How to fix RS-485 communication error in LSIS Inverter?
To resolve an RS-485 communication error, ensure the converter has electric power. Verify that the master is polling the inverter. Check the wiring for Ground Fault (GF) and correct it according to section '11.3 Installation'. Set the correct value in accordance with '11.3 Installation'. Revise the User Program (Note1). Also, consult the converter manual for further guidance.
General| Rated Power (kW) | 2.2 |
|---|---|
| Rated Power (HP) | 3 |
| Input Voltage | 380-480V |
| Input Frequency | 50/60Hz |
| Rated Output Current (A) | 5.0 |
| Braking Unit | Built-in |
| Control Method | V/F control, Sensorless vector control |
| Cooling Method | Forced air cooling |
| Enclosure Rating | IP20 |
| Output Frequency | 0-400Hz |
| Protection Functions | Overcurrent, Overvoltage, Undervoltage, Overheat, Ground fault |
| Efficiency | 97% |
| Operating Temperature | -10 ~ 50°C |
| Storage Temperature | -20 ~ 65°C |
| Humidity | 5 ~ 95% RH (non-condensing) |
| Altitude | Up to 1000m |
| Communication Interface | RS485 (Modbus RTU) |
Improper operation may result in serious personal injury or death.
Improper operation may result in slight to medium personal injury or property damage.
Safety rules for wiring, inspections, and waiting periods after power disconnection.
Safety rules for handling cables, installing on non-flammable surfaces, and avoiding foreign matter.
Guidelines for safely handling, installing, and grounding the inverter.
Critical precautions for connecting power supply, motor, and control signals correctly.
Safety and environmental guidelines for inverter installation, including handling, vibration, temperature, and heat.
Precautions for installing multiple inverters, fastening, and heat ventilation.
Explanation of keypad buttons, display indicators, and basic navigation.
Alpha-numeric display, moving between parameter groups.
How to navigate between Drive, Function 1, Function 2, and I/O parameter groups.
Procedures for changing parameter codes within a group and jumping between codes.
Detailed steps for setting parameters like Accel/Decel time, frequency, and monitoring operation status.
Various methods for setting frequency, including keypad, analog inputs, and communication.
Detailed setup for various frequency setting methods (keypad, analog, RS485).
Setting operation commands via keypad, terminals, or RS485 communication.
Configuring acceleration, deceleration times, patterns, and disable functions.
Setting up Linear, Square, and User V/F patterns for voltage/frequency control.
Settings for DC brake operation during starting and stopping.
Configuring and tuning PID control for precise process regulation.
Procedure for automatically measuring motor parameters for optimal performance.
Configuring and requirements for Sensorless Vector Control.
Managing inverter parameters via remote keypad, including reading, writing, initializing, and locking.
Monitoring current faults and fault history.
Configuring electronic thermal protection to prevent motor overheating.
Setting overload warning levels and trip conditions.
Setting up stall prevention to protect the motor from stalling.
Activating protection against output phase loss.
Mapping keypad fault displays to protective functions and their descriptions.
Solutions and corrective actions for various inverter fault conditions.
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