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*1
For the FR-A720-02150 or lower, and FR-A740-01100 or lower, 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 (167°F). Assumes that the surrounding air temperature is 50°C (122°F) or less and the
wiring distance is 20m (65.62feet) or less.
For the FR-A720-02880 or higher, and FR-A740-01440 or higher, 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 (194°F). Assumes that the surrounding air
temperature is 50°C (122°F) or less and wiring is performed in an enclosure.
*2
For the all capacity of 200V class, and FR-A740-00860 or lower, the recommended cable size is that of the cable (THHW cable) with continuous
maximum permissible temperature of 75°C (167°F). Assumes that the surrounding air temperature is 40°C (104°F) or less and the wiring distance is
20m (65.62feet) or less.
For the FR-A740-01100 or higher, the recommended cable size is that of the cable (THHN cable) with continuous maximum permissible temperature of
90°C (194°F). Assumes that the surrounding air temperature is 40°C (104°F) or less and wiring is performed in an enclosure.
(Selection example for use mainly in the United States.)
*3
For the FR-A720-00610 or lower, and FR-A740-00860 or lower, the recommended cable size is that of the cable (PVC cable) with continuous
maximum permissible temperature of 70°C (158°F). Assumes that the surrounding air temperature is 40°C (104°F) or less and the wiring distance is
20m (65.62feet) or less.
For the FR-A720-00760 or higher, and FR-A740-01100 or higher, the recommended cable size is that of the cable (XLPE cable) with continuous
maximum permissible temperature of 90°C (194°F). Assumes that the surrounding air temperature is 40°C (104°F) 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, PR, PX, P/+, N/-, P1 and a screw for earthing (grounding).
For the FR-A720-00240 and 00330, screw size of terminal PR and PX is indicated in ( ).
A screw for earthing (grounding) of the FR-A720-00760 or higher is indicated in ( ).
A screw for P/+ terminal for option connection of the FR-A740-02160 and 02600 is indicated in ( ).
A screw for earthing (grounding) of the FR-A740-03250 or higher is indicated in ( ).
The line voltage drop can be calculated by the following formula:
3 × wire resistance[mΩ/m] × wiring distance[m] × current[A]
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.
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.
Main circuit terminal specifications
1000
2
21
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