Lenze E94APNE1004 DC Supply Unit – 9400 HighLine 100 kW
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Product Information
The Lenze E94APNE1004 DC Supply Unit is a high-capacity 100 kW central power supply module engineered for the Lenze Servo Drives 9400 family, specifically supporting 9400 HighLine multi-axis motion control systems. Operating on a 3-phase AC input supply ranging from 320 V AC to 528 V AC at a rated input current of 173 A, the module rectifies AC mains power into a continuous 565 V DC bus output. Delivering up to 180 A of continuous DC output current, this unit distributes energy across a shared DC busbar to multiple single-axis or multi-axis drive controllers in high-demand industrial automation systems across packaging, automotive manufacturing, material handling, and metal processing applications.
Interfacing with system controllers and adjacent drive modules is facilitated by an integrated CANopen system bus operating at transfer rates up to 1 Mbit/s. For broader fieldbus integration, the unit features an extension slot that accepts option cards including E94AYCPM for PROFIBUS-DP, E94AYCER for PROFINET, E94AYAET for EtherCAT, and E94AYCEN for EtherNet/IP. Putting a replacement E94APNE1004 into service is streamlined through pluggable MM128 or MM256 memory modules, which store complete device parameter sets. Moving the memory card from a faulty module directly to a replacement unit allows hardware swapping without needing a PC or software, while full online configuration and status verification can also be conducted using Lenze Engineer or EASY Starter software. ABC Industrial Parts provides tested replacement units and technical guidance to ensure quick, reliable deployment into existing machinery.
Operational monitoring is provided on the front panel via tri-color status LEDs: a green Ready/Power LED indicating initialization or active DC bus power, a red Error LED signaling warnings or active trips, and a multi-color BUS Status LED showing network communication state. Comprehensive diagnostics are recorded in an internal fault buffer accessible via the system bus or engineering software tools, registering fault conditions such as mains phase failure, overvoltage, undervoltage, and heatsink overtemperature. While input supply anomalies or external resistor circuits can be checked directly on site, board-level failures or thermal sensor faults require specialized repair, making a tested donor or replacement unit from ABC Industrial Parts the quickest route to restoring operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | E94APNE1004 |
| Model / Type | DC Supply Unit |
| Product Family | Servo Drives 9400 |
| Series | 9400 HighLine |
| Component Type | Power Supply Module |
| Rated Power | 100 kW |
| Supply Voltage Range | 320 V AC to 528 V AC (3-phase) |
| Input Rated Current | 173 A |
| Output Voltage | 565 V DC |
| Continuous Output Current | 180 A |
| Integrated Bus Interface | CANopen (1 Mbit/s) |
| Optional Fieldbus Interfaces | PROFIBUS-DP, PROFINET, EtherCAT, EtherNet/IP |
| Compatible Memory Modules | Lenze MM128, MM256 |
| Engineering Software | Lenze Engineer, Lenze EASY Starter |
Programming and Configuration
Parameter management for the Lenze E94APNE1004 is handled electronically through Lenze Engineer or Lenze EASY Starter software packages. The software suite provides direct online diagnostic access, real-time parameter configuration, and live oscilloscope logging to monitor DC bus voltage stability and input current load under varying operational conditions.
Complete device configuration profiles are stored on pluggable non-volatile memory cards, specifically the Lenze MM128 or MM256 memory modules. During replacement procedures, transferring the physical memory card from the existing module to the spare unit automatically transfers all device parameters, eliminating the need for field reprogramming or software connections during hardware swaps.
Communication and System Integration
The E94APNE1004 includes a built-in CANopen system bus interface capable of communication speeds up to 1 Mbit/s. This integrated link supports rapid data exchange between the power supply module, central PLCs, and downstream Lenze 9400 HighLine servo drives, ensuring synchronized power management across multi-axis configurations.
For integration into broader industrial control networks, the module provides a dedicated extension slot designed to accommodate plug-in communication option cards. Supported interfaces include the E94AYCPM card for PROFIBUS-DP, E94AYCER for PROFINET, E94AYAET for EtherCAT, and E94AYCEN for EtherNet/IP, enabling flexible placement into diverse automation architectures.
Diagnostics and Status Indication
Diagnostics on the Lenze E94APNE1004 combine hardware front-panel status indications with internal software fault logging. An integrated fault buffer memory continuously records operational trips, warnings, and unexpected supply interruptions, which can be extracted and analyzed via fieldbus communication or software tools.
Detailed real-time diagnostics, live signal monitoring, and history logs are accessible through Lenze EASY Starter and Lenze Engineer software. These tools display real-time mains line balance, DC bus voltage levels, and thermal conditions to assist in preventive maintenance and rapid fault isolation.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready / Power LED | Green - Solid / Blinking | On: Unit is ready for operation and DC bus voltage is present. Blinking: Unit initializing. |
| Error LED | Red - Solid / Blinking | On: Active fault condition present. Blinking: Warning / trip pending. Solid on with no response indicates potential hardware failure. |
| BUS Status LED | Multi-color - Variable | Indicates state of fieldbus/system bus communication link. |
Replacement and Spare Part Considerations
When replacing an E94APNE1004 DC Supply Unit, matching the exact part number and power rating is essential for safe operation within multi-axis drive cabinets. Ensure the replacement module matches the 100 kW power rating, 180 A continuous DC current output, and 3-phase AC input voltage range of 320 V AC to 528 V AC to support installed drive loads.
Hardware replacement is simplified by transferring the existing Lenze MM128 or MM256 memory module to the replacement unit. Maintenance personnel should ensure power is completely disconnected before removing or inserting memory modules or fieldbus option cards (E94AYCPM, E94AYCER, E94AYAET, or E94AYCEN) to prevent electronic damage and guarantee immediate parameter recovery on power-up.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| 0x00210001 | DC Bus Overvoltage (OU) | DC link voltage exceeded upper threshold limit. | Excessive braking energy, braking resistor disconnected or defective, line voltage too high. | Check braking resistor circuit, verify mains input voltage, check deceleration times. |
| 0x00210002 | DC Bus Undervoltage (LU) | DC link voltage fell below minimum allowable operating threshold. | Mains supply phase failure, low mains voltage, supply circuit breaker tripped. | Check mains input wiring, line fuses, line voltage levels, and contactor state. |
| 0x00310001 | Overcurrent / Short Circuit | Instantaneous overcurrent detected in power stage or DC output. | Short circuit on DC link busbar, ground fault, power semiconductor failure. | Inspect DC link connections for short circuits or ground faults. If fault persists on power-up with load disconnected, return unit for repair. |
| 0x00510001 | Heatsink Overtemperature (OH) | Power module heatsink temperature exceeded allowable operating limit. | Cabinet cooling fan failure, blocked ventilation slots, ambient temperature too high, continuous overload. | Check cabinet ventilation, clean cooling fins, check internal cooling fan function. |
| 0x00510002 | Temperature Sensor Fault | Heatsink thermal sensor signal open circuit or shorted. | Defective internal thermal sensor or internal connection failure. | Internal hardware failure - return unit for repair. |
| 0x00610001 | Mains Phase Failure | Failure or asymmetry detected in 3-phase AC input supply. | One phase lost on incoming line, blown input fuse, loose terminal connection. | Check 3-phase AC line voltages L1, L2, L3 and check upstream fuses. |
| 0x00710001 | Internal Hardware Fault | Self-diagnostic check detected critical internal hardware failure. | Failure of internal control board or gate driver circuitry. | Internal hardware failure - return unit for repair. |
| 0x00810001 | Memory Module Error | Pluggable memory card missing, corrupt, or incompatible. | Memory module not fully seated, corrupted data, invalid hardware configuration. | Reseat memory module, check connector pins, reformat or replace memory module. |
Frequently Asked Questions
What software is used to configure and diagnose the Lenze E94APNE1004?
Lenze Engineer and Lenze EASY Starter software packages are used for configuring, monitoring, and diagnosing the E94APNE1004 supply module.
How is parameter data transferred when replacing a faulty E94APNE1004 module?
Parameters can be transferred without a PC by moving the pluggable Lenze MM128 or MM256 memory module from the original unit directly into the replacement unit.
Which fieldbus protocols are supported by the Lenze E94APNE1004?
The unit features built-in CANopen communication up to 1 Mbit/s and supports PROFINET (E94AYCER), PROFIBUS-DP (E94AYCPM), EtherCAT (E94AYAET), and EtherNet/IP (E94AYCEN) via optional extension cards.
What does a solid red Error LED indicate on the front panel?
A solid red Error LED indicates an active fault condition, such as an overvoltage, overcurrent, or thermal trip. If the LED remains solid with no system response, it may indicate internal hardware failure.
What power specifications does the Lenze E94APNE1004 deliver?
The E94APNE1004 operates on a 3-phase input voltage of 320 V AC to 528 V AC (173 A input current) and delivers a rated output power of 100 kW with 565 V DC output voltage and 180 A continuous DC output current.
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