Digital Speed Control Potentiometer, Panel Mount, 1/8 DIN, 120/240VAC Supply voltage, 3 Wire Output To Any Drive's Speed Pot Circuit, Closed Loop for Start/Stop or Applications Requiring Rapid Drive Response Time, Output Compatible with 1K

Our Dart ASP40 series are digital closed-loop speed potentiometers. They are a variable speed motor control accessory used with conventional AC, DC or Brushless DC drives regardless of brand or HP rating. The -51 (ASP40-51) option provides support for RS232/485 serial communication to adjust speed and other parameters automatically from a plc or SCADA supervisory control system. Most AC and DC drives come from the factory configured to run in a single, open loop mode. Many drive applications require some sort of speed change in proportion to a reference. Mixing and blending applications may require two or more motors to run in proportion to a master reference. The ASP40 adds this capability to any drive that has a potentiometer or voltage follower input for set speed. Target speeds are displayed directly in RPM, FPM, GPM; process time, ratio, or any other engineering unit of measure. Front-panel access allows factory or field programming of the ASP40 to the exact configuration needed for each application; maximum and minimum set-points, decimal points or colons, operating mode (Master, Time or Ratio), and math functions to accommodate motor gear ratios. The ASP40 is simple to operate...Just set the desired rate, ratio, or time in the large 1/2 inch LED display one digit at a time, or fast sweep. The ASP40 helps motor loops overcome line voltage variation, load changes and other factors that make open loop systems less repeatable.