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12) Monitoring during a patterned run
Use the following procedure to monitor a patterned run.
[Operating procedure]
Example
Action
operation
A run frequency is displayed
1)1 NEXT
I
Displays the current pattern number
-
I
2)
I
NEXT
I
Displays the balance of current run pattern
3)
I
NEXT
I
Displays current forward/reverse status.
In n
IU.U
: Pt.1
: 12.3
: F
or :
r
Repeated pressing of the NEXT key allows you to monitor all items of the
inverter's status information. The items appear in the sequence listed in
Table 3.2 of Section 3.3.1.
3.22 PWM carrier frequency switching [ [F ]
The level or tone of acoustic motor noise can be modified by adjusting the inverter's PWM carrier
frequency. When the noise level caused by resonance between teh motor and a load machine or
a motor's fan cover, adjusting the PWM carrier frequency often will lower the level of acoustic
noise.
The PWM carrier frequency (in a low speed region) [ [F ] can be set within a range of from O.5Hz
jo 3kHz.
*
For details of the setting procedure, refer to section 3.1.2 (page
23). Its function number is 6.
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