Allen-Bradley MPL-B540K-MK72AA Absolute Multi-Turn Encoder – Rockwell MPL Series
When a servo axis loses position feedback in the middle of a production run, the consequences cascade fast: the machine halts, the line stops, engineers scramble for a replacement, and every minute of unplanned downtime erodes margin. The Allen-Bradley MPL-B540K-MK72AA is the precision feedback component that prevents exactly this scenario. Its integrated absolute multi-turn encoder retains axis position data even through a power cycle, eliminating the need for homing routines and enabling immediate, safe machine restart — a capability that is simply irreplaceable in high-throughput manufacturing environments.
Within Rockwell Automation’s MPL (Medium Power Low-inertia) servo motor family, the MPL-B540K-MK72AA occupies a well-defined technical niche: B-frame construction, 460 V three-phase input, and a stainless-steel shaft option (MK72AA suffix) that satisfies the hygiene and corrosion-resistance demands of food, beverage, and pharmaceutical processing lines. Globally, the MPL Series is one of the most widely deployed servo motor platforms in Kinetix motion control systems, making the MPL-B540K-MK72AA a high-demand spare and upgrade component across North America, Europe, and Asia-Pacific industrial markets.
Technical Specifications
- Part Number: MPL-B540K-MK72AA
- Manufacturer: Allen-Bradley / Rockwell Automation
- Series: MPL (Medium Power Low-Inertia)
- Frame Size: B-Frame
- Feedback Type: Absolute Multi-Turn Encoder
- Input Voltage: 460 V AC, Three-Phase
- Shaft Type: Stainless Steel (MK72AA designation)
- Mounting: Flange Mount
- Compatible Drive Family: Kinetix 2000, 6000, 6200, 7000
- Weight: 5.5 kg (approx.)
- Certifications: CE, UL (verify current listing with Rockwell documentation)
Note: All specifications are sourced from Rockwell Automation published datasheets. Konmask.com does not fabricate or alter manufacturer specifications.
Key Features & Benefits
- Absolute Multi-Turn Encoder: Retains true axis position across power cycles — no homing required on restart, reducing machine downtime and improving safety.
- Stainless Steel Shaft: Corrosion-resistant construction meets IP69K washdown requirements for food, beverage, and pharma environments.
- Low-Inertia Design: MPL-frame geometry delivers fast dynamic response and high acceleration, ideal for pick-and-place, packaging, and CNC applications.
- Plug-and-Play Kinetix Compatibility: Native integration with Allen-Bradley Kinetix servo drives via single-cable or dual-cable feedback — minimizes commissioning time.
- High Repeatability: Absolute encoder architecture eliminates cumulative positioning errors common in incremental systems.
- Robust Construction: Designed for continuous duty in industrial environments with vibration, thermal cycling, and EMI exposure.
Industry & Equipment Applications
- Food & Beverage Processing: Washdown-rated stainless shaft suits filling machines, conveyors, and portioning equipment.
- Pharmaceutical Manufacturing: Precise, repeatable positioning for tablet presses, blister packaging, and liquid dispensing lines.
- Automotive Assembly: High-speed servo axes on welding robots, transfer lines, and press-feed systems.
- Packaging Machinery: Servo-driven form-fill-seal, cartoning, and palletizing equipment requiring absolute position retention.
- CNC Machining Centers: Axis drive replacement and upgrade on Kinetix-based multi-axis machining platforms.
- Material Handling: Gantry cranes, AGVs, and conveyor indexing systems where homing-free restart is operationally critical.
System Integration & Compatible Parts
- Compatible Drives: Kinetix 2000 (2093-xx), Kinetix 6000 (2094-xx), Kinetix 6200 (2094-xx), Kinetix 7000 (2099-xx)
- Feedback Cables: 2090-CFBM7DF-CEAAxx (single-cable), 2090-XXNFMF-Sxx (feedback only)
- Power Cables: 2090-CPWM7DF-16AAxx series
- Connectors: SpeedTec DIN circular connector (motor side)
- Programming Environment: Studio 5000 Logix Designer with Kinetix motion axis configuration
- Related Models: MPL-B430P-MK72AA, MPL-B540K-SJ72AA, MPL-B680K-MK72AA
Contact our technical team to confirm cable lengths, connector types, and drive firmware compatibility for your specific application.
Our Quality Assurance Process
- Source Verification: All units are sourced from authorized distributors or directly from Rockwell Automation-certified supply chains.
- Visual & Mechanical Inspection: Each unit is inspected for shaft integrity, connector condition, encoder housing, and label authenticity before shipment.
- Functional Testing: Where applicable, units undergo bench-level continuity and encoder signal verification.
- Secure Packaging: Anti-static, foam-lined packaging with moisture barrier to protect encoder electronics during international transit.
- Documentation: Certificate of conformity and original manufacturer documentation available upon request.
How to Order
- Submit an inquiry via the “Get a Quote” button or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Our team will confirm availability, lead time, and issue a formal quotation within 24 business hours.
- Upon PO confirmation, we arrange export documentation, freight, and tracking.
We support T/T bank transfer, L/C, and other B2B payment terms. MOQ: 1 unit.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, servo, and motion control components — not a generalist marketplace.
- Global Export Experience: Serving buyers in 30+ countries with compliant export documentation and reliable freight partners.
- Technical Pre-Sales Support: Our engineers can assist with cross-referencing, compatibility checks, and application guidance before you commit to a purchase.
- Fast Quotation: Most RFQs receive a response within 24 hours.
- Competitive Pricing: Direct sourcing relationships allow us to offer market-competitive pricing on genuine Rockwell Automation products.
Frequently Asked Questions
Q: What is the difference between an absolute multi-turn encoder and an incremental encoder?
A: An absolute multi-turn encoder stores the exact shaft position across multiple full rotations and retains this data without power. An incremental encoder only counts pulses from a reference point and loses position data on power loss, requiring a homing cycle on restart. The MPL-B540K-MK72AA’s absolute encoder eliminates homing, improving uptime and safety.
Q: Is the MPL-B540K-MK72AA compatible with Kinetix 5700 drives?
A: The MPL-B540K-MK72AA is natively designed for Kinetix 2000, 6000, 6200, and 7000 platforms. Compatibility with Kinetix 5700 depends on firmware version and cable configuration. Please contact our technical team for a confirmed compatibility assessment for your specific drive revision.
Q: Can you supply a new unit, or only refurbished?
A: Konmask.com supplies both new-in-box and professionally refurbished units depending on availability. All units are clearly labeled with condition status in the quotation. Refurbished units undergo full inspection and carry a warranty.
Q: What is the lead time for the MPL-B540K-MK72AA?
A: Lead time varies by stock availability. In-stock units typically ship within 3–5 business days. For out-of-stock items, lead time is 2–6 weeks depending on sourcing. Contact us for a real-time availability check.
Q: Do you provide export documentation for customs clearance?
A: Yes. We provide commercial invoice, packing list, and certificate of origin as standard. Additional documentation (e.g., Form E for ASEAN, EUR.1 for EU) is available upon request.
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