Lenze 15128853 E94AZPS0074AN 24V DC Power Supply Module
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Product Information
The Lenze 15128853 (model E94AZPS0074AN) is an auxiliary switched-mode power supply module engineered specifically for the Lenze Servo Drives 9400 product family. Designed to convert incoming AC mains power into a regulated 24 V DC control voltage, it provides a rated continuous current output of 7.4 A and a total power capacity of 177.6 W. This continuous power feed is used to energize control electronics, drive option cards, fieldbus interfaces, and external system sensors in industrial control cabinets. Built for global operational compatibility, the unit accepts a 3-phase AC input voltage range from 320 V AC to 528 V AC, preventing control resets caused by industrial mains supply fluctuations.
Field connections on the E94AZPS0074AN are made through heavy-duty screw terminal blocks, accommodating secure wiring for both the 3-phase AC input supply and the 24 V DC output lines. Integrating a spare unit into existing machinery involves physical mounting and restoring the standard terminal connections across compatible Lenze 9400 HighLine, StateLine, Single Drive, or Multi Drive architectures. Because the power module operates as a direct hardware power converter without internal software parameter sets or firmware profiles, commissioning a replacement focuses on verifying correct input line phases, wire terminal torque, and load distribution. ABC Industrial Parts can support maintenance teams in sourcing tested replacement modules to keep system downtime to a minimum.
Visual operational feedback is provided directly on the front face of the module by a green 24V OK LED indicator. A solid green illumination confirms that the output voltage is within its proper 24 V DC operating range. If control power drops or the status LED turns off, initial on-site checks should focus on verifying the 3-phase AC input supply voltage across the input terminals and inspecting connected load devices for power bus short circuits or current overdraw. Board-level component failures within the power module are not field-serviceable; replacing the assembly with a tested spare or arranging repair services through ABC Industrial Parts provides a rapid path back to full production readiness.
Technical Specifications
| Manufacturer | Lenze |
| Part number | 15128853 |
| Model / Type | E94AZPS0074AN |
| Component type | Power Supply Module |
| Product family | Servo Drives 9400 |
| Output voltage | 24 V DC |
| Output current | 7.4 A |
| Supply voltage range | 320 - 528 V AC (3-phase) |
| Rated power output | 177.6 W |
| Input / output connection type | Screw Terminal Block |
Diagnostics and Status Indication
The Lenze E94AZPS0074AN incorporates a front-panel status LED to facilitate real-time visual monitoring of the DC output power state. A solid green light on the 24V OK indicator signals that the module is powered correctly and that the output voltage remains within the expected operating limits.
During initial startup or maintenance fault-finding, the absence of the 24V OK LED indication points toward line supply interruption or downstream short circuits on the 24 V DC distribution line. Field technicians should verify input phase voltages with a multimeter and check connected option modules for excessive loading prior to replacing the power supply hardware.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| 24V OK | Green - Solid | Green LED illuminated indicates output voltage 24 V DC is present and within correct operating range. |
Replacement and Spare Part Considerations
Replacing a Lenze 15128853 auxiliary power supply module requires ensuring physical mechanical alignment and matching electrical connections. As a hardware power module delivering up to 7.4 A, the unit requires no parameter file downloads, memory card transfers, or software setup when exchanged.
Before installing a spare module, verify that the connected load from drive option cards, fieldbus adapters, and cabinet sensors does not exceed the continuous power output rating of 177.6 W. Additionally, ensure the input power wiring is correctly matched to the required 320 V AC to 528 V AC 3-phase supply and secured firmly into the screw terminal blocks.
Frequently Asked Questions
What is the continuous output rating of the Lenze 15128853 power supply module?
The Lenze 15128853 (E94AZPS0074AN) delivers a regulated 24 V DC output at up to 7.4 A continuous current, providing a total rated power output of 177.6 W.
What input mains voltage range is required for the Lenze E94AZPS0074AN?
The module operates on a 3-phase AC input supply ranging from 320 V AC to 528 V AC.
Which Lenze drive series use this power supply module?
This module is designed for use with Lenze Servo Drives 9400 HighLine and StateLine systems, supporting both Single Drive and Multi Drive backplane configurations.
Does the Lenze 15128853 power supply require software configuration during replacement?
No software configuration or parameter transfer is required. The module is a direct hardware power supply component utilizing screw terminal connections.
How do you confirm that the 24 V DC output voltage is active on the module?
The front panel includes a green '24V OK' LED indicator. When lit solid green, it confirms that the 24 V DC output voltage is present and operating within normal tolerances.
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Specific firmware and hardware versions
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Disclaimer:
We are not an authorised distributor of Lenze.
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