D-2 ProgrammingAC890PX Frame MProgramming with Block DiagramsYou can program the drive to your specific application. This programming simply involves changing parameter values. Forinstance, parameter S 1 selects the main method of motor control used by the drive: Volts/Hz or Sensorless Vector.Block diagram programming provides a visual method of planning the software to suit your application. The blocks describedhere are those blocks used by the Shipping Configuration(s) in the DSE 890 Configuration Tool. A typical block diagram asseen in the DSE 890 Configuration Tool is shown below.The processes performed by the shipping configuration are represented as a block diagram, consisting of function blocks andlinks: Each function block contains theparameters required for setting-up aparticular processing feature.Sometimes more than one instanceof a function block is provided for afeature, i.e. for multiple digitalinputs. Software links are used to connectthe function blocks. Each linktransfers the value of an outputparameter to an input parameter ofanother (or the same) function block.Each individual block is a processing feature,i.e. it takes the input parameter, processes theinformation, and makes the result available asone or more output parameters.