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Mitsubishi Electric FR-A520-0.4K -55K Instruction Manual Page 47

Transistorized inverter, high function & low acoustic noise.
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Example of measures against noises
z
Install filter (FR-BLF,FR-
BSF01) to inverter input side.
Inverter power
supply
Install filter FR-BIF to
inverter input side.
Separate inverter and power line
30cm (11.81 inches) or more
(at least 10cm (3.94 inches))
from sensor circuit.
Control power
supply
Do not ground control box directly.
Do not ground control cable.
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INSTALLATION AND WIRING
Reduce carrier
Control box
frequency.
FR-
FR-
Inverter
BLF
BLF
FR-
BIF
Use twisted pair
shielded cable.
Power
supply for
sensor
Do not ground shield but connect
it to signal common cable.
36
Install filter (FR-BLF,FR-BSF01)
to inverter output side.
Motor
Use 4-core cable for motor
power cable and use one
cable as ground cable.
Sensor

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