What does No Motor Trip mean on an LSIS Inverter?
- PpetermercerSep 8, 2025
The 'No Motor Trip' message on your LSIS Inverter indicates that the motor is not connected during inverter operation. This operates when parameter Pr.31 is set to 1.

What does No Motor Trip mean on an LSIS Inverter?
The 'No Motor Trip' message on your LSIS Inverter indicates that the motor is not connected during inverter operation. This operates when parameter Pr.31 is set to 1.
What does In Phase Open mean on an LSIS Inverter?
The 'In Phase Open' message on your LSIS Inverter indicates that a 3-phase inverter input has one or more phases in an open circuit condition. This operates only when bit 2 of parameter Pr.05 is set to 1.
What does Over Load mean on an LSIS Inverter?
The 'Over Load' message on your LSIS Inverter indicates that the motor overload trip has been activated because the actual load level exceeds the set level. This function operates when parameter Pr.20 is set to a value other than 0.
What does Fan Trip mean on an LSIS Inverter?
The 'Fan Trip' message on your LSIS Inverter indicates that an error has been detected in the cooling fan. To activate fan trip for models below 22kW capacity, set parameter Pr.79 to 0.
What does Lost Command mean on an LSIS Inverter?
The 'Lost Command' message on your LSIS Inverter indicates that a frequency or operation command error has been detected during inverter operation by controllers other than the keypad.
What does External Trip mean on an LSIS Inverter?
The 'External Trip' message on your LSIS Inverter indicates that an external fault signal is being provided by the multi-function terminal.
What does Under Load mean on an LSIS Inverter?
The 'Under Load' message on your LSIS Inverter indicates that the motor underload trip is activated because the actual load level is less than the set level. This operates when parameter Pr.27 is set to a value other than 0.
What does E-Thermal mean on an LSIS Inverter?
The 'E-Thermal' message on your LSIS Inverter is displayed based on inverse time-limit thermal characteristics to prevent motor overheating. This operates when parameter Pr.40 is set to a value other than 0.
What does Low Voltage2 mean on an LSIS Inverter?
The 'Low Voltage2' message on your LSIS Inverter means that the internal DC circuit voltage is less than the specified value during inverter operation.
Why does my LSIS Inverter display Inverter OLT?
The 'Inverter OLT' message on your LSIS Inverter means the inverter has been protected from overload and resultant overheating, based on inverse time-limit thermal characteristics.
| Brand | LSIS |
|---|---|
| Model | LSLV-S100 |
| Category | Controller |
| Language | English |
Details on identifying the S100 inverter product name, including model and specifications on the rating plate.
Details ideal operating and installation conditions, including ambient temperature, humidity, and altitude.
Provides guidelines for choosing an installation location and preparing the site, emphasizing ventilation.
Information on selecting appropriate power and signal cables for safe and reliable operation.
Procedures for mounting the inverter on a wall or inside a panel, ensuring sufficient clearance.
Instructions for opening covers and completing power and control terminal block connections, with safety precautions.
Instructions for removing covers and installing the ground connection for the inverter and motor.
Shows the terminal layout and descriptions for making power terminal wiring connections.
Illustrates the detailed layout of control wiring terminals and control board switches.
A checklist to verify safe and correct installation of the inverter, covering location, wiring, and connections.
Instructions for testing the inverter after installation, including verifying motor rotation and acceleration/deceleration.
Describes the keypad layout, display components, and operation keys for basic inverter functions.
Details the names and functions of the keypad's operation keys for controlling the inverter.
Lists the function groups under Parameter mode for 0.4-22kW models, explaining their purpose.
Explains keypad navigation for groups, codes, and setting parameter values.
Instructions on how to set or modify parameter values for different codes, covering frequency, voltage, and speed.
Protects the motor from overheating damage using electronic thermal prevention (ETH).
Warns or trips when the motor reaches an overload state based on rated current.
Prevents motor stall caused by overloads, adjusting frequency automatically.
Protects the inverter against malfunction due to external signals or internal circuit issues.
Prevents overcurrent induced at inverter inputs due to an open-phase in the input power supply.
Protects the inverter from damage when input current exceeds the rated current.
Selects inverter operation for situations when the speed command is lost.
Addresses fault trips and warnings related to underload conditions.
Lists types of faults and warnings that can occur during S100 inverter usage.
Lists protection function group parameters.
Explains how to read warning messages and understand fault conditions like Level, Latch, and Fatal.
Lists protection functions for output current and input voltage, detailing keypad display, type, and description.
Displays warning messages for motor overload, underload, lost command, and fan warning.
Provides a table of possible causes and remedies for fault trips and warnings.
Addresses various other faults not classified as trips or warnings, suggesting causes and remedies.
Details input and output specifications for various inverter models, including applied motor, rated output, and rated input.