
2200
C2-200
2200
C2-250
2250
C2-200
3200
C2-200
3200
C2-200
3200
Crimp
terminal
HIV cables, etc. (mm
N·m
U, V, W
U, V, W
200-12
2200
C2-200
2200
C2-250
2250
C2-250
2250
C2-200
3200
Crimp
terminal
HIV cables, etc. (mm
N·m
U, V, W
U, V, W
C2-200
2200
C2-250
2250
C2-250
2250
C2-200
3200
C2-200
3200
page
Cable gauge
2
HIV cables, etc. (mm
)
Earthing
P/+, N/-
(grounding)
cable
2150
100
2200
100
2200
100
2250
100
3200
2100
3200
2100
3200
2100
Cable gauge
2
AWG/MCM
)
Earthing
P/+, N/-
(grounding)
cable
2150
100
2350
2200
100
2400
2200
100
2500
2250
2100
2500
3200
2100
3350
Cable gauge
2
AWG/MCM
)
Earthing
P/+, N/-
(grounding)
cable
2200
100
2400
2200
100
2500
2250
2100
2500
3200
2100
3350
3200
2100
3400
108.)
INSTALLATION AND WIRING
Main circuit terminals
PVC cables, etc.
AWG/MCM
2
(mm
)
R/L1,
R/L1,
Earthing
S/L2,
S/L2,
(grounding)
T/L3
T/L3
cable
2300
2150
150
2350
2185
295
2400
2185
295
2500
2240
2120
2500
2240
2120
3350
3185
2150
3400
3185
2150
PVC cables, etc.
2
(mm
)
Earthing
U, V, W
U, V, W
(grounding)
cable
2185
295
2185
295
2240
2120
2240
2120
3185
2150
PVC cables, etc.
2
(mm
)
Earthing
U, V, W
U, V, W
(grounding)
cable
2185
295
2240
2120
2240
2120
3185
2150
3185
2150
2
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