Mitsubishi Electric FR-A520-0.4K Instruction Manual page 28

(3) Cables, crimping terminals, etc.
The following table lists the cables and crimping terminals used with the inputs (R, S, T) and outputs (U, V,
W) of the inverter and the torques for tightening the screws:
•
FR-A520-0.4K to 55K
Terminal Tightening
Applicable Inverter
Screw
Type
Size
FR-A520-0.4K to 2.2K M4
FR-A520-3.7K M4
FR-A520-5.5K M5
FR-A520-7.5K M5
FR-A520-11K M5
FR-A520-15K M6
FR-A520-18.5K M8
FR-A520-22K M8
FR-A520-30K M8
FR-A520-37K M10
FR-A520-45K M10
FR-A520-55K M12
•
FR-A540-0.4K to 55K
Terminal Tightening
Applicable Inverter
Screw
Type
Size
FR-A540-0.4K to 3.7K M4
FR-A540-5.5K M4
FR-A540-7.5K M4
FR-A540-11K M6
FR-A540-15K M6
FR-A540-18.5K M6
FR-A540-22K M6
FR-A540-30K M6
FR-A540-37K M8
FR-A540-45K M8
FR-A540-55K M8
Note: 1. The cables used should be 75°C copper cables.
2. Tighten the terminal screws to the specified torques.
Undertightening can cause a short or misoperation.
Overtightening can cause the screws and unit to be damaged, resulting in a short or
misoperation.
(4) Connection of the power supply and motor
Power
supply
o-fuse
reaker
Crimping Terminals
Torque
N⋅m
R, S, T U, V, W
1.5 2-4 2-4
1.5 5.5-4 5.5-4
2.5 5.5-5 5.5-5
2.5 14-5 8-5
2.5 14-5 14-5
4.4 22-6 22-6
7.8 38-8 38-8
7.8 38-8 38-8
7.8 60-8 60-8
14.7 100-10 100-10
14.7 100-10 100-10
24.5 150-12 150-12
Crimping Terminals
Torque
N⋅m
R, S, T U, V, W
1.5 2-4 2-4
1.5 5.5-4 2-4
1.5 5.5-4 5.5-4
4.4 5.5-6 5.5-6
4.4 14-6 8-6
4.4 14-6 8-6
4.4 22-6 14-6
4.4 22-6 22-6
7.8 38-8 22-8
7.8 38-8 38-8
7.8 60-8 60-8
U
R S T
R S T U
The power supply cables
must be connected to R, S, T.
If they are connected to U, V,
W, the inverter will be damaged.
Phase sequence need not be
matched.
For use with a single-phase
power supply,the power supply
cables must be connected to
R and S.
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INSTALLATION AND WIRING
HIV Cables (Note 1)
2
mm
R, S, T U, V, W
2 2
3.5 3.5
5.5 5.5
14 8
14 14
22 22
38 38
38 38
60 60
100 100
100 100
150 150
HIV Cables (Note 1)
2
mm
R, S, T U, V, W
2 2
3.5 2
3.5 3.5
5.5 5.5
14 8
14 8
22 14
22 22
38 22
38 38
60 60
Earth (Ground)
V W
terminal
Motor
V W
Earth
(Ground)
Connect the motor to U, V, W.
In the above connection,
turning on the forward rotation
switch (signal) rotates the motor
in the counterclockwise (arrow)
direction when viewed from
the load shaft.
19
AWG
R, S, T U, V, W
14 14
12 12
10 10
6 8
6 6
4 4
2 2
2 2
1/0 1/0
4/0 4/0
4/0 4/0
MCM300 MCM300
AWG
R, S, T U, V, W
14 14
12 14
12 12
10 10
6 8
6 8
4 6
4 4
2 4
2 2
1/0 1/0
2