20AC5P0A0AYNANC0

The 20AC5P0A0AYNANC0 is a variable frequency controller from Allen-Bradley. With a voltage rating of 400 Volts AC, the drive can operate at a full power range of between 400 Volts AC and 528 Volts AC. The drive can be used with a motor that has a nominal voltage rating of 400 Volts AC. The 20AC5P0A0AYNANC0 belongs to the Rockwell Automation PowerFlex 70 variable frequency controllers. These series of controllers have an internal Proportional Integral (PI) function that provides proportional and integral control features to closed-loop processes. The major function of the proportional integral function is to provide a simple way to control processes by eliminating the need for control devices from the outside.

Additionally, with this function, the 20AC5P0A0AYNANC0’s processor can be instructed to just follow 1 process control loop. For the PI function to work, there has to be a setpoint recorded in the 20AC5P0A0AYNANC0. The PI function takes the drive’s process inputs which are variable and compares them to the setpoint. The function then adjusts the process inputs to match the setpoint. For this to happen, the 20AC5P0A0AYNANC0, as with other PowerFlex 70 drives, can operate in either the trim mode or in control mode. The difference between the 2 modes is that in a trim mode, the proportional Integral loop is summed with a master speed reference. On the other hand, in a control mode, the proportional integral loop supplies the whole speed reference. Note that the PI loop can be turned on or off. However, turning on the loop requires a running drive while the 20AC5P0A0AYNANC0 automatically disables the PI loop when ramping to a stop or jogging. The drive has a current rating of 5.0 Amps.