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| Model | SV040iG5A-4 |
|---|---|
| Type | Inverter |
| Input Frequency | 50/60 Hz |
| IP Rating | IP20 |
| Cooling Method | Forced Air Cooling |
| Enclosure Rating | IP20 |
| Control Method | V/F Control, Sensorless Vector Control |
| Rated Power | 4.0 kW |
| Input Voltage | 380-480 V |
| Output Voltage | 0 - Input Voltage |
| Output Frequency | 0-400 Hz |
| Efficiency | 98% |
| Protection Features | Overcurrent, Overvoltage, Undervoltage, Overheat, Short Circuit |
| Operating Temperature | -10 to 50°C |
| Storage Temperature | -20°C to +65°C |
| Humidity | 5 to 95% RH (Non-condensing) |
| Altitude | Up to 1000 m |
| Communication Interface | RS485 |
Critical safety alerts for preventing serious injury, death, or property damage.
Essential guidelines for safe handling, installation, and operation of the inverter.
Guidelines for safe physical setup, mounting, environmental conditions, and electrical connections.
Explains keypad functions, display indicators, and navigating parameter groups.
How to view real-time data, fault codes, and history.
Configuration for setting frequency via keypad, potentiometer, terminals, and communication.
Methods for controlling inverter operation using keypad, terminals, or communication.
How to set acceleration, deceleration times, and curve patterns.
Methods for controlling motor voltage/frequency and configuring torque boost.
Options for how the inverter stops the motor: Decel, DC Braking, Free Run.
Setting operational frequency limits using Max/Start frequencies and command limits.
Setting up proportional-integral-derivative control loops for process automation.
Procedure for automatically measuring motor parameters for optimal performance.
Configuring the inverter for sensorless vector control of the motor.
How to view current faults, historical data, and diagnostic information.
Settings for motor thermal overload and overload warning/trip protection.
Troubleshooting steps for common inverter fault codes and causes.
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