Lenze 16074127 I55AE155B10V10004S – i550 Frequency Inverter
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Product Information
The Lenze 16074127 (model designation I55AE155B10V10004S) is a compact 0.55 kW frequency inverter from the i500 series, specifically engineered under the i550 cabinet design for speed and torque control of electric motors. Operating on a single-phase supply voltage of 230 V AC within a line range of 180 to 264 V AC, the drive delivers a 3-phase 0–230 V AC output with a continuous rated current of 3.2 A and a peak overload capacity of 4.8 A. Housed in an IP20 / NEMA 1 enclosure, the unit supports zero-clearance side-by-side mounting in electrical control cabinets at operating temperatures up to 45 °C without thermal derating.
For network and system integration, the inverter incorporates onboard CANopen and Modbus RTU fieldbus interfaces over RS-485, alongside an integrated Class C2/C3 EMC filter and an internal dynamic braking chopper. Commissioning a replacement unit is streamlined via a pluggable EPM memory module that stores drive parameters locally, allowing direct, tool-free configuration transfer to a spare drive. Parameter adjustments and setup can also be executed using Lenze EASY Starter engineering software, or through optional accessories such as the i5MADK0000000S Keypad, i5MADU0000000S USB module, or i5MADW0000000S WLAN module. Technical support from ABC Industrial Parts can assist when parameter recovery or drive alignment is required.
Diagnostic visibility is provided by front-mounted RDY and ERR status LEDs, where a solid green light indicates operational readiness, flashing green indicates running state, and a fast blinking red LED signals an internal hardware fault. Diagnostic parameters P200.00 and P125.00 allow direct evaluation of drive status and fault history. Initial troubleshooting should cover mains supply voltage across L1/N terminals, motor winding insulation, dynamic brake resistor integrity, and fieldbus termination. Internal board failures cannot be serviced in the field, making drive replacement or a tested exchange unit from ABC Industrial Parts the recommended solution to minimize equipment downtime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 16074127 |
| Model / Type | I55AE155B10V10004S |
| Product Family | i500 |
| Series | i550 |
| Component Type | Frequency Inverter |
| Rated Power | 0.55 kW |
| Supply Voltage | 230 V AC |
| Supply Voltage Range | 180 - 264 V AC |
| Mains Phases | 1-phase (1/N/PE) |
| Rated Input Current | 6.8 A |
| Output Voltage | 0 - 230 V AC |
| Continuous Output Current | 3.2 A |
| Peak Output Current | 4.8 A |
| Output Frequency Range | 0 - 599 Hz |
| Switching Frequency | 8 kHz |
| Control Methods | V/f, SLVC, SLPSM |
| Onboard Fieldbus Protocols | CANopen, Modbus RTU |
| EMC Filter | Integrated Class C2/C3 |
| Braking Chopper | Integrated |
| Enclosure Rating | IP20 / NEMA 1 |
| Max Operating Temperature (No Derating) | 45 °C |
Programming and Configuration
The Lenze 16074127 inverter supports flexible motor control modes including standard V/f characteristic control, sensorless vector control (SLVC), and sensorless control for synchronous motors (SLPSM). Drive parameters can be configured through Lenze EASY Starter engineering software connected via optional physical adapters, such as the USB module (i5MADU0000000S) or WLAN module (i5MADW0000000S) for wireless access. Alternatively, direct manual setup is available using the pluggable Keypad module (i5MADK0000000S).
A key operational feature of the i550 cabinet series is the removable EPM memory module. All application parameters, motor settings, and communication profiles are stored on this module. During maintenance or hardware replacement, moving the EPM chip from the original unit to a replacement drive transfers the full configuration without requiring connection to a PC or re-entering parameter values.
Communication and System Integration
The I55AE155B10V10004S drive features built-in CANopen and Modbus RTU communication interfaces, allowing direct connection to higher-level automation controllers and fieldbus networks over RS-485. This onboard capability eliminates the need for external communication expansion cards, reducing both hardware cost and physical footprint within control systems.
Designed for high-density panel layouts, the IP20 cabinet enclosure permits side-by-side mounting without thermal clearance distances at ambient operating temperatures up to 45 °C. An integrated Class C2/C3 radio interference suppression filter and a built-in dynamic braking chopper further simplify cabinet installation by reducing requirements for external suppression hardware and dynamic braking modules.
Diagnostics and Status Indication
Real-time diagnostic feedback is provided by front panel status LEDs and internal software status registers. Parameter P200.00 gives a direct readout of general inverter operating status, while parameter P125.00 contains a historical log buffer of recent faults. Live parameter values and oscilloscope waveform monitoring are accessible using Lenze EASY Starter software.
Visual operational status is indicated by the RDY (Ready) and ERR (Error) status LEDs on the drive front panel.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| RDY | Green - Solid / Flashing / Off | Solid green indicates ready for operation; flashing green indicates inverter running; off indicates no supply voltage or active initialization |
| ERR | Red - Solid / Flashing / Fast Blinking / Off | Solid red indicates active fault; flashing red indicates active warning; fast blinking indicates internal hardware fault requiring repair; off indicates normal operation without faults |
Replacement and Spare Part Considerations
When replacing a failed Lenze 16074127 drive, verify that the spare unit matches model code I55AE155B10V10004S to ensure identical voltage (230 V 1-phase), continuous current rating (3.2 A), and built-in fieldbus capabilities. Installing the removable EPM memory module from the existing drive into the spare inverter transfers all parameters, allowing immediate startup without re-commissioning.
Before restoring power to a newly installed drive, inspect the input terminal wiring on L1/N, confirm motor connections, and ensure fieldbus cables for CANopen or Modbus RTU are correctly seated with valid bus termination. If code 0x0081 persists after cycling power, internal component damage is present, requiring complete hardware replacement or repair.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| 0x0011 | Earth fault | Short circuit or earth fault detected on motor connection side. | Motor cable damaged, insulation failure in motor, phase-to-ground short circuit. | Check motor wiring, measure motor insulation resistance, verify motor winding integrity. |
| 0x0012 | Short circuit | Short circuit detected between output phases. | Inter-phase short circuit in motor cable or motor terminals. | Inspect output cable and motor terminal box for short circuits. |
| 0x0021 | DC bus overvoltage | DC bus voltage exceeds upper threshold limit. | Braking energy too high during deceleration, brake chopper resistor disconnected or incorrect resistance, ramp-down time too short. | Increase deceleration time (ramp down), check external brake resistor connection and value. |
| 0x0022 | DC bus undervoltage | DC bus voltage drops below lower threshold limit. | Mains supply voltage too low, line power failure, brief power interruption. | Check supply voltage, inspect input fuses and line connection. |
| 0x0031 | Motor overload (I2t) | Motor thermal model calculated thermal overload. | Continuous motor operation above rated motor current, mechanical overload on motor shaft. | Check load on motor, verify parameter settings for rated motor current and thermal time constant. |
| 0x0032 | Inverter overload (I2t) | Power stage thermal load limit reached. | Inverter operating above rated output current for extended duration, excessive switching frequency. | Reduce acceleration/load requirements, verify inverter selection for application cycle, lower switching frequency. |
| 0x0041 | Heatsink overtemperature | Power transistor heatsink temperature exceeded allowable threshold. | Inadequate control cabinet cooling, clogged heatsink/fan, ambient temperature too high. | Clean heatsink cooling fins, verify cabinet fan operation, improve airflow. |
| 0x0051 | Motor overtemperature | Motor temperature sensor input triggered alarm. | Motor overheating due to insufficient cooling or excessive load. | Allow motor to cool down, inspect external motor fan, reduce load. |
| 0x0061 | Mains phase failure | Loss or imbalance of input AC supply phase. | Loose input terminal connection, blown input fuse, asymmetric grid voltage. | Check input voltage at supply terminals L1/N. |
| 0x0071 | Fieldbus communication timeout | Communication interruption on CANopen or Modbus RTU interface. | Bus cable disconnected, termination resistor missing, fieldbus master stopped. | Check bus cable wiring, verify baud rate, node ID, and bus termination switches. |
| 0x0081 | Hardware error | Internal hardware or power section self-test failure. | Internal component failure, corrupted internal EEPROM, power section fault. | Internal hardware fault — power cycle unit; if fault persists, return unit for repair or replace inverter. |
| 0x0091 | Parameter memory error | Data corruption or read error on pluggable memory module (EPM). | EPM module not seated properly, memory module defective or incompatible parameter file. | Re-seat EPM module, re-load default parameters or replace memory module. |
Frequently Asked Questions
How do I transfer parameters to a replacement Lenze 16074127 drive?
The inverter uses a pluggable EPM memory module that stores all configuration settings. Remove the EPM module from the faulty drive and insert it into the replacement unit to transfer all parameters without external software.
Which fieldbus communication protocols are integrated into model I55AE155B10V10004S?
The drive includes integrated CANopen and Modbus RTU communication protocols via RS-485 directly onboard.
What control modes are supported by this inverter?
The drive supports V/f characteristic control, sensorless vector control (SLVC), and sensorless control for synchronous motors (SLPSM).
What does a fast blinking red ERR LED indicate?
A fast blinking red ERR LED indicates an internal hardware fault. Power cycle the unit, and if the condition remains, the drive requires repair or replacement.
Can this drive be mounted side-by-side in a cabinet without thermal spacing?
Yes, the IP20 cabinet design supports zero-clearance side-by-side mounting at ambient operating temperatures up to 45 °C without power derating.
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