LICV3

Industrial Frequency Inverter Converters: Efficient Control for Optimal Performance

Discover how industrial frequency inverter converters offer efficient control for optimal performance in industrial applications.

LICV3 Series Inverter

Widely used in machine tools, cable, textile, winding, lifting, etc.

LicV3 series inverter integrates high-performance vector control technology and covers general-purpose inverter with multiple power bands. Equipped with open-loop and closed-loop control, strong overload suppression capability, and large low-frequency output torque, these inverters are widely used in machine tools, cables, textiles, rewinding, lifting, and other applications.

Open and closed loop vector control.
Integration of a library of industry-specific functions.
High level of safety protection design.
Book-style design saves installation space.
Extensive expansion, support a variety of modular expansion cards.
Supports multiple encoders

Technical Parameter

InputRated Voltage;FrequencyLICV3-4Txxxxx:380V-440V;50Hz/60Hz
LICV3-2Sxxxxx:200V-240V;50Hz/60Hz
Permissible voltage fluctuation rangeContinuous voltage fluctuation ≤±10%, short-term fluctuation ≤-15%~+10
Voltage imbalance rate ≤3%:Frequency fluctuation ≤5%
OutputRated VoltageLICV3-4Txxxxx:0~380V/440V
LICV3-2Sxxxxx:0~200V/240V
Highest FrequencyV/F control: 0Hz~3200Hz;Vector control: 0Hz~300HZ
Overload CapacityG-type machine:150% of rated current 60s;180% of rated current 3s
P-type machine:120% rated current 60s;140% rated current 0.5s
Control PerformanceControl MethodOpen-loop vector control, closed-loop vector control, V/F control
Adjustment RangeOpen loop control (SVC) 1:100
Closed loop control (FVC) 1:1000
Starting TorqueG-model: 0.5Hz/150% (SVC), 0Hz/180% (FVC); P-model: 0.5Hz/100% (FVC)
RPM Steady State AccuracyOpen loop(SVC):≤±0.5% rated synchronous speed
Closed loop (FVC): ≤±0.02% of rated synchronous speed
Torque BoostAutomatic Torque Boost, Manual Torque Boost 0.1%~30.0
Acceleration and deceleration modeStraight line, S-curve
V/F CharacteristicsV/F curve: straight line V/F, multi-point V/F, N-square V/F
V/F separation: full separation, half separation
Vector performanceEmploying High-Performance Vector Control Technology
PunctuationTap frequency, tap acceleration/deceleration time
Multi-speed operation16 frequency segments can be set, switchable via built-in PLC or terminals.
Closed loop controlAnalog closed loop, PG feedback speed closed loop
Torque controlsTo prevent frequent reporting of overcurrent and overvoltage, the operating torque of the motor is automatically limited.
Automatic energy savingAutomatic control of excitation current for energy-saving operation
Automatic voltage adjustmentAVR, which automatically maintains a constant output when the grid voltage changes
Automatic current limitingAutomatic limiting of current amplitude to prevent overcurrent faults
Automatic Carrier AdjustmentAutomatically adjusts carrier frequency according to temperature
Dedicated FunctionsIntelligent Water SupplySetting the target pressure and wake-up pressure to allow the water system to automatically sleep and wake up
Bus Voltage SuppressionSmooth motor shutdown without reporting faults by effective preconditioning of the busbar voltage
Internal CounterExternal pulse counting via X-terminal
Timing ControlArbitrarily set timing time, control terminal signal output
Sag controlFor equalizing flow when multiple inverters drive the same load.
Instantaneous stop non-stopIn case of instantaneous power down, the inverter does not shut down by bus voltage control
Binding FunctionCommand channel tied to frequency channel, synchronized switching
Run command channelKeypad control, terminal control, communication control
Frequency setting channelDigital, A11, AI2, Pulse, Communication
Auxiliary frequency settingMultiple auxiliary frequencies available
Two sets of motor parametersTwo groups of motors are preset according to the needs of different applications
Pulse output0~50kHz pulse output
Analog output2 analog signal outputs, respectively selectable 0/4~20mA or 0~10V
Bus supportRS-485
Multi-encoder supportSupports open collector, differential, UVW, resolver
protective functionPhase failure protection, over-current protection, over-voltage protection, under-voltage protection, over-heating protection, overload protection, short-circuit detection of the motor on power, etc.
environmentLocationIndoors, out of direct sunlight, free of dust, corrosive, flammable gases, oil mist, water vapor, dripping water or salt, etc.
altitudeBelow 1,000 meters (above 1,000 meters requires derating)
environmental temperature-10°C~+40°C, air temperature change less than 0.5C/minute
Must be derated for use above 40°C, output current derated by 2% for every 1C above 50C max.
humidity levelLess than 95% RH, no water droplet condensation
vibratoryLess than 5.9 m/s2 (0.6 g)
Storage temperature20°C~60°C
frameworkProtection levelIP20
Cold-cutting methodFan Cold Cut, Natural Cold Cut
Installation MethodsIn-cabinet installation

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