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Help CenterRexroth MSK030C-0900-NN-M1-UG1-NNNN (R911308684) – High-Performance IndraDyn S Servo Motor for Compact, Precise Motion
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Warranty: 365 days
Delivery: 1 week if in stock; no more than 1 month at the latest
Payment: 50% advance payment; full payment before delivery
Express options: FedEx, UPS, DHL
Compact MSK030 frame with C-length: Fits tight machine layouts while delivering quick response for light-to-medium duty axes.
0900 winding set: Optimized for dynamic performance with IndraDrive, balancing rated speed and torque for general automation tasks.
NN (no holding brake): Ideal for servo-driven applications where the drive’s torque hold or mechanical locking is sufficient.
M1 high‑resolution absolute feedback: Typically a Rexroth-supported absolute encoder for precise positioning and quick homing without external sensors.
UG1 shaft configuration: Commonly a keyed shaft with shaft sealing ring, supporting secure torque transfer and improved ingress protection.
Rugged IP protection: In many cases, MSK motors with shaft seal and sealed connectors achieve IP65 for industrial environments.
IndraDrive ready: Seamless with Rexroth IndraDrive controllers, minimizing commissioning time and ensuring reliable diagnostics.
Low cogging, smooth motion: Helps achieve stable velocity control in vision applications or precise dispensing where ripple shows up immediately.
| Brand / Model | Rexroth IndraDyn S / MSK030C-0900-NN-M1-UG1-NNNN (Material No. R911308684) |
| HS Code | 8501.51 (AC servo motor, output not exceeding 750 W – typical for MSK030 frame) |
| Power Requirements | Driven by Rexroth IndraDrive (3‑phase supply to drive; DC bus typically around 540 Vdc with 400 Vac mains). Motor phases U/V/W via standard power connector. |
| Dimensions & Weight | Frame size 030 (compact square flange), length code C; typically lightweight ( |
| Operating Temperature | 0…+40°C ambient (standard); operation up to +55°C usually possible with derating and proper cooling. |
| Signal I/O Types | 3‑phase power (U/V/W + PE); integrated absolute encoder (M1) via dedicated feedback connector; typically no brake (NN). |
| Communication Interfaces | Encoder feedback per M1 variant supported by Rexroth IndraDrive (commonly absolute feedback such as Hiperface/EnDat, depending on build). |
| Installation Method | IEC-style flange mounting; keyed shaft (UG1) for couplings/pulleys; rotatable power/feedback connectors for neat cable routing. |
| Protection | Industrial IP protection; with shaft seal configurations, IP65 is typical when correctly installed. |
You might notice that MSK030C shows up in places where dynamics trump size: fast pick‑and‑place gantries, labelers, form‑fill‑seal machines, compact conveyor indexing, and light rotary axes in printing or inspection systems. A medical device OEM told us they chose this exact frame to keep a small enclosure footprint while maintaining repeatable positioning for a dispensing head.
Reliability under continuous duty: The IndraDyn S platform is known for stable thermal behavior and long bearing life, even in high start/stop cycles.
Compatibility: Native fit with Rexroth IndraDrive simplifies wiring, parameter sets, and service tooling—typically saving hours on commissioning.
Footprint savings: High torque density allows downsizing the axis without sacrificing dynamics, which often cuts cabinet size and mechanical cost.
Predictable lifecycle cost: Genuine Rexroth parts, standard connectors, and widely available spares reduce downtime risks and firefighting later on.
Procurement clarity: Exact material number (R911308684) reduces mix-ups between similar MSK variants, especially when replacing legacy stock.
Mounting environment: Rigid IEC flange; keep alignment within coupling tolerances to avoid bearing stress. Use the keyed shaft (UG1) with matching hubs.
Cabinet/drive setup: Ensure adequate ventilation around the IndraDrive; follow Rexroth cable length specs and EMC grounding for power and feedback.
Wiring: Separate motor power and feedback cables; route away from high‑noise devices. Verify PE integrity and connector seals to maintain IP rating.
Safety: Lock out power before servicing. Because NN = no holding brake, consider mechanical safety measures for vertical axes.
Routine care: Check connectors for tightness and seal condition; keep the motor surface free of dust buildup; review drive firmware updates during scheduled service.
Commissioning tips: Load the correct motor data set for MSK030C-0900 in the drive. From my experience, an auto‑tune followed by fine velocity loop tweaks yields noticeably smoother profiles.
Certifications: CE compliant; UL recognition and RoHS conformity are typical for Rexroth MSK series.
Manufacturer warranty: Backed by our 365‑day warranty policy.
If you’re standardizing across multiple stations, the MSK030C format seems to be a safe choice—small, predictable, and easy to keep in stock. If you need the same motor with a holding brake or a different encoder, we can match the exact option codes to your drive list to avoid re‑engineering.
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