The Allen-Bradley MPL-B420P-SJ72AA permanent magnet rotary servo motor is part of the MP-Series low inertia servo motors. It has a 400-volt operating voltage and a 1.9-kilowatt rated power output. It has a 115 mm frame and weighs roughly 4.3 kilograms, or the equivalent of 9.4 pounds. The MPL-B420P-SJ72AA is suited for motion control applications needing low inertia. An encoder feedback system with single turn high-resolution allows the MPL-B420P-SJ72AA to run at 5000 rpm. It is 190.0 mm (7.48 inches) long and 140.1 mm (5.52 inches) tall. It has a shaft length of forty (40) millimeters (1.575 inches) and a diameter of 19.0 millimeters (0.748 inches). The MPL-B420P-SJ72AA operates between 0 °C and 40 °C (32 to 104 °F). Additionally, it should be stored in an area where the temperature remains between -30 °C and 70 °C (-22 to 158 °F).

To begin installing part number MPL-B420P-SJ72AA , the operator should first give enough clearance to keep the motor between 0 and 40 °C, or 32 to 104 °F. The axial and radial shaft loads must not be exceeded. The motor's connections must face downward. Sockets should be hand-tightened after that. Using the pilot hole for installation, the position of the motor on this machine is fixed, and tighten the bolts to 0.8 to 1.0 Nm (7 to 9 lb-in). To check the motor's electrical phasing, turn the shaft around, and encoder alignment. Install the O-rings on the threaded DIN cable plugs. Following that, install the O-rings on the SpeedTec DIN (M7) cable plugs. O-ring on feedback connection required for the highest environmental rating. The best way to keep liquids from getting near the motor is to make a drip loop. Make sure the plug has a tight collar on it by hand. Connect the cable plug and the connection gently. If the plug and connection do not fit together easily, realign the flat surfaces.