Why does my LSIS DC Drives show Inverter OLT?
The LSIS DC Drives might display an Inverter OLT error if the load is greater than the rated motor capacity; replace the motor and inverter with models that have increased capacity. Additionally, a torque boost level that is too high can cause this; reduce the torque boost level.
What to do if LSIS DC Drives display Low Voltage?
If your LSIS DC Drives show a low voltage error, first determine if the input voltage is below the specified value. It could also be that a load greater than the power capacity is connected to the system; in this case, increase the power capacity. Finally, a faulty magnetic contactor connected to the power source can cause this; replace the magnetic contactor.
Why is the IP address of my LSIS SV-iS7 communication module changing randomly?
The communication module’s IP address might be changing randomly because a PLC is configured to forcibly change it. Check the PLC configuration software to see if IP changes by the PLC are allowed. If you do not want the communication module IP to be changed, set the PLC software to use the IP address set at the communication module.
How to troubleshoot E-Thermal errors in LSIS DC Drives?
An E-Thermal error in LSIS DC Drives indicates overheating. This can occur if the motor has overheated, so reduce the load or operation frequency. The inverter load might be greater than the rated capacity, necessitating a replacement with a higher-capacity model. Also, the set value for electronic thermal protection may be too low, so set an appropriate electronic thermal level. Finally, if the inverter has been operated at low speed for a long time, replace the motor with one that supplies extra power to the cooling fan.
What causes Over Voltage in LSIS DC Drives and how to fix it?
An over voltage error in LSIS DC Drives can occur if the deceleration time is too short for the load inertia; increasing the acceleration time may resolve this. Another cause is a generative load at the inverter output, which can be addressed by using a braking unit. Also, verify that the input voltage is within the specified range, as a high input voltage can trigger this error.
Why is my LSIS DC Drives showing Over Current1?
The LSIS DC Drives might display an overcurrent error if the acceleration/deceleration time is too short relative to the load inertia. Try increasing the acceleration/deceleration time. It could also be that the inverter load is greater than its rated capacity, requiring you to replace the inverter with a model of increased capacity. Also, check if the inverter supplied an output while the motor was idling and operate the inverter after the motor has stopped or use the speed search function (CON-70). Finally, the mechanical brake of the motor might be operating too fast; in that case, check the mechanical brake.
What to do if my LSIS DC Drives show Over Load?
If your LSIS DC Drives indicate an overload, it could be due to the load exceeding the motor's rated capacity. Ensure the motor and inverter have appropriate capacity ratings. Alternatively, the overload trip level (PRT-21) might be set too low; in that case, increase its value.
How to troubleshoot an LSIS DC Drives that is not turning on?
If your LSIS DC Drive is off, first ensure the power supply is energized. Check if the communication board is installed on the inverter and verify that the inverter is turned on.
What to do if LSIS DC Drives are flickering with 200ms?
If your LSIS DC Drive is flickering with a 200ms interval, it suggests an abnormal interface communication issue between the communication board and the inverter. Make sure the communication cable and power supply cable are separated. Turn off the inverter, and then turn it back on.
Why is the red light on my LSIS DC Drives?
If the LSIS DC Drive shows a constant red light, it indicates that communication is not established. Check if the communication cable and power supply cable are separated. Power cycle the inverter (turn it off and then on again).
General| Enclosure Rating | IP20 |
|---|---|
| Output Frequency | 0 ~ 400Hz |
| Frequency Range | 0.1 ~ 400 Hz |
| Power Range | 0.4kW |
| Overload Capacity | 150% for 60 seconds |
| Braking Unit | Built-in |
| Control Method | V/F control, Sensorless Vector Control |
| Protection Functions | Overcurrent, Overvoltage, Undervoltage, Overheat, Short circuit |
| Communication | RS-485 |
| Cooling Method | Forced air cooling |
| Ambient Temperature | -10°C to +40°C |
| Storage Temperature | -20°C to +65°C |
| Humidity | 5% ~ 95% RH (non-condensing) |
| Altitude | Up to 1000m |
Highlights potential risks of death or serious injury from incorrect operation.
Highlights potential risks of injury or damage to property from incorrect operation.
Covers general procedures and checks required before installing the inverter.
Instructions and checklist for correctly wiring the inverter's main and control circuits.
Introduction to operating the inverter using the standard keypad interface.
Overview of fundamental functions and operations of the inverter.
Guide to identifying and resolving common inverter issues and performing checks.
Common troubleshooting steps for issues like Over Load, Under Load, and Over Current.
Information on the inverter's safety features and compliance with safety standards.
Explanation of the STO safety function and its wiring.
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