Why does my LSIS Inverter Drive display Under Load?
The LSIS Inverter Drive displays an underload message when the motor underload trip is activated, indicating that the actual load level is less than the configured level. This function operates when parameter Pr.27 is set to a value other than 0.
General| Altitude | Up to 1000m without derating |
|---|---|
| Input Voltage | 200-240V, 380-480V |
| Power Range | 0.4 kW to 22 kW |
| Output Frequency | 0.1 ~ 400Hz |
| Control Method | V/F Control, Sensorless Vector Control |
| Communication Options | RS485 |
| Protection Features | Overcurrent, Overvoltage, Undervoltage, Overheat, Short Circuit, Ground Fault |
| Overload Capacity | 150% for 60 seconds |
| Braking Unit | Built-in |
| Cooling Method | Forced Air Cooling |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -20°C ~ +65°C |
| Humidity | 5% to 90% RH (non-condensing) |
Explains symbols used in the manual for hazard identification and safety precautions.
Provides general instructions and precautions for safe operation and handling of the inverter.
Details how to identify the G100 inverter based on its manufacturing groups and specifications.
Outlines the ideal environmental and installation conditions for optimal inverter lifespan and reliability.
Provides guidance on selecting appropriate power and signal cables for safe and reliable product operation.
Presents a step-by-step sequence for the physical and electrical installation of the inverter.
Describes the procedures for mounting the inverter on a wall or inside a panel, ensuring proper clearance.
Details the methods for connecting power and control terminal wiring to the inverter, emphasizing safety precautions.
Lists essential items to check after installation to ensure the inverter is safely and correctly installed.
Provides instructions for performing operational tests on the inverter after installation and configuration.
Describes the layout and functions of the inverter's keypad, including the display and operation keys.
Guides users on navigating between groups and codes, and selecting/configuring functions using the keypad.
Demonstrates practical examples of configuring common inverter operations like acceleration time and frequency references.
Explains various methods for setting and modifying the inverter's frequency reference.
Details how to select different devices like keypad, terminals, or RS-485 for command input.
Covers methods for configuring acceleration and deceleration times based on maximum or operation frequency.
Explains how to configure output voltages and patterns for target output frequency using V/F control.
Details a safety feature that allows operation commands only in safe mode, useful for careful control via multi-function terminals.
Covers PID control for automatic adjustment of output frequency for flow, pressure, and temperature.
Explains how to automatically measure motor parameters for optimizing inverter control performance.
Describes an efficient vector control method that estimates motor rotation speed without feedback for higher torque.
Details protection against overheating damage to the motor using electronic thermal prevention (ETH) and overload warnings.
Covers protection against inverter malfunctions like open-phase, external trips, and overload.
Explains how to set up underload fault trips and warnings, including fan fault detection and low voltage trips.
Lists various types of faults and warnings that can occur during inverter operation for troubleshooting purposes.
Outlines the RS-485 communication standards supported by the G100 inverter for data exchange.
Details how to connect communication lines and configure parameters for RS-485 communication with PLCs or computers.
Explains the supported communication protocols, LS INV 485 and Modbus-RTU, for inverter control.
Lists function settings for the Operation group, including target frequency and command sources.
Details function settings within the Drive group, covering motor capacity, torque boost, and base frequency.
Covers basic function group settings such as auxiliary references, V/F patterns, and auto-tuning.
Lists parameters related to communication settings, such as inverter ID, protocol, and frame settings.
Explains how to read trip and warning information displayed on the keypad and categorizes fault conditions.
Provides a guide to identify possible causes and remedies for various fault trips like OLT, OCT, OVT, etc.
Addresses fault conditions not covered in fault trips or warnings, such as parameter setting issues or motor rotation problems.
Details the electrical specifications for input and output, including voltage, current, and frequency ranges.
Provides physical dimensions and mounting hole information for different inverter models.
Lists compatible circuit breaker, leakage breaker, and magnetic contactor models, along with fuse and reactor specifications.
Details the terminal screw sizes and recommended torques for power and control circuit wiring.
Explains how carrier frequency, ambient temperature, and installation affect the inverter's continuous rated current.
Outlines information required for warranty claims and product registration after purchase.
Lists conditions under which malfunctions are not covered by the warranty and incur a service fee.
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