Cables And Wiring Length - Mitsubishi Electric FR-E700EX Instruction Manual

Main circuit terminal specifications
2.2.3

Cables and wiring length

(1) Applicable cable size
Select the recommended cable size to ensure that a voltage drop will be 2% at maximum.
The following table indicates a selection example for the wiring length of 20m.
Three-phase 200V class (when input power supply is 220V)
(1) MM-GKR motor
Applicable drive unit
Model
FR-E720EX-0.1K to 0.75K

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.

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.)

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. (Selection example for use mainly in Europe.)

The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, PR, P/+, N/-, P1 and a screw for earthing (grounding).
2

The size is 0.75mm (AWG19 or AWG18) when using the motor power supply cable for MM-GKR motor (MR-PWS1CBL
When the wiring length of the power supply cable for the motor is 10 m or longer, extend the cable using MR-PWS2CBL03M-A_-L and an HIV wire of 1.25
2
mm (AWG 16)
For compliance with UL/CSA standards, extend the power supply cable for the motor using MR-PWS2CBL03M-A_-L and an HIV wire of 2 mm
(2) S-PM geared motor
Applicable drive unit
Model
FR-E720EX-0.2K to 0.75K
FR-E720EX-1.5K to 3.7K

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.

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.)

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. (Selection example for use mainly in Europe.)

The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, PR, P/+, N/-, P1 and a screw for earthing (grounding).
....... Specifications differ according to the date assembled. Refer to page 316 to check the SERIAL number.
NOTE
 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.
The line voltage drop can be calculated by the following formula:
Line voltage drop [V]= 3 × wire resistance[mΩ/m] × wiring distance[m] × current[A]
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.
16
Crimping
Terminal
Terminal
Tightening
Screw Torque
N·m
R/L1
Size

S/L2
T/L3
M3.5 1.2 2-3.5 1.25-3.5
Crimping
Terminal
Terminal
Tightening
Screw Torque
N·m
R/L1
Size

S/L2
T/L3
M3.5 1.2 2-3.5
M4 1.5 2-4
1000
HIV Cables, etc.
2
(mm )

R/L1 Earthing
U, V, W S/L2 U, V, W (grounding)
T/L3 cable
-
2 2
( )
HIV Cables, etc.
2
(mm )

R/L1 Earthing
U, V, W S/L2 U, V, W (grounding)
T/L3 cable
2-3.5
2 2 2
2-4
Cable Size
PVC Cables, etc.
AWG

(mm
R/L1 R/L1
S/L2 U, V, W S/L2 U, V, W
T/L3 T/L3
- -
14 2.5
( ) ( )
  
M-A - ).
2
Cable Size
PVC Cables, etc.
AWG

(mm
R/L1 R/L1
S/L2 U, V, W S/L2 U, V, W
T/L3 T/L3
14 14 2.5 2.5
2
)

Earthing
(grounding)
cable
2.5
(AWG 14).
2
)

Earthing
(grounding)
cable
2.5