Mitsubishi Electric FR-A520-0.4K-NA Instruction Manual page 46

Example of measures against noises
z
Install filter (FR-BLF,FR-
BSF01) to inverter input side.
Inverter power
supply
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.
Control box
FR-
BLF
Install filter FR-BIF to
FR-
inverter input side.
BIF
Power
supply for
sensor
INSTALLATION AND WIRING
Reduce carrier
frequency.
Install filter (FR-BLF,FR-BSF01)
to inverter output side.
FR-
Inverter
BLF
Use twisted pair
shielded cable.
Do not ground shield but connect
it to signal common cable.
36
Motor
Use 4-core cable for motor
power cable and use one
cable as ground cable.
Sensor