Lenze MCA17N35-SRMP2-Z0F0-ST5F10N-R0SU Asynchronous Servo Motor
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Product Information
The Lenze MCA17N35-SRMP2-Z0F0-ST5F10N-R0SU is an asynchronous servo motor equipped with an integrated brake, designed for high-dynamic rotary and linear positioning axes across packaging, converting, material handling, and general machine building applications. Operating as part of the Lenze MCA product family, this unit delivers a rated power output of 5.3 kW at a nominal speed of 3500 rpm, with a rated torque of 14.5 Nm, stall torque of 17 Nm, and peak torque capability up to 61 Nm. The electrical design operates at a rated frequency of 120 Hz and a rated current of 14.5 A within an IP65 enclosure using unventilated natural convection cooling. For holding static loads and secure stopping, the motor incorporates an integrated 24V DC spring-applied holding brake rated for 20 Nm of holding torque.
Connection of power and feedback signals is accomplished using quick-connect Speedtec circular plug connectors that maintain secure, vibration-resistant termination. High-precision absolute positioning feedback is provided by an internal Hiperface SRM50 absolute multi-turn encoder. The encoder contains onboard non-volatile memory that functions as an electronic nameplate, storing calibration and operational parameters that paired Lenze servo drives—such as the 9400, i700, and 8400 series—can read automatically during startup via Lenze EASY Starter commissioning software. Commissioning a replacement unit requires confirming mechanical orientation, fully locking the Speedtec plugs, and allowing the drive controller to register the parameter set. Expert support from ABC Industrial Parts can assist technical teams in parameter verification and spare part alignment prior to installation.
Operational monitoring relies on an embedded thermal sensor (KTY, PT1000, or PTC) alongside encoder feedback diagnostic channels processed directly through the connected drive controller. When abnormal operating conditions arise, the drive reports status codes such as OH4 for motor overtemperature or Sd7 for encoder communication disruptions. Initial field troubleshooting should focus on inspecting external surface cleanliness for convection heat dissipation, checking Speedtec connector seating and cable shielding, and verifying the 24V DC supply to the holding brake. Internal electrical winding damage or encoder hardware faults are not field-serviceable, making a tested exchange motor or direct replacement unit from ABC Industrial Parts the most reliable solution to bring production back online.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | MCA17N35-SRMP2-Z0F0-ST5F10N-R0SU |
| Model / Type | Servo Motor + Brake |
| Component Type | Asynchronous Servo Motor |
| Product Family | MCA |
| Rated Power | 5.3 kW |
| Rated Speed | 3500 rpm |
| Rated Torque | 14.5 Nm |
| Stall Torque | 17 Nm |
| Maximum Torque | 61 Nm |
| Rated Current | 14.5 A |
| Rated Frequency | 120 Hz |
| Brake Holding Torque | 20 Nm |
| Brake Supply Voltage | 24 V DC |
| Protection Rating | IP65 |
| Cooling Method | Natural convection (unventilated) |
Programming and Configuration
The Lenze MCA17N35-SRMP2-Z0F0-ST5F10N-R0SU simplifies setup through an automatic drive parameter recognition system embedded inside the Hiperface SRM50 encoder memory. The encoder acts as an electronic nameplate containing exact motor ratings, thermal limits, and feedback profiles. When connected to compatible Lenze servo drives, the drive controller automatically reads these stored parameters upon startup, reducing manual configuration steps.
Engineering and commissioning tasks are managed using Lenze EASY Starter software. Through EASY Starter, technicians can view real-time motor feedback, execute autotuning or closed-loop calibration, adjust brake release timing, and monitor temperature thresholds. When replacing a unit, parameter synchronization ensures that feedback alignment and drive thermal thresholds match the installed hardware.
Communication and System Integration
Physical connection to the drive system is accomplished via dedicated Speedtec circular plug connectors for power and encoder signal lines. These quarter-turn connectors provide a secure, vibration-resistant coupling suitable for moving machinery axes and demanding dynamic cycles.
The motor feedback network utilizes the Hiperface protocol delivered by the multi-turn SRM50 absolute encoder. This interface integrates directly with Lenze 9400, i700, and 8400 series servo drive controllers, maintaining continuous multi-turn absolute positioning and real-time digital communication without requiring battery-backed pulse counters.
Diagnostics and Status Indication
Diagnostic monitoring for the MCA17N35-SRMP2-Z0F0-ST5F10N-R0SU is handled through integrated thermal sensors and encoder signal feedback evaluated by the attached drive controller. The motor windings embed a KTY, PT1000, or PTC thermal sensor that constantly sends temperature data to the drive control loop.
Drive diagnostic software, such as Lenze EASY Starter, provides readout of motor operational status, winding temperature trends, and encoder signal continuity. System faults are reported directly on the host controller via dedicated fault codes.
Replacement and Spare Part Considerations
When selecting a replacement for an existing machine axis, the exact designation MCA17N35-SRMP2-Z0F0-ST5F10N-R0SU must be verified. Key options within this code designate the integrated 24V DC spring-applied holding brake delivering 20 Nm of holding torque and the Hiperface SRM50 multi-turn absolute encoder configuration.
Mechanical and electrical verification prior to startup includes checking shaft alignment, ensuring the IP65 seal remains intact, verifying Speedtec connector locking mechanisms, and confirming that the 24V DC brake release voltage is wired correctly. Re-commissioning with Lenze EASY Starter completes the automatic parameter transfer from the internal electronic nameplate.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OH4 | Motor Overtemperature Fault | Thermal sensor embedded in motor windings detected excessive temperature. | Motor thermal overload, insufficient cooling, high ambient temperature, damaged sensor wiring. | Allow motor to cool down, inspect load profile, clean external housing for heat dissipation, verify thermal sensor cable connections. |
| Sd7 | Encoder Communication Fault (Hiperface) | Communication failure or lost feedback signals between drive controller and SRM50 Hiperface encoder. | Damaged or disconnected feedback cable, loose Speedtec connector, external EMC interference, internal encoder failure. | Check feedback cable continuity and plug connections. Check shielding and grounding. If encoder hardware is defective, return motor/encoder assembly for service. |
Frequently Asked Questions
Which drive controllers support the Lenze MCA17N35-SRMP2-Z0F0-ST5F10N-R0SU?
This asynchronous servo motor is compatible with Lenze 9400, i700, and 8400 series servo drives, and utilizes Lenze EASY Starter software for commissioning and diagnostics.
How are motor parameters transferred to a replacement drive?
The integrated Hiperface SRM50 absolute multi-turn encoder contains non-volatile memory that serves as an electronic nameplate. Compatible Lenze drives automatically retrieve motor parameter data upon startup.
What power and feedback connectors are installed on this motor?
The unit features Speedtec circular plug connectors for fast, vibration-resistant connection of both power cables and encoder feedback wiring.
What actions should be taken if fault code OH4 appears?
OH4 indicates a motor overtemperature condition detected by the embedded thermal sensor. Allow the motor to cool, verify that the external housing is clean for unventilated natural convection cooling, inspect the axis load cycle, and check thermal sensor connections.
What causes fault code Sd7 and how is it resolved?
Sd7 indicates an encoder communication failure between the drive and the Hiperface SRM50 encoder. Check feedback cable continuity, confirm Speedtec connector seating, inspect shielding and grounding, and check for internal encoder hardware issues.
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