Schneider Electric BSH0702P31A2A – Compact 70 mm Lexium servo motor for precise, high‑response motion

The Schneider Electric BSH0702P31A2A belongs to the Lexium BSH family of brushless AC servo motors. From my experience, this 70 mm frame model is a sweet spot when you need quick acceleration and tight position control in a compact footprint—typical on pick‑and‑place heads, indexing tables, form-fill-seal lines, and small gantries. One thing I appreciate is how easily it drops into existing Lexium architectures (LXM32/LXM62 drives), keeping commissioning fast and predictable.

Our Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: Typically 1 week if in stock; no more than one month at the latest
• Payment Terms: 50% advance payment; full payment prior to delivery
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Key Features

• 70 mm IEC flange size – Fits tight machine spaces while maintaining a rigid mounting interface.
• High dynamic response – Low-inertia rotor design typically enables fast start/stop profiles and short cycle times.
• Precision feedback – Factory-integrated encoder feedback for smooth low-speed control and accurate positioning.
• IP65-rated housing – In most cases, sealed against dust and low-pressure water jets when properly cabled and shaft-sealed.
• Lexium drive compatibility – Pairs with LXM32/LXM62 drives; you might notice commissioning is straightforward with pre-defined motor data.
• Thermal protection built in – Integrated temperature sensing helps the drive protect the motor against overheating.
• Flexible cabling options – Power, feedback, and (if equipped) brake connectors designed for quick replacement and tidy routing.

Technical Specifications

Application Fields

This model is commonly used in:

• Packaging machinery – form-fill-seal, labeling, cartoning where fast indexing is needed.
• Electronics assembly – pick-and-place axes, screwdriving, small conveyors.
• Light machine tooling – auxiliary rotary axes, feeders, positioning tables.
• Material handling – compact gantries and vertical axes (with brake-equipped variants).
• Printing and converting – tension control and registration tasks that benefit from smooth low-speed torque.

One integrator told us the BSH 070 frame “seems to be the safest bet when we need more speed than a stepper, but don’t have cabinet space for a bigger motor.” That sums up the use case quite well.

Advantages & Value

• Reliability – Robust bearings and IP65 sealing reduce unplanned downtime in most shop-floor environments.
• Compatibility – Pre-validated with Lexium drives; typically no guesswork on motor tuning data.
• Lifecycle cost – Efficient synchronous design and good thermal behavior help reduce heat, which often translates to longer life.
• Serviceability – Standardized connectors and cable sets make swaps quick if you’re running multiple shifts.
• Scalability – Same family offers larger/smaller frames, so you can standardize across machine sizes.

Installation & Maintenance

• Mounting – Use the 70 mm flange with proper doweling for rigidity. Align carefully to avoid shaft/bearing load.
• Environment – 0…40 °C ambient is typical. Provide airflow around the motor; avoid covering the housing fins.
• Wiring – Use Schneider shielded power and feedback cables. Ground the motor frame and maintain shield continuity to the drive.
• Vertical axes – If the sub‑variant has a holding brake, power it with 24 V DC from a safe source and verify brake release timing in the drive.
• Safety – Lock out power before handling connectors. Verify insulation resistance if the motor has been stored long-term.
• Routine checks – Inspect connectors and seals periodically, clean dust/oil residue, and check for unusual vibration or noise.
• Drive firmware – Keep the Lexium drive firmware and motor files up to date; it typically improves diagnostics and motion performance.

Quality & Certifications

• CE compliant; RoHS conform
• UL/CSA recognition for many BSH variants (check label for exact listing on this code)
• Manufactured under ISO 9001 quality systems
• Manufacturer’s warranty: 12 months (365 days)

Recommended Supporting Components

• Lexium LXM32 or LXM62 servo drives sized to the “P” winding current.
• Schneider Electric power and feedback cable sets (VW3M… series) matched to connector orientation/length.
• Planetary gearboxes for 70 mm flange motors when higher torque at lower speed is required.