MDD115D-N-020-N2L-130PA1
MDD Synchronous Motors
MDD115D-N-020-N2L-130PA1, Bosch Rexroth Indramat, MDD Synchronous Motors delivers precision motion control in a rugged industrial package. This motor combines a high-inertia design with a compact footprint, making it ideal for dynamic positioning tasks. The robust enclosure and standardized housing ensure reliable operation even in heavy-duty automation environments. With digital servo feedback integration, it meets stringent accuracy and repeatability requirements across the full operating envelope.
Built around a Motor Size 115 frame and a Centering Diameter 130 mm, the unit features Standard balancing to minimize vibration at high speeds. The Holding Brake with blocking brake provides an emergency stop torque of 45.0 Nm, while the Theoretical Maximum Torque 177.2 Nm supports high-load acceleration. The motor sustains its Nominal Speed 2000 min⁻¹ under continuous operation, drawing up to 77.0 A at standstill (boostable to 102.9 A with surface cooling). A precise Torque Constant at 20 °C of 0.74 Nm/A ensures consistent torque delivery per ampere, and the Digital servo feedback (DSF) interface streamlines connection to modern drive controllers.
Designed for seamless integration with digital drive controllers, the MDD115D-N-020-N2L-130PA1 features a connector-based Connection Type and a keyway shaft type for secure coupling. Its permissible ambient temperature range of 0 ... +45 °C and storage tolerance from -20 ... +80 °C guarantee suitability across varied plant conditions. Engineers benefit from minimal commissioning time and enhanced system uptime, making this synchronous motor a reliable cornerstone for demanding industrial automation applications.
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
45.0 Nm
Centering Diameter
130 mm
Housing
Standard
Motor Feedback
Digital servo feedback (DSF)
Motor Length Code
D
Motor Size
115
Nominal Speed
2000 min⁻¹
Shaft Type
keyway
Connection Type
Connector
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Continuous Current At Standstill
77.0 A (102.9 A with surface cooling)
Theoretical Maximum Torque
177.2 Nm
Permissible Storage And Transport Temperatures
-20 ... +80 °C
Torque Constant At 20 °c
0.74 Nm/A
Permissible Ambient Temperature
0 ... +45 °C
Frequently Asked Questions
What drive/feedback topology does the MDD115D-N-020-N2L-130PA1 use, and why does it matter?
It’s a synchronous servo for digital drive controllers with digital servo feedback (DSF) for enabling deterministic position/speed data and tight current loops. It improves contour accuracy, registration and repeatability under fast duty cycles.
How does the 45 Nm blocking brake on MDD115D-N-020-N2L-130PA1 function in safety and commissioning contexts?
The holding brake is a parking/retention device controlled by the drive, it is important to configured clamp immediately on E-stop or fault. It is not a dynamic working brake and shouldn’t absorb process energy.
How does the MDD115D-N-020-N2L-130PA1’s 2000 min⁻¹ nominal speed influence gearbox selection?
The 2000 rpm nominal speed can be sized to keep motor near its efficiency band while meeting load-side speed/torque. It is important to check application torque-speed curves against duty cycle and inertia.
What coupling/shaft details on MDD115D-N-020-N2L-130PA1 affect mechanical integration?
The keyway shaft provides positive torque transmission and anti-slip security under reversing loads. Its connectorized power/feedback simplifies routing and lowers commissioning time in multi-axis frames.
How does inertia matching for MDD115D-N-020-N2L-130PA1 influence servo stability in positioning axes?
The MDD115D’s higher rotor inertia aids disturbance rejection on belt/ball-screw stages. It aim for a load-to-motor inertia ratio that preserves bandwidth without exciting structural resonances.
Internal Product Review
Bosch Rexroth develops the motor MDD115D-N-020-N2L-130PA1 in a size-115 frame and Ø130 mm centering to a keyway shaft. It relies on DSF encoder for precise registration and it offers a nominal 2000 min⁻¹ rotational speed. This motor includes a 45 Nm blocking brake and features connectorized cabling for quick integration that makes it ideal for machine tools, robotics and textiles.
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