The Ramp block can ensure the stability of a motor that is essential to a start up process. The block assists in the ramp and soak methods used to bring the motor up to full speed by directing the increase and hold time in RPMs during three defined stages:
In the first stage, the block ramps up to the Target 1 value based upon the increments specified in the Ramp Rate 1 field. When the Target 1 value is reached, the block continues to output the Target 1 value for the period specified in the Hold Time 1 field. After this period has expired, the block repeats the process for ramp stages 2 and 3.
NOTE: If a Ramp rate is 0.00, the stage is not executed.