xiaomupeng2009 Posted April 9, 2011 Share Posted April 9, 2011 when PMAC2'S digital current loop is used, is it to say that the current loop is closed in the pmac？if it is like that,so what the driver will do ? the driver will not close any loop!!!thank you ? Link to comment Share on other sites More sharing options...
Sina.Sattari Posted April 11, 2011 Share Posted April 11, 2011 Hi xiaomupeng2009, When Direct PWM control is used, the amplifier becomes a power block with current sensors. The power block is commanded by 3 PWM signals from PMAC and the ADCs are read back to PMAC for closing the current loop. However amplifier logic circuitry can use the ADC data and other sensors for protecting the amplifier/motor from damage in case of any errors. Link to comment Share on other sites More sharing options...
Recommended Posts