Lenze 333665 8101MP.1.A Drive 8100 Frequency Inverter
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Product Information
The Lenze 333665 (model 8101MP.1.A) is a compact 0.37 kW frequency inverter from the Lenze 8100 Series, designed for speed control of standard three-phase AC motors. Operating from a single-phase 230 V AC supply across an operational range of 180 to 264 V AC, it converts single-phase power into standard three-phase 230 V AC output with a continuous current rating of 2.1 A and an output frequency range from 0 to 480 Hz. Featuring linear or quadratic V/f characteristic control, adjustable acceleration and deceleration ramps, slip compensation, flying restart capability, and DC injection braking, this IP20 panel-mount drive delivers precise motor performance in packaging lines, commercial pumps, ventilation blowers, and small conveyor systems.
Connecting and integrating the unit into control cabinets is straightforward using onboard screw terminals that house four programmable digital inputs and one flexible analog input accepting 0 to 10 V DC or 0/4 to 20 mA setpoints. Operational fieldbus connectivity for RS-232, RS-485, or optical fiber communication can be added using optional plug-in LECOM modules. A spare drive is rarely plug-and-run; drive parameters are stored in internal non-volatile EEPROM and must be transferred to the replacement unit using either the plug-in operating keypad or Lenze Global Drive Control (GDC) software. ABC Industrial Parts can assist in sourcing ready-to-install replacement units and supporting parameter extraction from faulty drives or memory modules.
Diagnostic monitoring is provided directly on the front panel by dual status LEDs, where a green READY light confirms operational availability and a red TRIP/FAULT indicator signals an active fault condition. Detailed fault codes, including supply undervoltage (LU), overvoltage (OU), overcurrent (OC1), earth faults (OC2), motor overtemperature (OH4), and memory errors (EEr), are accessible through the plug-in keypad module or the fault history register in Lenze GDC software. Initial troubleshooting should include checking line supply voltage, verifying motor insulation with a megohmmeter, and checking cooling airflow across the heatsink. If an internal hardware failure or unrecoverable EEPROM checksum error occurs, board-level repairs or a tested exchange drive from ABC Industrial Parts offers a fast return to operational service.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 333665 |
| Model / Type | 8101MP.1.A |
| Component Type | Frequency Inverter |
| Product Family | 8100 Series |
| Rated Power | 0.37 kW |
| Supply Voltage | 230 V AC (1-phase) |
| Supply Voltage Range | 180 - 264 V AC |
| Output Voltage | 0 - 230 V AC (3-phase) |
| Continuous Output Current | 2.1 A |
| Output Frequency Range | 0 - 480 Hz |
| Control Method | V/f Characteristic Control |
| Digital Inputs | 4 |
| Analog Inputs | 1 (0-10 V DC / 0/4-20 mA) |
| Enclosure Rating | IP20 |
| Mounting Type | Panel Mount |
Programming and Configuration
Parameterization for the Lenze 333665 is managed either directly through the optional plug-in keypad operating module or via Lenze Global Drive Control (GDC) software. Internal parameter storage relies on non-volatile EEPROM memory, securing all operating profiles, acceleration and deceleration ramp times, slip compensation adjustments, and motor protection parameters even during prolonged power loss.
Commissioning a replacement unit requires cloning parameter sets between drives. Using the plug-in keypad operating module, saved parameter profiles can be copied from a donor drive and loaded into the replacement unit without requiring PC-based engineering tools. When using Lenze GDC software over a LECOM communication link, complete parameter files can be saved, backed up, and uploaded directly to ensure exact duplication of motor control settings.
Communication and System Integration
Control terminal connections on the Lenze 8101MP.1.A frequency inverter are established via onboard screw terminals. The physical terminal layout includes four programmable digital inputs for run commands, direction control, and preset selection, alongside one analog input configured for frequency setpoints via 0 to 10 V DC voltage signals or 0/4 to 20 mA current loops.
Extended network connectivity is provided by optional plug-in LECOM communication modules, supporting point-to-point RS-232, multi-drop RS-485, or noise-immune optical fiber physical interfaces. These modules allow integration into fieldbus networks and direct connection to host PLCs or PC workstations running Lenze Global Drive Control software.
Diagnostics and Status Indication
Dual front-panel LEDs provide immediate visual status of drive health. A solid green READY LED indicates normal operating status and drive readiness, while a solid or flashing red TRIP/FAULT LED flags an active error condition that requires operator attention.
Detailed diagnostic interrogation is conducted via the optional plug-in keypad module, which displays real-time trip codes on its screen, or through Lenze GDC software, which can read out the drive's internal fault history register for root-cause analysis.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| READY | Green - Solid | Normal operation / drive ready |
| TRIP / FAULT | Red - Solid / Flashing | Drive error / fault condition active |
Replacement and Spare Part Considerations
Replacing a legacy Lenze 333665 (8101MP.1.A) drive with a direct drop-in spare prevents mechanical panel modifications and eliminates rewiring or full system redesigns. The compact IP20 enclosure mounts directly onto existing cabinet subpanels with identical mounting pitch and power terminal arrangements.
Before energizing a newly installed spare, line voltage must be confirmed within 180 to 264 V AC. Drive parameters must be loaded into the non-volatile EEPROM memory from a recorded backup or cloned from the old unit via the plug-in keypad operating module. Verifying that motor parameters match the connected motor nameplate prevents immediate trip events such as OC5 or It thermal overloads.
For broader machinery modernization projects where legacy replacement is no longer desired, successor inverter models such as the Lenze 8200 Vector or Lenze i510 cabinet drives can be considered, though control terminal wiring and parameter structures will require adapting.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| LU | Undervoltage | DC bus voltage dropped below minimum threshold during operation. | Supply mains voltage too low, mains phase failure, power supply interruption. | Check mains voltage, check supply fuses, verify input wiring. |
| OU | Overvoltage | DC bus voltage exceeded maximum allowable threshold. | Deceleration ramp time too short, regenerative feedback from motor load, excessive supply voltage. | Extend deceleration time (Tdec), install or check brake resistor if supported, verify mains voltage. |
| OC1 | Short Circuit / Overcurrent | Instantaneous output current threshold exceeded due to short circuit or severe overload. | Short circuit in motor cable, phase-to-phase short, motor winding fault, acceleration time too short. | Check motor and motor cable for short circuits/earth insulation, check motor sizing, extend acceleration time. |
| OC2 | Earth Fault | Ground fault detected on inverter output. | Earth fault in motor leads, insulation breakdown in motor windings, excessive cable length. | Check motor cable and motor insulation resistance with megohmmeter, verify earth grounding. |
| OC5 | Overload Operating Current | Inverter output current continuously excessive. | Mechanical overload, motor blocked, incorrect motor parameters programmed. | Check driven machine for mechanical binding/jamming, verify motor parameter settings against nameplate. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature exceeded maximum limit. | Insufficient cooling airflow, ambient temperature too high, cooling fan failure, excessive continuous load. | Clean heatsink cooling fins, check cabinet ventilation, lower ambient temperature, reduce inverter load. |
| OH4 | Motor Overtemperature | Motor temperature sensor trip or PTC sensor activated. | Motor thermal overload, cooling fan failure on motor, PTC sensor triggered. | Allow motor to cool down, check motor load and cooling fan, inspect PTC sensor connection. |
| It | Ixt Thermal Overload | Calculated motor/inverter thermal overload (I²t monitoring trip). | Continuous operation above rated current at low motor speeds. | Reduce continuous motor current, check motor dimensioning and V/f settings. |
| EEr | EEPROM Fault | Data checksum error or read/write failure in internal EEPROM memory. | Internal memory failure, electrical noise disturbance during parameter save operation, board-level failure. | Internal hardware fault — perform factory reset, re-commission parameter settings; if fault persists, return unit for repair or replace drive. |
| Pr | Parameter Error | Invalid parameter set or incompatible parameter data loaded. | Incomplete parameter transfer, corrupted parameter set. | Reload valid parameter set, restore factory defaults and reconfigure. |
| CE0 | Communication Error | Communication failure between inverter and optional fieldbus/LECOM module. | Loose connector, fieldbus timeout, excessive bus interference. | Check interface module seating, verify cabling, check communication timeout parameters. |
Frequently Asked Questions
How do I transfer parameters to a replacement Lenze 333665 drive?
Parameters stored in non-volatile EEPROM can be transferred using the plug-in keypad operating module or via Lenze Global Drive Control (GDC) software over a LECOM interface module.
What causes an EEr fault code on the Lenze 8101MP.1.A inverter?
An EEr code indicates an EEPROM fault, caused by internal memory failure or data corruption during parameter save operations. A factory reset can be attempted, but persistent errors indicate internal hardware damage requiring repair or unit replacement.
Can the Lenze 333665 drive run off a single-phase 230 V AC power supply?
Yes, the drive operates on a single-phase 230 V AC input (180 to 264 V AC range) and delivers standard three-phase 230 V AC output up to 2.1 A continuous current.
What does a flashing red TRIP LED indicate on the inverter?
A flashing or solid red TRIP/FAULT LED indicates an active fault condition, such as undervoltage, overcurrent, or thermal overload. Fault details can be read using the plug-in keypad module or GDC software.
Which communication interfaces are supported by the 8100 MP series drive?
Communication is supported via optional plug-in LECOM modules using RS-232, RS-485, or optical fiber interfaces for connection to host systems and PC tools.
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Data backup and recovery
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Specific firmware and hardware versions
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Disclaimer:
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