2-23
D Installing a Noise Filter on the Output Side
Connect
a Noise Filter to the output side of the Inverter to reduce radio noise and
induc
-
tion noise.
Power
supply
3G3JV
SYSDRIVE
3G3IV-PLF
Noise
Filter
Signal line
Induction noise Radio noise
Controller
AM radio
Induction Noise: Electromagnetic
induction generates noise
on the signal line, caus
-
ing the controller to malfunction.
Radio Noise: Electromagnetic waves from the Inverter and cables cause the
broadcasting radio receiver to make noise.
D Countermeasures against Induction Noise
As
described previously
, a Noise Filter can be used to prevent induction noise from be
-
ing generated on the output side. Alternatively, cables can be routed through a
grounded
metal pipe to prevent induction noise. Keeping the metal
pipe at least 30 cm
away from the signal line considerably reduces induction noise.
Power supply
3G3JV
SYSDRIVE
Metal pipe
30 cm min.
Signal line
Controller
Design Chapter
2
To Next Page
Loading...
