MDD090C-N-020-N2L-110PR0
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD090C-N-020-N2L-110PR0 servo motor is a high-performance member of the MDD Synchronous Motors series, engineered for precision motion control in digital drive systems. This rugged Digital AC Servo Motor utilizes a permanent-magnet rotor and a built-in encoder for commutation, rotor position, and speed feedback. The robust design delivers reliable continuous operation with a Continuous Torque at Standstill of 10.4 Nm and supports dynamic acceleration profiles at its Nominal Speed of 2000 min⁻¹. Engineered without a blocking brake, this model prioritizes compactness and efficiency in demanding automation environments. Designed for digital controllers, it offers seamless integration with drive electronics via a standardized connector interface.
The motor’s key dimensional and mechanical parameters include a Motor Size of 090 and a Motor Length Code C, resulting in a moderate footprint optimized for machine tool spindles and robotics. It features a precision-aligned Centering Diameter of 110 mm and a Standard (without side B) Shaft End driven by a keyed shaft per DIN 6885 sh.1, 8-68 Edition to ensure reliable torque transmission. The housing is configured in a Standard format, with Balancing: Standard to minimize vibration at high speeds. Sealing elements include a Shaft Seal to protect internal components against dust and debris. Connection is achieved through a right-hand Connector mounted on the housing’s Connection Direction: Right flange. Motor feedback is handled by Bosch Rexroth’s proprietary Digital Servo Feedback (DSF) system, eliminating the need for external encoders.
In operation, the MDD090C-N-020-N2L-110PR0 delivers consistent performance across varying load conditions. The integrated encoder supports high-resolution commutation, enabling precise speed regulation and position control with minimal latency. Continuous torque of 10.4 Nm at standstill ensures secure holding capability in indexing applications without supplemental brakes. Thermal stability is enhanced by the motor’s design, allowing uninterrupted operation at rated current levels. The keyed shaft interface prevents slippage under peak torque loads, and the standard balancing reduces resonant vibration, extending bearing life and maintaining accuracy.
System integration is straightforward thanks to compatibility with Bosch Rexroth Indramat digital drive controllers, including built-in diagnostics and real-time feedback loops. The motor’s compact MDD Series Digital AC Servo Motor architecture reduces cabinet space and simplifies wiring through standardized connectors. Target applications include CNC machine tools, industrial robots, packaging machinery, and automated assembly lines, where precise torque control, high dynamic response, and reliable digital communication are critical. This combination of specifications makes the MDD090C-N-020-N2L-110PR0 an ideal solution for advanced automation systems requiring tight control over speed and position.
Technical Specifications
Balancing
Standard
Holding Brake
Without blocking brake
Centering Diameter
110 mm
Housing
Standard
Motor Feedback
Digital servo feedback (DSF)
Continuous Torque at Standstill
10.4 Nm
Motor Length Code
C
Motor Size
090
Nominal Speed
2000 min⁻¹
Shaft Seal
With shaft seal
Shaft Type
keyway
Connection Direction
Right
Connection Type
Connector
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
How does the keyway shaft and shaft sealing system affect reliability in demanding applications for MDD090C‑N‑020‑N2L‑110PR0 motor?
The keyway ensures secure torque transmission with minimal slippage, essential under high acceleration or shock loads. The shaft seal protects internal mechanics from dust and contaminants, preserving lubrication and reducing maintenance needs.
What are the cooling considerations for long duty cycles in motors like MDD090C‑N‑020‑N2L‑110PR0 motor?
The natural convection and surface cooling support continuous operation but limit overload duration. For heavy duty or high ambient temperature, you may need forced cooling or duty cycle management to prevent thermal buildup beyond its 60‑minute thermal time constant.
How does standard balancing influence vibration and life in the MDD090C‑N‑020‑N2L‑110PR0 motor?
The standard balancing ensures rotor mass is distributed to limit mechanical vibration at nominal speed. Reduced vibration lowers bearing wear and enhances positional repeatability, especially in high‑speed or precision movement scenarios.
How does winding inductance (~ 6.8 mH) influence current control and drive tuning on the MDD090C‑N‑020‑N2L‑110PR0 motor?
The inductance slows current changes, impacting responsiveness and causing phase lag in the current loop. Proper drive tuning (current loop gains) must account for this to avoid overshoot or oscillations.
Why is the torque constant ~ 0.86 Nm/A important for the MDD090C‑N‑020‑N2L‑110PR0 when handling variable loads?
The torque constant defines how much torque you get per ampere of current, which helps in sizing the drive supply and ensuring that transient loads don't exceed thermal limits. For this model it ensures predictable response in current‑based torque control.
Common Misspellings
MDD-090C-N-020-N2L-110PR0
MDD090C N 020 N2L 110PR0
MDD090C-N-020-N2L-110-PR0
MDD090C-N-020-N2L-110-PRO
MDD090C-N-020-N2L-110PRO
MDD090CN020N2L110PR0
MDD90C-N-020-N2L-110PR0
MDDO90C-N-020-N2L-110PR0
MDDO9OC-N-O2O-N2L-11OPRO
Internal Product Review
The MDD090C‑N‑020‑N2L‑110PR0 Synchronous Motor excels in demanding automation with a rotor inertia of 0.0053 kg·m² and a torque constant of 0.86 Nm/A, enabling stable torque delivery under fluctuating loads. Its IP65 protection supports deployment in dusty or wet environments. With standard shaft balancing, it ensures reduced vibration, extending bearing life in high-speed cycles.
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We offer a repair service for the MDD090C-N-020-N2L-110PR0.
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