Product Description:

The MHP112C-024-HP3-BNNNNN is a synchronous servo motor supplied by Bosch Rexroth Indramat in the MHP Synchronous Motors series. It is intended for closed-loop positioning and speed regulation, converting controlled stator current into rotary torque for axes used in conveyors, presses, and metal-cutting machines in industrial automation cells. The motor is suited to applications that require repeatable starts, stops, and rapid speed changes, especially where the drive must hold position accurately between moves.

This model can accept a peak phase current of 83.7 A, enabling the windings to deliver short-term acceleration forces up to 148.0 Nm during brief demand spikes. At 20 °C, the torque constant is 2.37 Nm/A, so each ampere from the drive produces predictable shaft torque. A back-EMF value of 145.5 V/1000 rpm shows the voltage generated during rotation and helps match the motor to the DC bus of IndraDrive inverters at higher speeds. The phase inductance is 6.7 mH, which slows current rise and helps smooth PWM ripple during switching. At 20 °C, the phase resistance is 0.43 Ω, helping limit copper loss during continuous duty and supporting stable thermal behavior in the housing.

For static holding and emergency stops, an integrated brake supplies 70 Nm of holding torque, and its release circuit opens within 97 ms so the shaft can be freed quickly. The laminated rotor has an inertia of 273 × 10⁻⁴ kgm², which balances quick speed changes with steady operation when coupled to a load. Position feedback is provided by an optical encoder with 2048 lines, giving fine resolution for closed-loop control and accurate speed monitoring. The brake coil draws 1.29 A at 24 V DC, and after de-energization the friction pads separate in 53 ms so the axis can return to motion without a long delay before the next move begins.