Mitsubishi Electric F700 Instruction Manual page 21
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Wiring
(1) Cable sizes etc., of the main control circuit terminals and earth (ground) terminals
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)
Terminal
Applicable Inverter
Screw
Type
Size
FR-F720-0.75K to
M4
2.2K
FR-F720-3.7K
M4
FR-F720-5.5K
M4
FR-F720-7.5K
M5
FR-F720-11K
M5
FR-F720-15K
M5
FR-F720-18.5K
M6
FR-F720-22K
M8 (M6)
FR-F720-30K
M8 (M6)
FR-F720-37K
M8 (M6)
FR-F720-45K
M10 (M8)
FR-F720-55K
M10 (M8)
FR-F720-75K
M12 (M10)
FR-F720-90K
M12 (M10)
FR-F720-110K
M12 (M10)
*1
The cable size is that of the cable (HIV cable (600V class 2 vinyl-insulated cable) etc.) 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.
*2
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.
(Selection example for use mainly in the United States.)
*3
For the 15K 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 18.5K 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 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 22K or more is indicated in ( ).
*5
When connecting the option unit to P/+, P1, N/-, use THHN cables for the option and terminals R/L1, S/L2, T/L3, U, V, W.
14
Crimping
Terminal
Tightening
Torque
R/L1,
N·m
*4
U, V, W
S/L2,
T/L3
1.5
2-4
2-4
1.5
5.5-4
5.5-4
1.5
5.5-4
5.5-4
2.5
14-5
8-5
2.5
14-5
14-5
2.5
22-5
22-5
4.4
38-6
38-6
7.8
38-8
38-8
7.8
60-8
60-8
7.8
80-8
80-8
14.7
100-10 100-10
14.7
100-10 100-10
24.5
150-12 150-12
24.5
150-12 150-12
24.5
100-12 100-12
2
HIV, etc. (mm
)
*1
Earth
R/L1,
U, V, W
(Ground)
S/L2,
T/L3
cable
2
2
2
3.5
3.5
3.5
5.5
5.5
5.5
14
8
5.5
14
14
14
22
22
14
38
38
22
38
38
22
60
60
22
80
80
22
100
100
38
100
100
38
125
125
38
MCM250 MCM250
150
150
38
2×100
2×100
38
Cable Sizes
AWG/MCM
PVC, etc. (mm
*2
R/L1,
R/L1,
U, V, W
U, V, W
S/L2,
S/L2,
T/L3
T/L3
14
14
2.5
12
12
4
10
10
6
6
8
16
6
6
16
4
6 (
)
25
*5
2
2
35
2
2
35
1/0
1/0
50
3/0
3/0
70
4/0
4/0
95
4/0
4/0
95
⎯
⎯
2×4/0
2×4/0
⎯
2×4/0
2×4/0
2
)
*3
Earth
(Ground)
cable
2.5
2.5
4
4
6
6
10
16
16
16
25
16
35
25
35
25
50
25
70
35
95
50
95
50
⎯
⎯
⎯
⎯
⎯
⎯
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