TECO F510 series - Page 293

4-204
11- 02
Soft PWM Function Selection
Range
【0】:
Disable
【1】:
Soft PWM 1
【2】: Soft PWM 2
11-02=0: Soft -PWM control disabled.
11-02=1: Soft -PWM control enabled. Soft-PWM 1 control can reduce the ‘metal’ noise produced by the
motor, more comfortable for the human ear. At the same time, Soft-PWM also limits RFI noise to a
minimum level. The default setting of Soft-PWM control is disabled. When Soft-PWM 1 is enabled, the
maximum carrier frequency is limited to 8 kHz.
When 11-02=2 (Soft PWM 2 enables), users adjusts 2 Phase/ 3 Phase PWM Switch Frequency
(parameter 11-66), detection range at Soft PWM function 2 (parameter 11-67), and detecting start
frequency at Soft PWM function 2 (parameter 11-68) by the sensitivity to the sound.
11- 66
2 Phase/ 3 Phase PWM Switch Frequency
Range
【6.00~60.00】
When the inverter’s output frequency is higher than the setting value of parameter 11-66, the modulation
mode will be switched.
11- 67
Detection Range at Soft PWM Function 2
Range
【0~12000】
11- 68
Detecting Start Frequency at Soft PWM Function 2
Range
【6.00~60.00】
When the inverter’s output frequency is higher than the setting value of parameter 11-68, the inverter
starts the function of noise detection and it adjusts electromagnetic noise coming from the motor run upon
the setting value of parameter 11-67.
Note: When 11-02 = 2, the sum values of parameter 11-01 and parameter 11-67 can not be higher
than the inverter’s upper limit of carrier. For the inverter’s proper run, there is affecting mechanism
among these parameters (11-01, 11-02 and 11-67).
a) If the error occurs in setting value of parameter 11-01, it is because parameter 11-02=2 and
the setting value of parameter 11-01 + that of parameter 11-67 > upper limit of the inverter’s
carrier frequency. Thus, adjust the setting value of parameter 11-02 or that of parameter
11-67.
b) If the error occurs in setting value of parameter 11-67, it is because parameter 11-02=2 and
the setting value of parameter 11-01 + that of parameter 11-67 > upper limit of the inverter’s
carrier frequency. Thus, adjust the setting value of parameter 11-02 or that of parameter
11-01.
c) When 11-02=2, the error occurs in setting value of parameter 11-01 or parameter 11-67.
Please check the setting values of parameter 11-01 + that of parameter 11-67 > upper limit
of the inverter’s carrier frequency.
d) If the error occurs in setting parameter 11-02=2, it is because the setting value of parameter
11-01 + that of parameter 11-67 > upper limit of the inverter’s carrier frequency. Thus, adjust
the setting value of parameter 11-01 or that of parameter 11-67. Then set parameter 11-02
=2.