Lenze M85AS140S325SFALC 16085830 m850 Synchronous Servo Motor
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Product Information
The Lenze M85AS140S325SFALC, designated by model number 16085830, is a high-dynamic permanent-magnet synchronous servo motor from the m850 family. Constructed in a size 140 frame with a short stack length, this compact m850-S140 unit is engineered to deliver high dynamic performance in automated machinery with demanding load-to-motor inertia ratios. Operating at a rated speed of 3,250 RPM, the motor utilizes self-ventilated natural convection cooling and features an IP65 ingress protection rating to withstand harsh industrial environments. An integrated holding brake is built into the motor assembly to maintain axis position during power loss or emergency stopping conditions.
Electrical interconnections on the unit are made using quick-connect SpeedTec circular connectors for feedback signals and power supply, with power wiring also adaptable to a terminal box setup. Commissioning a replacement unit is streamlined through an integrated electronic nameplate that stores default motor operating parameters. When connected to compatible Lenze drive controllers, including the i700, i950, or 9400 series, the drive automatically recognizes the motor identity and configuration parameters via Lenze EASY Starter commissioning software. ABC Industrial Parts provides replacement units to help restore motion control systems without extensive manual motor parameter entry.
System diagnostics and operational monitoring are handled through the connected drive controller rather than physical indicators on the motor housing. Host inverters continuously evaluate feedback signal communication and thermal telemetry using integrated PTC, KTY, or Pt1000 sensors embedded within the motor windings. First-line troubleshooting for positioning or thermal faults should involve verifying SpeedTec connector seating, testing signal cable continuity, and confirming motor parameter auto-recognition within EASY Starter. Internal electrical winding short circuits, encoder feedback corruption, or mechanical brake wear cannot be serviced on the factory floor, making a tested unit from ABC Industrial Parts the standard solution for quick recovery.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | M85AS140S325SFALC |
| Model / Type | 16085830 (m850-S140) |
| Product Family | m850 |
| Component Type | Permanent Magnet Synchronous Servo Motor |
| Frame Size | 140 |
| Stack Length | S (Short) |
| Rated Speed | 3250 rpm |
| Cooling Method | Self-ventilated / Natural convection |
| Holding Brake | Integrated holding brake |
| Ingress Protection | IP65 |
| Power Connection | SpeedTec circular connector / Terminal box |
| Feedback Connection | SpeedTec circular connector |
Programming and Configuration
Setup and parameter alignment for the Lenze M85AS140S325SFALC servo motor are executed using Lenze EASY Starter commissioning software. The motor is equipped with an electronic nameplate stored within internal memory that holds factory settings, control parameters, and thermal monitoring profile definitions.
When connected to compatible Lenze drive controllers, the inverter automatically uploads the electronic nameplate data upon initialization. This plug-and-play identification eliminates manual motor data entry, enabling rapid commissioning and ensuring precise alignment with drive-side current loops and thermal protection thresholds.
Communication and System Integration
The M85AS140S325SFALC integrates into machine automation architectures via standardized SpeedTec circular connectors. Designed for rapid installation and secure quarter-turn locking, these connectors maintain robust shield grounding and vibration resistance for high-speed dynamic applications.
Feedback signals, including resolver or encoder feedback alongside embedded thermal sensor telemetry (PTC, KTY, or Pt1000), are routed to the parent servo controller. The motor is engineered for full integration with Lenze i700, i950, and 9400 series servo inverters in high-speed packaging, robotic transfer, and automated sorting conveyor systems.
Diagnostics and Status Indication
Diagnostic telemetry for the M85AS140S325SFALC is generated internally by thermal elements and feedback devices, then processed and displayed directly on the connected Lenze drive inverter or within EASY Starter software. The motor does not feature external LED status indicators on its housing.
The host drive controller continuously monitors temperature feedback from embedded PTC, KTY, or Pt1000 sensors and tracks feedback signal continuity from the resolver or encoder. Deviations in feedback integrity or over-temperature conditions trigger immediate drive-level alarms to prevent hardware damage.
Replacement and Spare Part Considerations
When selecting a replacement for an installed servo motor, confirm that the complete designation matches M85AS140S325SFALC and part number 16085830. Key physical parameters, including the size 140 frame, short stack length S, and SpeedTec circular connection arrangement, must align with existing mechanical mountings and cable harnesses.
Verification of the integrated holding brake option is essential to ensure safe emergency stopping and holding performance on vertical or loaded axes. Following physical replacement, powering up the unit connected to a Lenze i700, i950, or 9400 inverter will trigger electronic nameplate parameter extraction, simplifying software setup in EASY Starter.
Frequently Asked Questions
Which Lenze drive controllers are compatible with the M85AS140S325SFALC motor?
The M85AS140S325SFALC is compatible with Lenze i700 Servo Inverters, i950 Servo Inverters, and 9400 Servo Drives.
What connection methods are used for power and feedback wiring?
Feedback connections use quick-connect SpeedTec circular connectors. Power connections utilize SpeedTec circular connectors or a terminal box.
Does the motor require manual parameter configuration in software?
No. The motor includes an integrated electronic nameplate that automatically transfers parameters to compatible Lenze drives using EASY Starter software.
What thermal sensors are embedded inside the motor for diagnostic monitoring?
The motor features thermal sensor monitoring supporting PTC, KTY, or Pt1000 sensors evaluated directly by the connected drive controller.
What is the protection rating and cooling method of this servo motor?
The motor features an IP65 protection rating against dust and low-pressure water jets and operates using self-ventilated natural convection cooling.
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Disclaimer:
We are not an authorised distributor of Lenze.
Product photos are for illustration purposes only and may differ from the actual product delivered.
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