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The PWM input directly controls the PWM output. This gives the user direct control of the switching frequency and duty cycle. These drives have the fastest response rates in our entire product offering. These are the only AMC drives where the user must close the current loop.
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The PWM input goes into a PWM-to-Analog converter. The analog signal is then used as a command into the current loop. The result is a current mode drive controlled with a PWM and direction signal. These drives are equivalent to our standard analog input drives but with PWM & Direction command.
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Two TTL signals control these drives, one for PWM and the other for Direction. Since these drives don't take analog inputs for command the need for a D/A converter for drive control is eliminated.
Specs
