[Factory
setting] •....• 0
Setting value
Tone selection
0
No tone control
1
Tone control
• Tone modulation selection
ITIJ
(This parameter is a function numberfor the low-acoustic noiseseries)
The
tone
control
that
changes
the
motor
tone
can
be selected
with
the key
pad
.
• The tone control changes the motor noise from a metallic
tone to a composite sound
that
is easy to listen to.
o
When the tone control is selected. the motor tone will be
easy to listen to even with the same carrier frequency,
• The tone control is effective when the carrier frequency
is low.
•
PWM
carrier
frequency
IllJ
(This parameter is a function number for
the
low-acoustic noise series)
The PWM
carrier
frequency is 7.0 kHz
but
this
frequency can be
changed
with
Pro
72
if necessary in
relation
to
the
load or
motor
resonance
frequency.
(Note)
If
the
PWM
carrier
frequency is lowered,
the
motor
noise
wi
II increased,
but
the
noise
generated
from
the
inverter
and
the
leakage
current
will decrease.
(Refer
to
the
precautions
on
page
39 when
setting
the
PWM
carrier
frequency
to
a
higher
vefue.)
(Note)
This parameter can
be
read and written when the PWM mode Pr.10 setting is
"-
- -:",
(Factory
setting]
......
7.0kHz
-32-