Lenze I55AE125B10010002S i550 Inverter – 0.25kW 230V Frequency Inverter
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Product Information
The Lenze I55AE125B10010002S is a compact cabinet-mounted frequency inverter within the i500 Cabinet product family, engineered for precise speed and torque control in automated industrial machinery. Functioning as an i550 Inverter, this drive supplies a rated output power of 0.25 kW (0.33 hp) with a continuous rated current of 1.7 A. Designed to accommodate flexible mains wiring, it operates across a supply voltage range of 100 to 264 V AC with support for single-phase 230 V AC (1/N/PE AC 230 V) or three-phase 230 V AC (3/PE AC 230 V) configurations. Housed in an IP20 enclosure for panel mounting, the inverter delivers motor output frequencies from 0 to 599 Hz and supports motor control methods including linear V/f, Sensorless Vector Control (SLVC), and Sensorless Synchronous Motor Control (SLPSM).
System wiring and operational integration are streamlined through vibration-proof plug-in spring control terminals featuring 5 digital inputs, 1 digital output, 2 analog inputs, 1 analog output, and 1 relay output. Native CANopen and Modbus RTU serial interfaces are integrated directly on the control unit, eliminating the requirement for extra communication option cards when linking to network master controllers. Programming and commissioning can be carried out unpowered using the onboard Micro-USB Type-B interface connected to a PC running Lenze EASY Starter software. When replacing an existing unit, parameterization can be completed tools-free by swapping the plug-in parameter memory module from the original drive. ABC Industrial Parts can assist maintenance personnel with pre-configured spares and parameter extraction from donor drives to ensure fast operational restoration.
Real-time diagnostic feedback is available on the unit front panel via two LED indicators that show operational readiness and fault conditions. Additional diagnostic access is available through the optional I5MADK0000000S keypad display, EASY Starter software diagnostic screens, or the Lenze Smart Keypad Mobile App using an optional I5MADW0000000S WLAN module. If the Error LED turns solid red or the system registers internal hardware fault code 0x6100, an internal hardware failure has occurred within the power stage or control board. Because internal component issues are not field-serviceable, acquiring a tested replacement unit or organizing a complete repair through ABC Industrial Parts offers the most dependable route back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | I55AE125B10010002S |
| Model / Type | i550 Inverter |
| Product Family | i500 Cabinet |
| Component Type | Frequency Inverter |
| Rated Power (kW) | 0.25 kW |
| Rated Power (hp) | 0.33 hp |
| Supply Voltage Range | 100 - 264 V AC |
| Supply Configuration | 1/N/PE AC 230 V / 3/PE AC 230 V |
| Rated Output Current | 1.7 A |
| Output Voltage | 0 - 3x AC Supply Voltage |
| Output Frequency | 0 - 599 Hz |
| Protection Rating | IP20 |
| Mounting Type | Cabinet Mount |
| Onboard Protocols | CANopen, Modbus RTU |
| Service Interface | Micro-USB Type-B |
| Digital Inputs | 5 |
| Digital Outputs | 1 |
| Analog Inputs | 2 |
| Analog Outputs | 1 |
| Relay Outputs | 1 |
Programming and Configuration
Parameter setup and commissioning for the Lenze I55AE125B10010002S inverter are performed using the Lenze EASY Starter engineering software tool. Connection to a programming PC is established through the integrated Micro-USB Type-B service port located on the control module. This interface powers internal control electronics directly from the USB connection, allowing technicians to upload, adjust, and verify parameter configurations safely without applying mains power to the cabinet.
For rapid parameter backup and physical transfer, the inverter utilizes the plug-in Lenze I5MADM0000000S Parameter Memory Module (EAM). When replacing a drive unit, transferring this removable memory chip to the replacement hardware duplicates all parameter sets automatically without requiring software tools or network downloads. Local manual configuration can also be carried out using the optional Lenze I5MADK0000000S plug-in keypad or wirelessly via the Lenze Smart Keypad Mobile App paired with the optional Lenze I5MADW0000000S WLAN module.
Communication and System Integration
The Lenze I55AE125B10010002S includes integrated CANopen and Modbus RTU protocols natively on the control board, allowing direct integration into fieldbus automation architectures without purchasing external expansion hardware. Machine control networks can monitor drive status, update operational speed commands, and read back real-time diagnostic parameters over standard serial network topologies.
When operating on a CANopen network, proper bus installation requires 120 Ohm termination resistors at both physical ends of the line along with verified baud rates and unique node ID assignments. For Modbus RTU RS-485 networks, communication stability depends on matching serial baud rate and parity settings across the master controller and target slave address. Diagnostic register access across both protocols allows continuous monitoring of drive activity and immediate reporting of error codes to the master PLC.
Diagnostics and Status Indication
The inverter provides dual-LED visual diagnostics on its front panel to display real-time operational status and fault states. A green Ready LED indicates whether the drive is enabled and running or held in an inhibit condition. A red Error LED signals active warnings, recoverable operational trips, or unrecoverable hardware faults.
Detailed numerical fault code tracking is available using the diagnostic tab in Lenze EASY Starter software over the Micro-USB link, through the optional I5MADK0000000S keypad display, or via the Smart Keypad Mobile App with an installed I5MADW0000000S WLAN module. The internal fault buffer records recent error events with status data to streamline troubleshooting.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready LED | Green - Solid | Inverter operation enabled, motor running |
| Ready LED | Green - Flashing | Inverter ready for operation / Inhibit active |
| Error LED | Red - Flashing | Warning or recoverable fault present |
| Error LED | Red - Solid | Non-recoverable hardware fault / internal error — return unit for repair |
Replacement and Spare Part Considerations
When replacing an existing Lenze I55AE125B10010002S, confirm that the substitute unit matches the exact part number to ensure hardware and voltage rating compatibility (0.25 kW, 1.7 A continuous output, 230 V AC supply). Vibration-proof plug-in spring control terminals allow wiring to be detached and reconnected cleanly without rewiring individual terminal pins.
To transfer drive parameters to a replacement unit without software tools, remove the Lenze I5MADM0000000S Parameter Memory Module from the original drive and insert it into the replacement unit before applying main power. Alternatively, configuration files can be saved and downloaded over the Micro-USB interface using Lenze EASY Starter software. If an internal hardware error such as code 0x6100 is present, internal board repairs or a full unit exchange are required.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| 0x1110 | DC Bus Undervoltage | DC bus voltage fell below the undervoltage threshold. | Mains supply voltage too low, mains phase failure, or transient voltage drop. | Check input mains voltage and supply line connections. |
| 0x1120 | DC Bus Overvoltage | DC bus voltage exceeded the overvoltage trip level. | Excessive regenerative energy from motor deceleration, deceleration time too short, or dynamic braking resistor missing/faulty. | Increase deceleration ramp time or install/check braking resistor. |
| 0x2211 | Earth Fault / Ground Fault | Short circuit to earth detected at output terminals. | Motor cable insulation failure, ground short in motor winding, or excessive cable length/capacitance. | Check motor wiring and insulation resistance of motor windings. |
| 0x2221 | Motor Phase Failure | Output motor phase loss detected. | Broken motor cable, disconnected motor terminal, or contactor opened between drive and motor. | Check motor output cables, terminal tightness, and motor contactor status. |
| 0x2310 | Inverter Overcurrent | Instantaneous current limit exceeded on output stages. | Output short circuit, sudden load impact, incorrect motor parameters, or acceleration ramp too steep. | Check output connections, verify motor data parameters, increase acceleration time. |
| 0x2320 | Motor Overcurrent | Motor current limit exceeded continuous rating for extended duration. | Mechanical overload, jammed shaft, or undersized motor/inverter combination. | Check mechanical load and machine mechanics for blockage. |
| 0x3210 | Mains Phase Failure | Loss of single input phase detected during operation. | Blown mains supply fuse, tripped circuit breaker, or loose input wire. | Inspect supply fuses, input wiring, and mains voltage balance. |
| 0x4210 | Heatsink Overtemperature | Inverter heatsink temperature exceeded thermal limit. | Cooling fan failure, blocked airflow/heatsink fins, or ambient temperature above limit. | Clean heatsink, verify enclosure ventilation, and check fan operation. |
| 0x4310 | Motor Overtemperature | Motor temperature sensor (PTC/KTY/PT1000) or I2t motor model triggered thermal fault. | Motor overload, inadequate cooling at low speeds, or open motor thermistor circuit. | Allow motor to cool, verify cooling fan/airflow, inspect thermistor wiring. |
| 0x6100 | Internal Hardware Fault | Internal hardware, power module, or microcontroller failure detected. | Internal component degradation, hardware error — board-level fault not field-serviceable. | Internal hardware fault — power cycle unit; if fault persists, unit requires repair or replacement. |
| 0x7121 | Motor Stalled | Motor speed feedback or model indicates rotor stall under load. | Mechanical jam, insufficient torque limits, or incorrect motor control settings. | Check mechanical load and review current limit / torque boost settings. |
| 0x8130 | CANopen Communication Error | Bus warning or bus-off state on CANopen network. | CAN bus cable break, incorrect termination resistor, baud rate mismatch, or bus node ID collision. | Verify CAN bus wiring, termination resistance (120 Ohm at ends), and node settings. |
| 0x8140 | Modbus Timeout | Modbus RTU master communication timeout. | Loss of serial RS-485 master connection or incorrect baud rate / parity setting. | Check RS-485 connections, master activity, baud rate, and slave address. |
Frequently Asked Questions
How do I transfer parameters to a new Lenze I55AE125B10010002S inverter?
Parameters can be transferred tools-free by moving the plug-in Lenze I5MADM0000000S Parameter Memory Module from the original drive to the replacement unit. Parameters can also be uploaded and downloaded via the Micro-USB interface using Lenze EASY Starter PC software.
Can I configure the Lenze I55AE125B10010002S without main power connected?
Yes. Connecting a PC to the integrated Micro-USB Type-B port supplies power directly to the internal control module electronics, allowing parameter setup in Lenze EASY Starter prior to main line voltage application.
Which fieldbus communication protocols are built into this drive?
The Lenze I55AE125B10010002S includes onboard CANopen and Modbus RTU communication protocols directly on the control unit, eliminating the need for extra communication expansion cards.
What does a solid red Error LED indicate on the Lenze I55AE125B10010002S?
A solid red Error LED indicates a non-recoverable internal hardware fault or critical internal error. Power cycle the unit; if the LED remains solid red, internal components are damaged and the drive requires repair or replacement.
What power supplies are compatible with the I55AE125B10010002S drive?
The drive accepts an operating input range from 100 to 264 V AC, supporting both single-phase (1/N/PE AC 230 V) and three-phase (3/PE AC 230 V) line configurations.
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