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IS810N-INT Series Servo System User Manual (Brief)Chapter 4 Wiring
4.12.2 Using Noise Filter
To prevent interference from power cables and reduce impact of the servo drive on other 
sensitive devices, install a noise lter on the input side of the power supply according to 
the input current. In addition, install a noise lter on the power cable of peripheral devices if 
necessary. Observe the following precautions when installing and wiring the noise lter.
Do not put the input and output wires of the noise lter in the same duct or bundle them 
together.
Figure 4-31 Separation noise lter input and output cables
Separate the grounding wire and output power wires of the noise lter.
Figure 4-32 Separation of the noise lter grounding wire and output power wires
Use a separate grounding cable as short and thick as possible for the noise lter. Do not 
connect the grounding cable to other grounding devices.
Figure 4-33 Single point grounding
AC power supply
AC power supply
AC power supply
AC power supply
Noise 
lter
Noise 
lter
Noise 
lter
Noise 
lter
AC power supply
AC power supply
AC power supply
Noise 
lter
Noise 
lter
Noise 
lter
Noise 
lter
Noise 
lter
Noise 
lter
AC power supply
Noise 
lter
Noise 
lter
AC power supply
Noise 
lter
Noise 
lter
Noise 
lter
Noise 
lter
Noise 
lter
Noise 
lter
Servo 
drive
Servo 
drive
Servo 
drive
Servo 
drive
Shield grounding Shield grounding