MDD090C-N-030-N2M-110GA0

MDD Synchronous Motors

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The MDD090C-N-030-N2M-110GA0 synchronous motor has a continuous torque at standstill of 10.4 Nm, an integrated multiturn absolute encoder, standard balancing, and a centering diameter of 110 mm, plus a plain shaft design. Part of the MDD Synchronous Motors series by Bosch Rexroth Indramat, it features digital servo feedback (DSF), a side A connector connection, standard housing, and a shaft seal.

Technical Specifications

Balancing
Standard

Holding Brake
Without blocking brake

Centering Diameter
110 mm

Housing
Standard

Encoder
Integrated multiturn absolute encoder

Motor feedback
Digital servo feedback (DSF)

Continuous Torque at Standstill
10.4 Nm

Motor Length Code
C

Motor Size
090

Nominal Speed
3000 min⁻¹

Shaft Seal
With shaft seal

Shaft Type
Plain shaft

Connection Direction
Side A

Connection Type
Connector

Product Type
Motor for digital drive controllers

Shaft End
Standard (without side B shaft end)

Frequently Asked Questions

Why might one choose “without blocking brake” for this motor?

Omitting the brake reduces cost, size, maintenance needs, and inertia, useful when external locking or fail-safe holds aren’t needed. But you lose automatic mechanical hold when power is off, so a brake may be added externally if required.

In robotics or print applications, how does motor inertia affect performance?

Lower rotor inertia enables faster acceleration and deceleration, improving responsiveness and reducing overshoot; higher inertia smooths motion but slows dynamics. Matching motor inertia to the load inertia (ideally a 1:1 to 3:1 ratio) yields optimal control stability.

How do thermal limits or ambient conditions affect continuous torque output?

If ambient temperature exceeds nominal or elevation is high, the motor’s cooling capacity decreases, forcing derating of torque to prevent overheating. The motor must be derated or supplemented with better cooling at extreme conditions.

How does digital servo feedback (DSF) interface with modern drive controllers?

DSF typically communicates via a serial/digital protocol (e.g. BiSS, Hiperface, or proprietary Rexroth interface), enabling high-speed position/velocity/diagnostic exchange. The drive must support compatible feedback protocol to fully exploit the motor’s features.

For Bosch Rexroth MDD090C-N-030-N2M-110GA0, what should be considered about mechanical resonance frequencies?

You must avoid excited mechanical resonances in your machine’s structure near the motor’s operating frequencies (especially at low orders) by checking structural modes and applying notch filters if needed. Closed-loop tuning should include identification of resonance peaks to suppress oscillations.

Common Misspellings

Internal Product Review

The MDD090C-N-030-N2M-110GA0 motor from Bosch Rexroth comes with a 110 mm centering diameter, plain shaft with seal, and integrated multiturn absolute encoder. It delivers 10.4 Nm continuous torque at standstill with a nominal speed of 3000 min⁻¹ for reliable servo control. This motor is widely used in packaging lines, robotics, and printing machinery requiring accurate digital drive integration.