Lenze E94AYM34 MM340 MEMORY MODULE – Servo Drives 9400
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Product Information
The Lenze E94AYM34 MM340 MEMORY MODULE is a plug-in storage component designed for the Lenze Servo Drives 9400 product family, including 9400 StateLine and HighLine servo inverters. Utilizing non-volatile Flash EEPROM technology, this memory module retains complete parameter sets, motor configurations, PLC application programs, and device settings without requiring battery power backup. It interfaces directly with the host inverter via an integrated multi-pin card edge connector and receives power directly through the drive bus, providing reliable data preservation for motion control systems across packaging, automotive manufacturing, logistics, and textile automation environments.
Connecting via the drive's internal bus interface, the E94AYM34 enables seamless configuration management and rapid deployment. Machine operators and technicians can interface with the stored memory contents using Lenze L-force Engineer software or the Lenze EASY Navigator keypad. When replacing a drive unit, transferring the physical MM340 module to a donor inverter allows the replacement unit to automatically execute the stored drive parameters and motion program upon startup. This eliminates the need for manual parameter re-entry or connected PC software during a hardware swap. For facilities restoring legacy equipment or commissioning replacement drives, ABC Industrial Parts provides tested components to keep critical production lines fully operational.
Diagnostic information regarding the E94AYM34 memory module is made available through drive system diagnostic logs on the host 9400 inverter, parameter readouts in L-force Engineer, and keypad diagnostics on the EASY Navigator. System faults such as missing modules (0x00130001), read/write errors (0x00130002), or parameter data mismatches (0x00130003) highlight connection issues, hardware failures, or firmware version incompatibilities. Always disconnect line power before inserting or removing the memory module to prevent hardware damage. If persistent read/write or EEPROM errors occur after re-seating the unit, internal hardware defects indicate that replacing the memory module is required. ABC Industrial Parts offers replacement units to minimize downtime during drive maintenance.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | E94AYM34 |
| Model / Type | MM340 MEMORY MODULE |
| Component Type | Memory Module |
| Product Family | Servo Drives 9400 |
| Memory Type | Flash EEPROM |
| Storage Type | Non-volatile |
| Interface Connector | Multi-pin card edge |
| Power Requirement | Powered via host drive bus |
Programming and Configuration
The Lenze E94AYM34 MM340 MEMORY MODULE integrates directly into the software workflow of the Lenze 9400 servo drive series. Parameter sets, system configuration profiles, and custom PLC application code can be transferred to and from the module using Lenze L-force Engineer software. The module's non-volatile Flash EEPROM architecture ensures that all operational data remains intact even during long-term power loss without requiring an external battery backup.
In addition to PC-based engineering tools, basic drive parameter adjustments and diagnostic readouts can be conducted directly using the Lenze EASY Navigator keypad. The E94AYM34 enables parameter cloning, allowing a single master configuration file to be duplicated quickly across multiple identical 9400 servo inverters on an automated production line.
During parameter updates or drive re-commissioning, L-force Engineer ensures firmware and hardware revision compatibility between the stored dataset on the MM340 module and the host inverter. Re-downloading configuration files directly to the module restores standard operational profiles if data corruption or version conflicts occur.
Diagnostics and Status Indication
The MM340 memory module utilizes the internal diagnostic framework of the Lenze 9400 servo drive. Status and fault records are populated within the drive system diagnostic log, which can be inspected directly via the Lenze EASY Navigator keypad or analyzed thoroughly in Lenze L-force Engineer software.
Monitoring parameter readouts and active error status allows technicians to verify communication between the host drive bus and the memory module's multi-pin edge connector. If data transmission fails or the card is improperly seated, diagnostic codes are logged to guide troubleshooting and physical inspection.
Replacement and Spare Part Considerations
Replacing a Lenze 9400 servo inverter is streamlined by transferring the existing E94AYM34 MM340 memory module directly into the replacement drive slot. Because all motor parameters, PLC application code, and device configurations are saved on the non-volatile module, the replacement inverter reads and executes the existing dataset immediately upon power restoration without requiring a PC connection.
To prevent electrical damage to the multi-pin connector or internal EEPROM flash logic, power must be completely disconnected before inserting or removing the memory module. Additionally, technicians must confirm that the target drive matches the required hardware and firmware revision. If an incompatible dataset is detected (fault code 0x00130003), L-force Engineer must be used to align the parameter file with the recipient drive hardware.
In cases where an MM340 module exhibits persistent hardware failure or EEPROM errors, a direct component replacement is required. Keeping pre-configured spare memory modules on hand allows for quick recovery and reduces downtime across automated machinery.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| 0x00130001 | Memory module fault / missing | Memory module MM340 is missing, improperly connected, or defective. | Module missing from slot, poor pin contact, or internal EEPROM flash hardware error. | Turn off power, re-insert memory module firmly into slot. If problem persists, internal hardware defect requires replacement of MM340 memory module. |
| 0x00130002 | Memory module read/write error | Failure during read or write operations to the MM340 memory module. | Power interruption during parameter saving or corrupted flash sectors. | Re-download parameters using L-force Engineer software. If error reoccurs, replace the MM340 memory module. |
| 0x00130003 | Incompatible memory module data | Parameter set or application code on memory module does not match target drive hardware/firmware revision. | Memory module transferred from a different drive model or incompatible hardware generation. | Verify drive hardware revision and download correct parameter configuration using L-force Engineer. |
Frequently Asked Questions
What is the Lenze E94AYM34 MM340 memory module used for?
The Lenze E94AYM34 MM340 memory module is a plug-in Flash EEPROM card used in Lenze 9400 StateLine and HighLine servo drives. It non-volatiles stores complete parameter sets, PLC application programs, and motor configurations, enabling rapid drive replacement and parameter cloning without a PC.
Does the E94AYM34 memory module require a backup battery?
No, the E94AYM34 relies on non-volatile Flash EEPROM memory technology, which permanently retains saved parameters and PLC application code without needing a backup battery.
Which Lenze drive series are compatible with the MM340 memory module?
The E94AYM34 MM340 module is compatible with Lenze Servo Inverter 9400 StateLine and 9400 HighLine drives, as well as Lenze L-force Engineer software and EASY Navigator keypads.
How do you swap a 9400 drive using the E94AYM34 memory module?
Power down the defective 9400 drive, remove the MM340 module from its slot, and insert it into the replacement 9400 inverter. Upon powering up, the replacement drive automatically loads and executes the stored configuration without requiring PC re-commissioning.
What should I do if fault code 0x00130001 occurs?
Fault code 0x00130001 indicates that the MM340 memory module is missing, poorly connected, or defective. Turn off drive power, re-seat the module firmly into the multi-pin card slot, and restore power. If the fault persists, replace the memory module.
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Data backup and recovery
Have you lost valuable parameters or data due to a malfunction while the manufacturer no longer provides support? At ABC Industrial Parts, we help you secure this data, both for common and specific products.
Specific firmware and hardware versions
If you are working with specific hardware or firmware versions that are no longer available from the manufacturer, ABC Industrial Parts is your partner. When making your enquiry, clearly state which versions you need, we will then look at the possibilities of supplying those versions, so that your installations continue to function optimally.
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