Allen Bradley 20BD011A0AYNAND

The 20BD011A0AYNAND is an adjustable speed drive designed and manufactured by Rockwell Automation/Allen-Bradley. The drive has a Horsepower rating of 7.5 Horsepower. The 20BD011A0AYNAND is made up of major components which include the gate interface board, the precharge board, the power interface board, the main control board, and the DC bus interface board. Additionally, the drive, as with other PowerFlex 700 drives, has 2 major fan components. One is for the heatsink and the other is for the capacitors. The power module of the 20BD011A0AYNAND has sub-components such as the converter power module (SCR), the inverter power module, and the SCR snubber kit. Also, the 20BD011A0AYNAND has 3 current transducers and thermal sensors for the main control panel and the heatsink. The drive has its voltage capped at 480 Volts AC supplied from a 3-phase power source.

The 20BD011A0AYNAND does not have a CE filter. The drive supports a standard control option for its inputs and outputs. As a safety precaution before installing the drive, the power to the drive should be switched off. Also when servicing the 20BD011A0AYNAND, note that the bus capacitors have power even when the power to the drive has been switched off. To avoid an electric shock, make sure the voltage in the bus capacitors has discharged completely. Note that cutting or disconnecting cables when the 20BD011A0AYNAND is still powered on and in operation can cause an electrical arc which, among other things, can cause an explosion and also send unintended signals to other devices causes unwanted machine operation.