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22. PARAMETERS
R . 8 6
-
Pr.63
~nput ~ l t r
w
COrUtlnt
Allows the setting of the built-in filter time constant for the external voiiage or current frequency
0
Increases the filter time constant if stable operation cannot be performed due to noise. A larger
setting signal input sectin. Effective for eliminating ndse in the frequency setting circuit.
set value resutts in lower response.
T o m c o n b d ~ o n
It is possible to control the motor output tone
according to the setting of Pr.61.
*The
tone control function automatically controls the carrier frequency to change metallic motor
.The
tone control function is
more
effective for lower carrier frequency.
noise to synthesized tone which is solter to environment.
Use this function as a measure to reduce motor noise while restricting electrical noise and leak
current.
Note:
This function cannot
be
used if the setting for Pr.72 (PWM carrier frequency) is larger
than 10
kHz.
Though setting over 10 kHz is possible, tone control will not be available.
open motor arcun & t e c h level
[Prs31
Open motor
ctrdt
detection
tlme
A signal is output if the inverter's output current drops below the Pr.62
set
value during inverter
operation. The zero current detection signal (OMD) is assigned to
t h e
output tenninals with Pr.40.
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