Pwm Carrier Frequency And Soft-Pwm Control - Mitsubishi Electric FR-A820-00046 Instruction Manual

Parameters
NOTES Pr. 77 "Parameter write selection", Pr. 160, Pr. 296 "Password lock level", Pr. 297 "Password lock/
unlock" and Pr. 991 "PU contrast adjustment" can always be read regardless of the user group set-
ting. (For Pr. 991, only when the FR-LU08 or the FR-PU07 is connected.)
Pr. 77, Pr. 160, Pr. 172 to Pr. 174, Pr. 296, and Pr. 297 cannot be registered in a user group.
When Pr. 174 is read, "9999" is always displayed. "9999" can be written, but it does not function.
Pr. 172 is disabled if set to a value other than "9999".
Parameters referred to
Pr. 15
Pr. 16
Pr. 77
Pr. 296
Pr. 297
Pr. 550
Pr. 551
Pr. 991
5.7.17

PWM carrier frequency and Soft-PWM control

The motor sound can be changed.
Pr.
72
E600
240
E601
260
E602
The setting range for the FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower.
The setting range for the FR-A820-03800(75K) or higher and FR-A840-02160(75K) and higher.
FR-A800
Jog frequency
Jog acceleration/deceleration time
Parameter write selection
Password lock level
Password lock/unlock
NET mode operation command source selection
PU mode operation command source selection
PU contrast adjustment
Name
PWM frequency selection
Soft-PWM operation
selection
PWM frequency automatic
switchover
Initial value Setting range
0 to 15
2
0 to 6, 25
0
1
1
0
1
1
(E) Environment setting parameters
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=> page 5-196
Description
The PWM carrier frequency can be
changed. The setting displayed is in
[kHz].
Note that 0 indicates 0.7 kHz, 15
indicates 14.5 kHz, and 25 indicates
2.5 kHz. (The setting value "25" is for
the sine wave filter.)
Soft-PWM disabled
The soft-PWM is enabled.
PWM carrier frequency automatic
reduction function disabled (for the
LD, ND, or HD rating)
PWM carrier frequency automatic
reduction function enabled
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