Mitsubishi Electric MELSERVO-J5 User Manual page 242

■Techniques for noises radiated by the servo amplifier that cause peripheral equipment to
malfunction
Noises produced by the servo amplifier are classified into those radiated from the cables connected to the servo amplifier and
its main circuits (input/output), those induced electromagnetically or statically by the signal cables of the peripheral equipment
located near the main circuit cables, and those transmitted through the power supply cables.
Noise generated
by servo amplifier
(7)
Receiver
Instrument
6 OPTIONS AND PERIPHERAL EQUIPMENT
240
6.14 Noise reduction techniques
Noises transmitted
Noise radiated directly from servo amplifier
in the air
Noise radiated from the power cable
Noise radiated from servo motor cable
Magnetic induction
Routes (4) and (5)
noise
Static induction
Route (6)
noise
Noise transmitted
Noise transmitted through power cable
through electric channels
Noise sneaking from grounding cable due to leakage current
(5)
(7)
(2)
(1)
Servo
amplifier
(3)
(4)
M
Servo motor
(7)
Sensor
power supply
(2)
(8)
Sensor
(6)
(3)
Route (1)
Route (2)
Route (3)
Route (7)
Route (8)