Lenze E94AZPS0244N 9400 Series Installation Backplane
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Product Information
The Lenze E94AZPS0244N is an installation backplane engineered as a mechanical mounting base and central electrical power distribution interface for the Lenze 9400 Single Drive and HighLine servo drive family. Designed to accommodate drive axis modules with rated power outputs from 5.5 kW to 11.0 kW, this assembly operates within a mains supply voltage range of 180 V AC to 550 V AC. Featuring an IP21 protection rating and weighing 1.81 kg, the backplane serves as a structural framework inside control cabinets. The N variant designation indicates that this model is supplied without an integrated brake chopper, making it suitable for drive architectures that utilize independent braking resistor configurations or applications that do not require regenerative power dissipation.
The backplane simplifies control cabinet wiring by integrating a direct DC busbar connector system, facilitating multi-axis coupling and continuous power distribution across adjacent drive units. A dedicated cable shield clamp plate ensures reliable grounding for both power cables and control lines, providing effective electromagnetic compatibility in high-noise industrial environments. Installing or servicing a replacement backplane involves mounting the base into the enclosure, securing the main supply connections, and attaching cable shielding. Because active parameter sets, drive firmware, and fieldbus configurations reside within the plug-in axis module rather than the mounting base, swapping out an existing backplane allows for rapid hardware replacement. ABC Industrial Parts can support maintenance teams in sourcing compatible mounting components and replacement modules to keep cabinet builds running smoothly.
Ensuring uninterrupted system operation relies on practical physical and electrical verification during installation and routine maintenance. First-line field inspections should verify that the mains supply remains stable within the 180 V AC to 550 V AC operating window, that the DC busbar direct plug-in terminals are properly aligned and seated, and that shield clamps maintain solid metallic contact with grounding plates. Mechanical wear, terminal damage, or thermal degradation on busbar contact points can compromise electrical continuity and power transfer across the drive system. When structural damage or contact pitting occurs, replacing the damaged backplane base with a tested unit from ABC Industrial Parts offers a fast and dependable solution to restore machine operational readiness.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | E94AZPS0244N |
| Model / Type | Installation Backplane Without Brake Module |
| Product Family | Servo Drives 9400 |
| Component Type | Installation Backplane |
| Supply Voltage Range | 180 - 550 V AC |
| Rated Power Range | 5.5 - 11.0 kW |
| Integrated Brake Chopper | No |
| DC Bus Connection | DC Busbar / Direct plug-in connection |
| Shield Connection | Shield clamp / plate |
| Protection Rating | IP21 |
| Weight | 1.81 kg |
Replacement and Spare Part Considerations
When substituting an existing installation backplane, maintenance personnel must confirm that the replacement model matches the specific power frame size and electrical configuration of the installed drive modules. The Lenze E94AZPS0244N is tailored for 9400 series Single Drive and HighLine units rated between 5.5 kW and 11.0 kW. Particular attention must be paid to the model suffix: the N designation indicates the omission of an integrated brake chopper module. System designs requiring dynamic braking must ensure external braking resistor circuits or separate chopper units are properly integrated into the cabinet power distribution layout.
Because the backplane functions as a passive mechanical and power distribution framework, swapping the unit requires no software downloading, parameter transfer, or firmware flashing on the backplane itself. Maintenance technicians should ensure all mains power sources and DC bus capacitors are fully discharged prior to handling. When installing the replacement unit, verify that all power wiring, DC busbar connectors, and shield clamp grounding plates are securely torqued and seated to preserve EMC shielding and prevent high-current connection resistance.
Frequently Asked Questions
What power range of servo drives is compatible with the Lenze E94AZPS0244N backplane?
The E94AZPS0244N backplane is designed to support Lenze 9400 Single Drive and HighLine servo axis modules with power ratings from 5.5 kW to 11.0 kW.
What does the N suffix signify in the part number E94AZPS0244N?
The N suffix indicates that this backplane model does not include an integrated brake chopper module, making it suitable for applications with external braking setups or without regenerative energy requirements.
Is parameter transfer or firmware configuration required when replacing an E94AZPS0244N backplane?
No configuration transfer or firmware setup is required for the backplane itself, as it is a passive mechanical and electrical base. System parameters and drive configuration reside on the active axis module mounted onto it.
What supply voltage range does the E94AZPS0244N backplane support?
The unit operates across a mains supply voltage range of 180 V AC to 550 V AC.
How does the E94AZPS0244N support electromagnetic compatibility (EMC)?
It features dedicated shield clamp plates that secure power and control cables directly to the chassis ground, delivering effective noise mitigation within the control cabinet.
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Data backup and recovery
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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.
Disclaimer:
We are not an authorised distributor of Lenze.
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