Lenze E84AVSCE3714SX0 8400 StateLine C Frequency Inverter
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Product Information
The Lenze E84AVSCE3714SX0 is a panel-mounted 0.37 kW frequency inverter from the 8400 StateLine C series within the Lenze 8400 Inverter Series. Designed for variable speed control and single-axis motion, it operates from a 3-phase supply voltage range of 320 V AC to 528 V AC (400 to 480 V AC nominal), providing an output current rating of 1.3 A at 400 V AC and 1.1 A at 480 V AC. Motor control is executed over an output frequency range of 0 to 500 Hz using linear or square-law V/f characteristic control or Sensorless Vector Control (SLVC). The inverter integrates a Safe Torque Off (STO) functional safety input to fulfill machine safety requirements without extra contactors. It is frequently applied in conveyor systems, packaging machinery, intralogistics, pumps, fans, and process automation drives.
Control wiring integrates via 5 digital inputs, 1 digital output, 2 analog inputs, and 1 analog output, paired with an onboard CANopen system bus interface operating up to 1 Mbit/s. For broader industrial networks, the unit contains a communication slot accepting optional MCI modules for PROFIBUS (E84AYCPM), PROFINET (E84AYCER), EtherCAT (E84AYCEI), or EtherNet/IP (E84AYCEO). Commissioning a replacement unit is straightforward due to the pluggable Lenze E84AYM200 memory module; moving the existing EEPROM memory card to the replacement unit transfers all configuration settings without requiring PC tools or software re-commissioning. When software adjustments or diagnostic sessions are required, Lenze EASY Starter or Lenze Engineer tools connect via USB adapter or through the optional Keypad XT (E84AVTDE) module. ABC Industrial Parts can assist maintenance teams with spare unit preparation and configuration support.
Operational state monitoring and field diagnostics rely on visual LED indicators on the front panel alongside software readout capabilities. Key diagnostics display drive status via the DRV-READY LED and CAN bus communication states via CAN-RUN and CAN-ERR LEDs. Specific fault conditions like DC bus undervoltage (LU), overvoltage (OU), short circuit (OC1), earth fault (OC2), or heatsink overtemperature (OH) can be evaluated via connected software or the Keypad XT display to verify line supplies, motor cables, and cooling conditions. When internal micro-controller or electronic hardware failures occur—such as Fault 0x0010—the unit cannot be serviced in the field, and procuring a fully tested replacement or repair through ABC Industrial Parts provides the fastest route back to operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | E84AVSCE3714SX0 |
| Model / Type | 8400 StateLine C |
| Component Type | Frequency Inverter |
| Rated Power | 0.37 kW |
| Nominal Supply Voltage | 400 - 480 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Output Current (400V) | 1.3 A |
| Rated Output Current (480V) | 1.1 A |
| Output Frequency Range | 0 - 500 Hz |
| Control Methods | V/f Characteristic Control, Sensorless Vector Control (SLVC) |
| Digital I/O | 5 Inputs / 1 Output |
| Analog I/O | 2 Inputs / 1 Output |
| Integrated Bus Interface | CANopen |
| Integrated Safety | Safe Torque Off (STO) |
Programming and Configuration
Engineering and setup for the Lenze E84AVSCE3714SX0 frequency inverter are supported using Lenze EASY Starter and Lenze Engineer software suites. Connection from a PC is established using a dedicated USB diagnostic adapter or over the fieldbus interface, allowing real-time parameter configuration, drive tuning, and operational monitoring.
Parameter management relies on the pluggable Lenze Memory Module E84AYM200. This EEPROM card stores complete parameter sets, motor profiles, and application settings. Swapping this card between drives enables fast parameter replication and zero-software hardware replacement during maintenance routines.
Communication and System Integration
The E84AVSCE3714SX0 drive features an onboard CANopen system bus interface capable of communication speeds up to 1 Mbit/s. This integrated port enables direct network connection for velocity control, status monitoring, and distributed automation topologies.
For integration into other automation networks, the inverter features a modular MCI slot that accepts optional communication cards. Supported option modules include E84AYCPM (PROFIBUS), E84AYCER (PROFINET), E84AYCEI (EtherCAT), and E84AYCEO (EtherNet/IP).
Diagnostics and Status Indication
Drive diagnostic procedures are supported by front-panel LEDs, clear-text readout on the optional Keypad XT (E84AVTDE), or direct software diagnostics using Lenze EASY Starter over a USB connection. These diagnostic pathways allow rapid identification of power, communication, and motor control faults.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready (DRV-READY) | Green / Red - Solid Green / Flashing Green / Solid Red / Flashing Red / Off | Green ON = Ready for operation; Blinking Green = Drive active; Red ON = Fault active; Blinking Red = Warning active; Off = Power supply failure or hardware fault |
| CAN-RUN | Green - Solid Green / Flashing Green / Single Flash | Green ON = CANopen operational; Blinking Green = CANopen pre-operational; Single flash = CANopen stopped |
| CAN-ERR | Red - Solid Red / Flashing Red / Off | Red ON = Bus off / CAN error; Blinking Red = CAN controller error / frame errors; Off = CAN communication normal |
Replacement and Spare Part Considerations
When replacing an E84AVSCE3714SX0 inverter, verify that the replacement unit matches the required power rating (0.37 kW) and mains supply voltage range (320 to 528 V AC). Although the 8400 StateLine C series is in phase-out status, direct replacement with the same part number preserves panel mounting configurations and control wiring layout. For new system installations, Lenze recommends the i550 cabinet frequency inverter family as the successor line.
Commissioning a replacement drive does not require manual parameter programming if the original E84AYM200 memory module is functional. Transferring the EEPROM card from the original unit directly to the spare drive transfers all parameters. Ensure any installed MCI option card is also transferred to retain identical fieldbus protocol functionality.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| LU | DC bus undervoltage | DC bus voltage has fallen below the threshold level. | Mains voltage too low, line phase loss, power interruption. | Check supply mains voltage and supply circuit cabling. |
| OU | DC bus overvoltage | DC bus voltage exceeded upper limit. | Excessive regenerative energy during deceleration, deceleration ramp too short, brake resistor open/missing. | Extend deceleration time, connect brake resistor, check brake chopper operation. |
| OC1 | Short circuit | Short circuit at the motor output terminals. | Short circuit in motor cable or motor winding, inter-phase short circuit. | Check motor and motor cable insulation and connections. |
| OC2 | Earth fault | Earth fault / ground fault detected at output. | Ground fault in motor winding or motor cable, excessive cable capacity. | Check insulation resistance of motor line and motor against PE. |
| OC5 | Overcurrent during acceleration | Output current exceeded maximum instantaneous threshold during motor acceleration. | Acceleration time too short, mechanical overload or block, incorrect motor parameter setup. | Increase acceleration time, check motor loading and mechanical drive mechanism. |
| OH | Heatsink overtemperature | Inverter heatsink temperature exceeded maximum allowed limit. | Inadequate cooling, fan blocked or defective, ambient air flow restricted. | Clean heatsink fins, check cabinet ventilation and internal fan operation. |
| OH4 | Motor overtemperature | Motor temperature sensor (PTC/TK) detected excessive motor thermal load. | Continuous motor overload, insufficient motor self-cooling at low speed. | Check motor load, check external forced cooling fan if installed. |
| CE0 | Communication fault | Communication failure on integrated CANopen system bus or MCI fieldbus module. | Cable interruption, incorrect node ID, bus termination missing or incorrect baud rate. | Check bus wiring, termination resistors, shield grounding, and master connection. |
| Fault 0x0010 | System hardware fault | Internal electronic board failure or micro-controller hardware fault. | Internal component degradation, hardware error. | Internal hardware fault — power cycle drive; if persistent, return unit for repair or replace. |
Frequently Asked Questions
How do I transfer parameters to a replacement Lenze E84AVSCE3714SX0 inverter?
Parameter transfer is accomplished by moving the pluggable Lenze E84AYM200 memory module from the original drive to the replacement unit. This transfers all stored drive configurations instantly without needing PC tools.
Which fieldbus protocols can be used with this drive?
The E84AVSCE3714SX0 features an integrated CANopen system bus interface. Optional support for PROFIBUS (E84AYCPM), PROFINET (E84AYCER), EtherCAT (E84AYCEI), or EtherNet/IP (E84AYCEO) is available by installing an MCI module in the expansion slot.
What does a solid red DRV-READY LED indicate on the front panel?
A solid red DRV-READY LED indicates an active drive fault condition. Diagnostic fault codes can be read using Lenze EASY Starter software or the optional Keypad XT display to identify the specific error.
What programming software is compatible with the Lenze 8400 StateLine C series?
Drive configuration, parameter adjustment, and diagnostics are performed using Lenze EASY Starter or Lenze Engineer software connected via a USB diagnostic adapter.
What is the purpose of the integrated Safe Torque Off (STO) feature?
The Safe Torque Off (STO) functional safety input reliably prevents torque generation at the motor output. This enables functional safety compliance without requiring external safety contactors in the control cabinet.
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