Mitsubishi FR-A740-00023-EC - Cables and Wiring Length

18
Main circuit terminal specifications
2.2.3 Cables and wiring length
(1) Applied cable size
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.
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
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 P/+, P1
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-A740-00023 to
00126-EC
M4 1.5 2-4 2-4 2 2 2 2 14 14 2.5 2.5 2.5
FR-A740-00170-EC M4 1.5 2-4 2-4 2 2 3.5 3.5 12 14 2.5 2.5 4
FR-A740-00250-EC M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 3.5 12 12 4 4 4
FR-A740-00310-EC M5 2.5 5.5-5 5.5-5 5.5 5.5 5.5 8 10 10 6 6 10
FR-A740-00380-EC M5 2.5 8-5 8-5 8 8 8 8 8 8 10 10 10
FR-A740-00470-EC M6 4.4 14-6 8-6 14 8 14 14 6 8 16 10 16
FR-A740-00620-EC M6 4.4 14-6 14-6 14 14 22 14 6 6 16 16 16
FR-A740-00770-EC M6 4.4 22-6 22-6 22 22 22 14 4 4 25 25 16
FR-A740-00930-EC M8 7.8 22-8 22-8 22 22 22 14 4 4 25 25 16
FR-A740-01160-EC M8 7.8 38-8 38-8 38 38 38 22 1 2 50 50 25
FR-A740-01800-EC M8 7.8 60-8 60-8 60 60 60 22 1/0 1/0 50 50 25
FR-A740-02160-EC M10 14.7 60-10 60-10 60 60 60 38 1/0 1/0 50 50 25
FR-A740-02600-EC M10 14.7 60-10 60-10 60 60 80 38 3/0 3/0 50 50 25
FR-A740-03250-EC
M10 - M12 14.7 80-10 80-10 80 80 80 38 3/0 3/0 70 70 35
FR-A740-03610-EC
M10 - M12 14.7 100-10 100-10 100 100 100 38 4/0 4/0 95 95 50
FR-A740-04320-EC
M12 - M10 24.5 150-12 150-12 125 150 150 38 250 250 120 120 70
FR-A740-04810-EC
M12 - M10 24.5 150-12 150-12 150 150 150 38 300 300 150 150 95
FR-A740-05470-EC
M12 - M10 24.5 100-12 100-12 2×100 2×100 2×100 60 2×4/0 2×4/0 2×95 2×95 95
FR-A740-06100-EC
M12 - M10 24.5 100-12 100-12 2×100 2×100 2×125 60 2×4/0 2×4/0 2×95 2×95 95
FR-A740-06830-EC
M12 - M10 24.5 150-12 150-12 2×125 2×125 2×125 60 2×250 2×250 2×120 2×120 120
FR-A740-07700-EC
M12 - M10 24.5 150-12 150-12 2×150 2×150 2×150 100 2×300 2×300 2×150 2×150 150
FR-A740-08660-EC
M12 - M10 24.5 C2-200 C2-200 2×200 2×200 2×200 100 2×350 2×350 2×185 2×185 2×95
FR-A740-09620-EC
M12 - M10 24.5 C2-200 C2-200 2×200 2×200 2×200 100 2×400 2×400 2×185 2×185 2×95
FR-A740-10940-EC
M12 - M10 24.5 C2-250 C2-250 2×250 2×250 2×250 100 2×500 2×500 2×240 2×240 2×120
FR-A740-12120-EC
M12 - M10 24.5 C2-200 C2-250 3×200 2×250 3×200 2×100 2×500 2×500 2×240 2×240 2×120
*1 For the 01800 or less, 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 ambient temperature is 50°C or less and the wiring distance is 20m or less.
For the
02160 or more, the recommended cable size is that of the cable (LMFC (heat resistant flexible cross-linked polyethylene insulated cable) etc.)
with continuous maximum permissible temperature of
90°C . Assumes that the ambient temperature is 50°C or less and wiring is performed in an
enclosure.
*2 For the
01160 or less, the recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C .
Assumes that the ambient temperature is
40°C or less and the wiring distance is 20m or less.
For the
01800 or more, the recommended cable size is that of the cable (THHN cable) with continuous maximum permissible temperature of 90°C .
Assumes that the ambient 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 01160 or less, the recommended cable size is that of the cable (PVC cable) with continuous maximum permissible temperature of 70°C .
Assumes that the ambient temperature is
40°C or less and the wiring distance is 20m or less.
For the
01800 or more, the recommended cable size is that of the cable (XLPE cable) with continuous maximum permissible temperature of 90°C .
Assumes that the ambient 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).
For the
03250 and 03610 , screw sizes are different (<R/L1, S/L2, T/L3, U, V, W, a screw for earthing (grounding)> - <P/+ for option connection>)
For the
04320 or more, screw sizes are different. (<R/L1, S/L2, T/L3, U, V, W> - <a screw for earthing (grounding)>)
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[mΩ/m] × wiring distance[m] × current[A]
1000