21
Main circuit terminal specifications
400V class (when input power supply is 440V)
The line voltage drop can be calculated by the following formula:
line voltage drop [V]=
Use a larger diameter cable when the wiring distance is long or when it is desired to decrease the voltage drop (torque
reduction) in the low speed range.
Applicable
Inverter Type
Terminal
Screw
Size
*4
Tightening
Torque
N·m
Crimping
(Compression)
Terminal
Cable Sizes
HIV, etc. (mm
2
)
*1
AWG/MCM
*2
PVC, etc. (mm
2
)
*3
R/L1, S/L2,
T/L3
U, V, W
R/L1, S/L2,
T/L3
U, V, W
Earth
(Ground)
cable
R/L1, S/L2,
T/L3
U, V, W
R/L1, S/L2,
T/L3
U, V, W
Earth
(Ground)
cable
FR-F740-0.75K to
3.7K
M4
1.5
2-4
2-4
2
2
2
14
14
2.5
2.5
2.5
FR-F740-5.5K
M4
1.5
2-4
2-4
2
2
3.5
12
14
2.5
2.5
4
FR-F740-7.5K
M4
1.5
5.5-4
5.5-4
3.5
3.5
3.5
12
12
4
4
4
FR-F740-11K
M4
1.5
5.5-4
5.5-4
5.5
5.5
8
10
10
6
6
10
FR-F740-15K
M5
2.5
8-5
8-5
8
8
8
8
8
10
10
10
FR-F740-18.5K
M5
2.5
14-5
8-5
14
8
14
6
8
16
10
16
FR-F740-22K
M6
4.4
14-6
14-6
14
14
14
6
6
16
16
16
FR-F740-30K
M6
4.4
22-6
22-6
22
22
14
4
4
25
25
16
FR-F740-37K
M6
4.4
22-6
22-6
22
22
14
4
4
25
25
16
FR-F740-45K
M8
7.8
38-8
38-8
38
38
22
1
2
50
50
25
FR-F740-55K
M8
7.8
60-8
60-8
60
60
22
1/0
1/0
50
50
25
FR-F740-75K
M8
7.8
60-8
60-8
60
60
38
1/0
1/0
50
50
25
FR-F740-90K
M10
14.7
60-10
60-10
60
60
38
3/0
3/0
50
50
25
FR-F740-110K
M10
14.7
80-10
80-10
80
80
38
3/0
3/0
70
70
35
FR-F740-132K
M10
14.7
100-10 100-10
100
100
38
4/0
4/0
95
95
50
FR-F740-160K
M10
14.7
150-10 150-10
125
125
38
250
250
120
120
70
FR-F740-185K
M12 (M10)
24.5
150-12 150-12
150
150
38
300
300
150
150
95
FR-F740-220K
M12 (M10)
24.5
100-12 100-12
2
×
100
2
×
100
38
2
×
4/0
2
×
4/0
2
×
95
2
×
95
95
FR-F740-250K
M12 (M10)
24.5
100-12 100-12
2
×
100
2
×
100
38
2
×
4/0
2
×
4/0
2
×
95
2
×
95
95
FR-F740-280K
M12 (M10)
24.5
150-12 150-12
2
×
125
2
×
125
38
2
×
250
2
×
250
2
×
120
2
×
120
120
FR-F740-315K
M12 (M10)
24.5
150-12 150-12
2
×
150
2
×
150
38
2
×
300
2
×
300
2
×
150
2
×
150
150
FR-F740-355K
M12 (M10)
24.5
200-12 200-12
2
×
200
2
×
200
60
2
×
350
2
×
350
2
×
185
2
×
185
2
×
95
FR-F740-400K
M12 (M10)
24.5
C2-200 C2-200 2
×
200
2
×
200
60
2
×
400
2
×
400
2
×
185
2
×
185
2
×
95
FR-F740-450K
M12 (M10)
24.5
C2-250 C2-250 2
×
250
2
×
250
60
2
×
500
2
×
500
2
×
240
2
×
240
2
×
120
FR-F740-500K
M12 (M10)
24.5
C2-250 C2-250 2
×
250
2
×
250
100
2
×
500
2
×
500
2
×
240
2
×
240
2
×
120
FR-F740-560K
M12 (M10)
24.5
C2-200 C2-200 3
×
200
3
×
200
100
3
×
350
3
×
350
3
×
185
3
×
185
2
×
150
*1
For the FR-F740-55K or less, the recommended cable size is that of the cable (e.g. HIV cable (600V class 2 vinyl-insulated cable)) with continuous
maximum permissible temperature of 75°C. Assumes that the surrounding air temperature is 50°C or less and the wiring distance is 20m or less.
For the FR-F740-75K or more, the recommended cable size is that of the cable (e.g. LMFC (heat resistant flexible cross-linked polyethylene insulated
cable)) with continuous maximum permissible temperature of 90°C. Assumes that the surrounding air temperature is 50°C or less and wiring is performed
in an enclosure.
*2
For the FR-F740-45K or less, the recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C.
Assumes that the surrounding air temperature is 40°C or less and the wiring distance is 20m or less.
For the FR-F740-55K or more, the recommended cable size is that of the cable (THHN cable) with continuous maximum permissible temperature of 90°C.
Assumes that the surrounding air temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in the United States.)
*3
For the FR-F740-45K or less, the recommended cable size is that of the cable (PVC cable) with continuous maximum permissible temperature of 70°C.
Assumes that the surrounding air temperature is 40°C or less and the wiring distance is 20m or less.
For the FR-F740-55K or more, the recommended cable size is that of the cable (XLPE cable) with continuous maximum permissible temperature of 90°C.
Assumes that the surrounding air temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in the Europe.)
*4
The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, and a screw for earthing (grounding).
A screw for earthing (grounding) of the 185K or more is indicated in ( ).
CAUTION
· Tighten the terminal screw to the specified torque.
A screw that has been tighten too loosely can cause a short circuit or malfunction.
A screw that has been tighten too tightly can cause a short circuit or malfunction due to the unit breakage.
· Use crimping terminals with insulation sleeve to wire the power supply and motor.
3
×
wire resistance[m
Ω
/m]
×
wiring distance[m]
×
current[A]
1000