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PWM Generator Settings

Frequency

Hz

0

Defines the frequency of the carrier signal that is used to generate PWM.

Duty Cycle

%

0%

Fraction of one period for which the PWM signal is active, as a percentage. Changing this value will update the default value of the Duty Cycle channel that corresponds to the selected PWM generator. 

Dead Time

Seconds

0s

Time during which both the PWM signal and its complementary are held in an inactive state, immediately before the PWM signal goes active.

Phase Shift

Degrees

0 deg

Phase offset of the generated PWM relative to the other PWMs using the same frequency engine. 

Polarity

High

The polarity of the signal. 

• Active High - Outputs a HIGH voltage when the signal is True and a LOW voltage when the signal is False. 

• Active Low - Outputs a HIGH voltage when the signal is False and a LOW voltage when the signal is True.

Wave Mode

Asymmetric

Defines the location of the signal pulse within the PWM period. 

• Symmetric - The pulse is centered within the PWM period. 

• Asymmetric - The rising edge of the pulse is aligned with beginning of the PWM period. 

Update Moment

Beginning

Defines when the Duty Cycle is updated to a commanded value.

• Beginning - The PWM duty cycle is updated to a new value at the beginning of the PWM period.

• Middle - The PWM duty cycle is updated to a new value and the middle of the PWM period.

• Both - The PWM duty cycle is updated to a new value at the beginning and middle of the PWM period.

PWM Generator X

Duty Cycle

Input

%

0%

Fraction of one period for which the PWM signal is active, as a percentage

PWM Reset

PWM Reset

Input

0 (False)

• False - Normal operation

• True - Resets all PWMs