+Example
of noise
countermeasures
Motor
Sensor
Use a s-ecre cable for the
motor power cable, and use
one wire for the grounding.
Install a filter (FR·BSFOl)
on the inverter
output
side.
Do not ground the shield,
but instead
connllGt
to the
common wire for the signals.
Use twisted pair shieldwires.
lower
carrier
frequency
Do not
dirllGtly
ground
to the control panel.
~~
:~t~~e~];e.9rOund
'-_"'-
-'tJ
Separate the inverter
unit",
....
_
power cables and sensor
circuit by
30cm
or more
(at
least
lDem).
Install a filter
(FR.BSFOl) on the
Power _ inverter input side.
supply-o
Install a fHur
(FR.
elF)
on the
inverter input side
Control
panel
-42-