The 1397-B150R-HAP-L11 unit belongs to Allen-Bradley’s 1397 Digital Drive series. It is a DC Regenerative Drive that is ideal for delivering a voltage of 460 Volts AC. The HP rating for this DC Drive is 150 HP or 111 kW; it is a programmer only drive with an input/output expansion card. The standard communication protocol for the 1397-B150R-HAP-L11 DC drive is SCANPort, although its other communication options include Remote I/O, RS-232/422/485, DFI and DH485 Protocol, ControlNet, Ethernet/IP, Profibus DP, Modbus Plus, and LonWorks. The 1397-B150R-HAP-L11 drive comes with a digital speed regulator and a digital current regulator. This drive should not be located in an area that has dust, excessive vibrations or shocks, or excessive electromagnetic noise interference.

The 1397-B150R-HAP-L11 controls the DC motor using a speed and current regulator; this module it is capable of delivering an enhanced and regulated field supply and the enclosure of this DC drive provides the needed hardware and braking grids for the dynamic braking. A fused AC starter is also provided with this DC drive to control the three-phase blower motor. For controlling the 1397-B150R-HAP-L11 drive, the control devices such as the HIM, GPT, and DriveTools are used. These controlling operations can be done both by the keypad or remotely by using the terminals. With the help of the various start and stop modes, this DC drive makes the tasks easier and provides cost-energy efficient for the user. Various protective and safety features are also present in this drive.