| Error Code | Meaning | Immediate Action | Manual Page Ref | | :--- | :--- | :--- | :--- | | | Fan lock | Turn off inverter, check if fan is obstructed | Page 32 | | Fault 03 | Battery voltage too high | Disconnect solar array immediately; test battery health | Page 33 | | Fault 05 | Output short circuit | Unplug all loads; test each appliance individually | Page 34 | | Fault 07 | Overload >120% for 10 sec | Reduce loads; restart after 1 minute | Page 34 | | Warning 04 | Low battery | Charge battery; check Program 12 setting | Page 30 | | Warning 06 | No utility input | Check circuit breaker at mains panel | Page 30 |
JTE inverters are typically designed for a three-phase power supply. If you have a single-phase power source, do not attempt to force the connection. You should contact your supplier or a qualified technician to discuss alternatives.
The JTE Inverter Manual provides comprehensive information on the installation, operation, and maintenance of the JTE Inverter. By following the guidelines and specifications outlined in the manual, users can ensure safe and efficient operation of the device. Regular maintenance and monitoring can help prevent faults and ensure optimal performance.
While this guide is comprehensive, for precise technical specifications, complete parameter tables, and model-specific wiring diagrams, you'll want to consult the manufacturer's official documentation. The most complete and freely available resource for the JTE280 series is the original user manual from the manufacturer or trusted industrial automation websites.
To keep your JTE inverter operating at peak performance for years to come, establish a regular maintenance schedule:
Shows real-time data including frequency (Hz), output current (A), motor revolution (R/min), and DC bus voltage.
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| Code | Name | Likely Cause | Manual Solution | |------|------|--------------|------------------| | | Overcurrent during acceleration | Short circuit in motor wiring; Accel time too short | Increase P02.00; Check U/V/W insulation | | E-02 | Overcurrent during deceleration | Regenerative energy too high | Increase decel time (P02.01); Add braking resistor | | E-03 | Overvoltage | DC bus > 400V (for 220V models) | Check supply voltage; Add braking unit | | E-04 | Undervoltage | Input power dip | Check R, S, T terminals for loose connection | | E-05 | Overload (OL) | Motor draws > rated current for >60s | Check mechanical binding; Increase motor rated current (P01.01) carefully | | E-14 | Module overheat | Fan failure; Ambient temp >40°C | Clean heatsink; Replace cooling fan |
Refer to this table if the inverter shows an error code or operates incorrectly: Fault Code Potential Cause Acceleration too fast / Output short Increase acceleration time / Check motor wiring OV (Overvoltage) Deceleration too fast Increase deceleration time / Add braking unit UV (Undervoltage) Input voltage too low Check input power source OH (Overheat) Poor ventilation / Overload Clean heat sink / Reduce load OL (Overload) Motor overloaded Reduce load / Check motor parameters Conclusion
How to clear common faults like OL1 (Motor Overload) or LU (Under Voltage) . Brake Resistor: Correct pins for the + and PB terminals.
The core of any is its parameter table—a comprehensive list of function codes that dictate device behavior.
