R911255575 (MDD090C-N-030-N2M-110PA0)

What installation tolerances are critical when mounting the MDD090C-N-030-N2M-110PA0 by Bosch Rexroth Indramat?

Even slight radial or angular misalignment beyond a few hundred micrometers can cause bearing stress and vibration; ensure the centering diameter (110 mm) is accurately referenced and coupling alignment is within spec to preserve motor life.

How does the integrated multiturn absolute encoder interact with homing or power interruptions?

The encoder stores absolute rotor position across power cycles, reducing or eliminating the need for separate homing routines after restart. This stability shortens commissioning and downtime in closed-loop applications.

What are the thermal limits and derating behavior of this motor?

The motor’s rated ambient limit is ~45 °C, beyond which the controller may need to derate torque or current; at ~55 °C in derated mode, safe continuous operation is still possible per vendor datasheets.

How critical is the keyway shaft in torque transmission and what coupling considerations arise?

The keyway ensures positive, backlash-free torque transfer, but you must size the key and coupling to avoid local stress concentrations; avoid shock loads or misaligned coupling that could shear the key or damage the shaft.

What practical benefits and constraints come from using Digital Servo Feedback (DSF)?

DSF yields very high-resolution, real-time position/velocity feedback, enabling tighter loop gains and better disturbance rejection; but the drive/controller must support the DSF protocol and handle its data rate and initialization requirements.

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mdd090c-n-030-n2m-110pa0

The MDD090C-N-030-N2M-110PA0 by Bosch Rexroth Indramat is a synchronous motor designed for digital drive controllers. It features a nominal speed of 3000 min⁻¹, 10.4 Nm torque at standstill, and an integrated multiturn absolute encoder for precise motion control. This motor is ideal for use in robotics, automotive assembly, and packaging machinery.