The Allen-Bradley 1397-A025R is a digital regenerative drive with an EUA stock number of 4940. The product’s range is the Bulletin 1397 series. The 1397-A025R DC drive has other specifications which include 230V DC input power with an output of 18.5 kW, 93A Regen Ip00. Proper installation of the 1397-A025R drive requires the users to follow certain procedures for it to work properly. First, the monitor to be installed needs to be verified to check if it is in line with a level rating so that can it can work well with the 1397 drive module that it will be attached to. Follow the manufacturer’s instructions for better installation of the 1397-A025R DC drive.

To minimize unnecessary motor loading of the 1397-A025R, the user should make sure that the coupled applications exhibit a shaft alignment or a belt alignment with the driven machine. If the operators can access the motor while it is still running, they should make sure to install it according to all local and national machinery codes. The circuit monitor armature circuit conductors should then be sized according to the drive rating specifications and in alignment with the applicable codes. Lastly, to connect the 1397-A025R, find a way to locate and then connect the shunt field supply leads and the DC motor armature leads to the drive. All regenerative drives, including the 1397-A025R, require an inverting fault protection device that has been externally mounted and that is also connected to the armature circuit. Without this, loss of life, severe bodily injury, or machine damage could occur.