Special Functions; Pulse Width Modulation - BONFIGLIOLI Agile Operating Instructions Manual

Operation mode real-time
1520
tuning
0 - Off
1 - On
3 - Latching
5 - Taking Over
Latching and Taking
7 -
Over
7.10

Special functions

The configurable functions of the corresponding control methods enable another field of application of
the frequency inverters. The integration in the application is made easier by special functions.

7.10.1 Pulse width modulation

400 Switching Frequency
The motor noises can be reduced by changing over the parameter
duction of the switching frequency should be up to a maximum ration of 1:10 to the frequency of the
output signal for a sine-shaped output signal. The maximum possible switching frequency depends on
the drive output and the ambient conditions. For the required technical data refer to the correspond-
ing table and the device type diagrams.
Parameters
No. Description
400 Switching Frequency
The factory setting of parameter
30.
figuration
401 Min. Switching Frequency
The heat losses increase proportionally to the load point of the frequency inverter and the switching
frequency. The automatic reduction adjusts the switching frequency to the current operating state of
the frequency inverter in order to provide the output performance required for the drive task at the
greatest possible dynamics and a low noise level.
The switching frequency is adapted between the limits which can be set with the parameters
400 and
ing Frequency
er than or equal to the
Switching Frequency
Parameters
No. Description
401 Min. Switching Frequency
Agile
Operating Instructions
Real-time tuning is switched off. The controller settings and motor
parameters are not changed during operation. Factory setting.
Real-time tuning is switched on. After shut-down or restart of the
frequency inverter or after a data set changeover, the changed
controller parameters are deleted again and replaced by the static
values. The static values contain the motor data measured during
commissioning (setup).
Real-time tuning is switched on. Optimized control parameters are
saved after shut-down of the frequency inverter (non-volatile).
Each data set is saved separately. In this way, real-time tuning
may also be used for operating cases with motor changeover.
Real-time tuning is switched on. Optimized control parameters are
not saved after shut-down or restart of the frequency inverter.
Optimized controller settings are applied in a new data set after a
data set changeover.
Combination of "Latching" and "Taking Over". Real-time tuning is
switched on. Optimized control parameters are saved after shut-
down or restart of the frequency inverter (non-volatile). Optimized
controller settings are applied in a new data set after a data set
changeover.
30
Configuration
Selection
110
410, 610
Switching Frequency
Min. Switching Frequency
400, the automatic reduction is deactivated.
Min.
2 kHz
06/2013
Function
Switching Frequency
Setting
Min. Max.
2 kHz
16 kHz
4 kHz
400 depends on the setting of parameter
401. If the
Min. Switching Frequency
Setting
Max.
16 kHz
240
Parameter descriptions
400. A re-
Fact. sett.
2 kHz
4 kHz
Con-
Switch-
401 is larg-
Fact. sett.
2 kHz
Special functions