Lenze 355563 8102_E.6B.22 1.5kW Frequency Inverter
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Product Information
The Lenze 355563 (model 8102_E.6B.22) is a 1.5 kW 3-phase AC frequency inverter within the Lenze 8100 series, designed for speed regulation of three-phase asynchronous motor drives. Operating across an input voltage range of 3x 400 V AC to 480 V AC (tolerating 320 V to 528 V AC), it delivers a rated continuous output current of 3.9 A with an output frequency range of 0 to 480 Hz. The drive supports a 150% overload capacity of 5.85 A for up to 60 seconds during high-torque acceleration ramps. Featuring an integrated brake chopper denoted by the .6B.22 hardware code, it enables direct connection of external braking resistors to manage regenerative load energy during dynamic deceleration. Motor control can be configured using standard linear or quadratic V/f characteristics, or Sensorless Vector Control (SLVC) for enhanced low-speed torque capability.
Control wiring connects directly through built-in terminal blocks for digital and analog I/O, while an integrated option slot accepts modular communication interfaces. Commissioning a replacement unit involves transferring drive parameters and matching installed options. Configuration data can be uploaded and downloaded using Lenze Global Drive Control (GDC) software over a serial link or transferred via the plug-in Lenze 8100 keypad module. Non-volatile internal EEPROM memory maintains dual parameter sets to support rapid cloning during unit swapping. When replacing an existing drive in an active production line, technical support from ABC Industrial Parts can assist with parameter extraction and spare unit preparation.
Drive status and operational diagnostics are displayed through front-panel LED indicators and keypad status registers. A solid green LED indicates normal operational readiness with the power stage enabled, whereas a solid or flashing red LED signals an active fault trip. Specific fault codes such as OC1 (short circuit), OU (DC bus overvoltage), and EEr (EEPROM memory error) provide targeted diagnostic feedback. If an OC1 short-circuit fault occurs immediately upon enabling the drive without a motor connected, or if a persistent red LED accompanies unrecoverable internal EEPROM errors, output stage or control board hardware failure is indicated. Because internal hardware components are not field-serviceable, sourcing a tested exchange drive or sending the unit to ABC Industrial Parts for professional repair provides a fast route back to full production.
Technical Specifications
| Rated Power | 1.5 kW |
| Supply Voltage | 3x 400/480 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Output Current | 3.9 A |
| Maximum Output Current (60s Overload) | 5.85 A |
| Output Voltage | 3x 0-400/480 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f characteristic control / Sensorless Vector Control (SLVC) |
| Integrated Brake Chopper | Yes |
| Protection Rating | IP20 |
Programming and Configuration
Parameter setting and drive setup for the Lenze 355563 are performed using either the plug-in Lenze 8100 operating keypad or the PC-based Global Drive Control (GDC) software tool. Configurable settings include acceleration and deceleration times, maximum frequency limits, V/f curve shape, and motor thermal overload thresholds, alongside switching between standard V/f control and Sensorless Vector Control (SLVC).
The drive utilizes non-volatile EEPROM storage capable of holding dual independent parameter sets. Parameters can be copied directly between inverter units using the plug-in keypad module or saved offline as software project files in GDC for structured backup and rapid parameter restore during equipment replacement.
Communication and System Integration
The Lenze 355563 incorporates screw terminal connections for primary control interface signals, including analog speed reference inputs, programmable digital inputs, and output status relays. Network integration is supported via a dedicated option module slot on the unit.
Communication option modules allow seamless integration into higher-level industrial automation architecture. Options include the 2102IB LECOM module for point-to-point RS232/RS485 serial communication, the 2131IB or EMF2133IB modules for PROFIBUS-DP fieldbus networks, and the 2172IB module for CANopen implementation.
Diagnostics and Status Indication
The front panel features dual diagnostic LEDs that report basic operating states and fault conditions. Additional diagnostic information, active trip memory, and operating variables can be evaluated using the plug-in keypad display or queried over fieldbus using Global Drive Control (GDC) software.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (Operation / Ready) | Green - Solid | Inverter power stage enabled and running normally or in ready state. |
| Red LED (Fault / Trip) | Red - Solid / Flashing | Fault present or drive trip activated. Persistent red LED on unrecoverable memory error indicates internal board failure requiring factory repair or unit replacement. |
Replacement and Spare Part Considerations
When selecting a replacement for a Lenze 355563 unit, confirm that the model designation matches 8102_E.6B.22. The .6B.22 hardware code confirms the presence of the built-in dynamic braking transistor module, which is required if the machine setup uses external braking resistors.
A replacement unit is not plug-and-play. Parameter profiles must be restored using the plug-in operating keypad or Global Drive Control (GDC) software. Any optional communication modules (such as LECOM, PROFIBUS-DP, or CANopen) attached to the original inverter must be transferred to the spare unit, verifying network address DIP switches or baud rate configurations prior to powering up.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OC1 | Short Circuit | Short circuit on motor terminals or output power stage overload. | Short circuit in motor cable, motor winding fault, or acceleration ramp time too short. | Check motor wiring and insulation, verify motor parameters, increase acceleration ramp time. If fault occurs immediately without motor connected, output power transistor is damaged requiring return for repair. |
| OC2 | Ground Fault | Earth fault detection on output motor lines. | Earth fault in motor cable or motor winding, capacitive leakage current. | Inspect cable and motor insulation resistance with megohmmeter. |
| OC5 | Overload during Acceleration | Inverter current limit exceeded during speed acceleration. | Acceleration time too short, mechanical overload, or excessive motor load. | Increase acceleration time (Tir), check mechanical drive system. |
| OU | DC Bus Overvoltage | DC bus intermediate voltage exceeds maximum threshold. | Deceleration ramp time too short, regenerative energy from motor load too high, brake resistor open-circuit. | Increase deceleration ramp time, verify brake chopper and braking resistor connections. |
| LU | DC Bus Undervoltage | DC bus intermediate voltage below minimum operating limit. | Mains supply failure, supply voltage too low, line phase missing. | Check mains voltage input, line fuses, and main contactor. |
| OH | Heatsink Overtemperature | Inverter power module heatsink temperature exceeded allowable threshold. | Inadequate ventilation, clogged heatsink cooling fins, ambient temperature too high, fan failure. | Clean heatsink fins, check cabinet ventilation, verify cooling fan operation. Allow unit to cool down. |
| OH4 | Motor PTC Overtemperature | Motor thermal sensor / PTC circuit tripped. | Motor thermal overload, blocked motor cooling, improper PTC connections. | Check motor cooling fan, inspect motor load condition, check PTC thermistor wiring. |
| OL | Motor Overload (I2t) | Calculated motor thermal load (I2t monitoring) exceeded threshold. | Continuous motor operation under excessive load at low speed. | Reduce motor load, adjust V/f characteristic or thermal monitoring settings. |
| LP1 | Line Phase Loss | Failure of one supply voltage phase. | Blown supply fuse, loose line terminal, unstable AC line network. | Check input fuses and line voltage symmetry across all three supply phases. |
| EEr | EEPROM Memory Error | Internal EEPROM checksum or read/write error. | Internal memory corruption, hardware fault on control board. | Internal hardware fault — reload factory default parameters. If error persists, control board failure requires returning unit for repair or replacing drive. |
| CE0 | LECOM Communication Fault | Loss of communication over serial LECOM line. | Disconnected communication cable, wrong baud rate, timeout condition. | Check serial connection, shielding, baud rate settings, and host controller communication status. |
| P12 | Parameter Set Error | Invalid parameter structure or incomplete parameter set load. | Parameter transfer interrupted or incompatible software version. | Re-download complete parameter set into inverter or perform factory reset. |
Frequently Asked Questions
How do I transfer parameters from an existing Lenze 355563 to a spare drive?
Parameters can be cloned using the plug-in Lenze 8100 operating keypad or uploaded and downloaded using Global Drive Control (GDC) software via a LECOM module connection.
What does the .6B.22 hardware designation mean on model 8102_E.6B.22?
The .6B.22 designation indicates that the frequency inverter includes an integrated dynamic brake chopper circuit for connecting external braking resistors.
What indicates an internal hardware failure on the Lenze 355563 drive?
An OC1 fault that triggers immediately upon drive enable with no motor connected, or an EEr EEPROM memory fault that persists after reloading factory defaults, indicates output stage or control board hardware damage.
Which communication modules can be installed on the Lenze 355563?
The drive option slot accepts the 2102IB LECOM module for RS232/RS485 serial communications, the 2131IB or EMF2133IB modules for PROFIBUS-DP, and the 2172IB module for CANopen.
How should an OU fault code be addressed during drive deceleration?
An OU fault indicates DC bus overvoltage caused by motor regeneration. Increase the deceleration ramp time (Tir) and check the operation and wiring of the external brake resistor and internal brake chopper.
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