Lenze 13378118 E94ARNE0244A22NNER-P036 Power Supply Unit
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Product Information
The Lenze 13378118, model number E94ARNE0244A22NNER-P036, is a 24 A line-regenerative power supply unit within the Lenze Servo Drives 9400 HighLine platform. Designed for control cabinet panel mounting with an IP20 protection rating, this module delivers a regulated 625 V DC output to power multi-axis servo drive configurations from a 3-phase AC input voltage range of 320 V AC to 528 V AC. Its energy-recovering regenerative architecture feeds kinetic deceleration energy directly back into the electrical grid, eliminating external braking resistors and reducing cabinet cooling loads in high-duty automated machinery across automotive, packaging, printing, and textile applications.
Network integration and parameter management are central to commissioning this power module. The unit features an onboard CANopen system bus capable of speeds up to 1 Mbit/s using RJ45 or Sub-D connectors, alongside two expansion slots that accept fieldbus modules such as PROFINET (E94AYCER or E94AYCPM), EtherCAT (E94AYCEI), EtherNet/IP (E94AYCEN), and PROFIBUS-DP. Putting a replacement unit into service is simplified by the removable E94AYM plug-in memory card, which retains the complete device parameter dataset; technicians can transfer the card directly into a replacement chassis without needing software or a PC connection. ABC Industrial Parts can support maintenance teams with replacement hardware and configuration transfer procedures to minimize machine downtime.
Local status and error monitoring are handled by dedicated front-panel LEDs for drive readiness, error indications, and CAN bus states, supplemented by diagnostic codes accessible via the E94AZKAE001 handheld keypad or software connection through the X6 diagnostic port. During fault troubleshooting, primary field checks should focus on verifying three-phase mains supply voltages, line fuses, fieldbus cabling, and power section wiring insulation. If internal semiconductor short circuits or hardware failures occur, the internal electronics are not field-serviceable, and sourcing a fully tested replacement or repair unit through ABC Industrial Parts provides a safe, reliable path back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13378118 |
| Model / Type | E94ARNE0244A22NNER-P036 |
| Component Type | Regenerative Power Supply Unit |
| Product Family | Servo Drives 9400 HighLine |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Mains Current | 24 A |
| DC Bus Output Voltage | 625 V DC |
| Protection Rating | IP20 |
| Mounting Type | Control cabinet panel mounting |
| Onboard System Bus | CANopen (1 Mbit/s) |
| Extension Slots | 2 module slots for fieldbus and safety options |
| Lifecycle Status | Discontinued |
Programming and Configuration
Parameterization and online monitoring of the Lenze 13378118 power supply unit are conducted using Lenze engineering software suites, including EASY Starter and L-force Engineer. Connecting a PC to the X6 diagnostic port provides full access to event history, operating status, and parameter adjustments. Diagnostics can also be performed locally using the optional E94AZKAE001 handheld keypad connected to the front diagnostic port.
Device parameters and configuration datasets are stored on the plug-in Lenze E94AYM memory module. When exchanging hardware, parameter migration does not require software reloading or re-commissioning. Removing the memory card from the original unit and inserting it into the replacement chassis restores system-specific operating parameters immediately upon power-up.
Communication and System Integration
The E94ARNE0244A22NNER-P036 is equipped with an integrated CANopen system bus interface operating at speeds up to 1 Mbit/s. Physical communication connections are supported via RJ45 or Sub-D connectors, enabling direct bus communication across multi-axis Lenze 9400 HighLine servo drive lineups for synchronized power management.
For integration into broader industrial automation networks, the unit features two module expansion slots. These slots accommodate option cards for high-level fieldbus protocols, including PROFINET (E94AYCER or E94AYCPM), EtherCAT (E94AYCEI), EtherNet/IP (E94AYCEN), and PROFIBUS-DP, allowing seamless connection to centralized PLC systems.
Diagnostics and Status Indication
Real-time visual monitoring is provided through status LEDs located on the front panel of the power unit. Four primary LEDs report drive readiness, overall hardware error status, CAN bus operation, and CAN communication faults. A solid red DRV-ERR light indicates an active fault state or internal hardware failure.
Detailed diagnostic information and specific event codes can be read via the E94AZKAE001 handheld keypad or through software diagnostics in EASY Starter and L-force Engineer via the X6 port.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DRV-RDY | Green - Solid / Flashing / Off | Green ON: Ready; Green Flashing: In operation/enabled; OFF: Not ready or Fault state |
| DRV-ERR | Red - Solid / Flashing / Off | Red ON or Flashing: Fault or Warning active; OFF: No error; Constant RED indicates internal hardware failure |
| CAN-RUN | Green - Solid / Flashing / Off | Green ON: Operational; Flashing: Pre-Operational; OFF: Stopped/Reset |
| CAN-ERR | Red - Solid / Flashing / Off | Red ON: Bus off / controller error; Flashing: Warning threshold reached |
Replacement and Spare Part Considerations
When replacing a Lenze 13378118 unit, verify that the replacement hardware matches the exact type code E94ARNE0244A22NNER-P036. As this model is discontinued, exchanging units requires ensuring that any installed option cards, such as PROFINET (E94AYCER/E94AYCPM) or EtherCAT (E94AYCEI) modules, are transferred to the replacement chassis alongside the E94AYM memory module.
Prior to powering on a replacement unit, inspect the incoming 3-phase AC supply lines (320–528 V AC) and fuses to rule out phase loss or line voltage spikes. External power section wiring and DC bus connections should be checked for short circuits or ground faults to protect internal power semiconductors during restart.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| 0x0001 | Earth Fault | Short circuit or ground fault detected on power section or DC bus connections. | Ground fault in power wiring or internal power stage fault. | Check motor and DC bus wiring insulation. If external wiring is verified intact, an internal hardware failure exists — return unit for repair. |
| 0x0002 | Short Circuit | Short circuit detected in output stage or DC terminals. | Short circuit across phase connections or defective internal power semiconductors. | Disconnect external cables and test drive output. If trip recurs with lines disconnected, internal power stage failure — replace or repair unit. |
| 0x0010 | DC Bus Overvoltage (Umax) | DC bus voltage exceeded maximum allowable limit. | Mains voltage surge or excessive regenerative power. | Measure line input voltage, verify line regeneration unit operating parameters and system settings. |
| 0x0011 | DC Bus Undervoltage (Umin) | DC bus voltage fell below lower operating threshold. | AC mains supply power drop, open supply fuse, or line phase loss. | Check AC input line voltage across all three phases, inspect supply fuses and line contactor. |
| 0x0030 | Heatsink Overtemperature | Power section heatsink temperature exceeded maximum safety threshold. | Cooling fan failure, obstructed ventilation paths, or high ambient enclosure temperature. | Clean heatsink, inspect cabinet fan operation, and verify ambient air temperature is within limits. |
| 0x0031 | Interior Overtemperature | Air temperature inside the module frame exceeded safety threshold. | Insufficient cabinet airflow or internal fan breakdown. | Improve enclosure ventilation and inspect internal cooling fan. |
| 0x0050 | System Fault / Hardware Error | Internal micro-controller hardware error or system monitoring failure. | Internal electronic board failure or corrupted micro-controller execution. | Internal hardware failure — not field serviceable. Cycle power. If fault persists, replace unit or contact Lenze service for return. |
| 0x0060 | Communication Fault | Communication interruption on active fieldbus interface or system bus. | Loose fieldbus connector, cable fault, node address mismatch, or missing bus termination. | Inspect physical network connections, verify bus termination, and check master controller status. |
| 0x00A0 | Mains Failure / Phase Error | Input AC mains supply phase loss or severe unbalanced line voltage detected. | Missing line phase or blown incoming AC line fuse. | Check input AC voltage on L1, L2, and L3 lines and check incoming protection fuses. |
Frequently Asked Questions
How do I transfer parameters when replacing a Lenze 13378118 power module?
Parameter transfer is accomplished by removing the E94AYM memory module from the existing unit and inserting it into the replacement unit. The parameter dataset is automatically loaded on power-up without requiring a PC or software tools.
What line supply voltage is required for the Lenze E94ARNE0244A22NNER-P036?
The module requires a 3-phase AC input voltage between 320 V AC and 528 V AC, drawing a rated mains current of 24 A to deliver a 625 V DC output.
Which fieldbus communication protocols are supported?
The module features an onboard CANopen system bus (up to 1 Mbit/s) and two extension slots supporting optional fieldbus modules including PROFINET, EtherCAT, EtherNet/IP, and PROFIBUS-DP.
What does a constant solid red DRV-ERR LED indicate?
A solid red DRV-ERR LED indicates an active fault state or an internal hardware failure that prevents the unit from operating.
What software can be used to diagnose faults on this supply unit?
Software diagnostics can be conducted using EASY Starter or L-force Engineer via a PC connected to the X6 diagnostic port, or locally using the E94AZKAE001 handheld keypad.
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