Mitsubishi Electric MELSERVO-J2 Series Instruction Manual page 253

14. OPTIONS AND AUXILIARY EQUIPMENT
(c) Techniques for noises radiated by the servo amplifier that cause peripheral devices 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 and output circuits), those induced
electromagnetically or statically by the signal cables of the peripheral devices located near the
main circuit cables, and those transmitted through the power supply cables.
Noises produced
by servo amplifier
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Noises transmitted
in the air
Magnetic induction
noise
Static induction
noise
Noises transmitted
through electric
channels
7)
Instrument Receiver
search engine
Noise radiated directly
from servo amplifier
Noise radiated from the
power supply cable
Noise radiated from
servo motor cable
Routes 4) and 5)
Route 6)
Noise transmitted through
power supply cable
Noise sneaking from
grounding cable due to
leakage current
5)
7)
2)
1)
Servo
amplifier
3)
6)
4)
Servo motor SM
14 - 26
Route 1)
Route 2)
Route 3)
Route 7)
Route 8)
7)
Sensor
power
supply
2)
8)
Sensor
3)