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LP300Q
Book structure design, Modular structure layout ,volume is Max.60% reduced
High wind speed design scheme ,High protection reliability structure design
Higher sealing degree of electronic components
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LP300Q--CRANE/LIFTING MACHINE MOTOR SPECIALIZED VFD


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LP300Q is a crane specific frequency converter developed by our company, which can perform V/F control or vector control on AC asynchronous motors. It is suitable for crane equipment with high starting torque, simple debugging, and can achieve 16 speed operation, closed-loop process control, and networking functions of the system.


Features:

1 Built in professional lifting specialized brake timing control. Ensure smooth start and stop of the load.

2 When the bus voltage continues to be low, reduce the given frequency of the load to maintain the normal output of the frequency converter, and avoid undervoltage faults during operation

3 When the bus voltage momentarily decreases or there is a power outage, the frequency converter quickly stops and restricts the continuation to ensure that the hook does not slip

4 Automatically calculate the highest achievable output frequency by detecting the output torque of the frequency converter. 


Wiring Diagram

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Technical Specification of LP300 Series


ItemTechnical IndexSpecification
InputInput voltage3AC 380~460V (-15%~+20%)
Input frequency50/60Hz±5%
OutputOutput voltage0~rated input voltage
Output frequencyVector control: 0~500Hz ;V/f control: 0~2000Hz
Control FeaturesControl modeV/f control;Sensorless vector control (SVC);Close-loop vector control (FVC)
Operation command modeKeypad control;Terminal control;Serial communication control (Modbus)
Frequency setting modeDigital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combined & switched in various modes.
Overload capacityG model: 150%/60s, 180%/3s;P model: 120%/60s, 150%/3s
Starting torque0.25Hz/150% (SVC); 0.5Hz/150% (V/f), 0Hz/180% (FVC)
Speed control precision±0.5% (SVC)
Carrier frequency0.5~16.0kHz, automatically adjusted according to temperature and load characteristics
Frequency accuracyDigital setting: 0.01Hz;Analog setting: maximum frequency ×0.025%
Torque boostAutomatically torque boost; manually torque boost: 0.1%~30.0%
V/f curveThree types: linear, multiple point and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square)
Acceleration/deceleration modeStraight line/S curve; four kinds of acceleration/deceleration time, range: 0.0~6500.0s
Braking unit1.5~22kW: standard build-in.30~37kW optional for build-in >37kW, external braking unit..
DC brakingDC braking when starting and stopping DC braking frequency: 0.0Hz~maximum frequency, braking time: 0.0s~36.0s
Jog operationJog operation frequency: 0.0Hz~maximum frequency ;Jog acceleration/deceleration time: 0.1s~6500.0s
Simple PLC & multi-step speed operationIt can realize a maximum of 16 multi-step speeds running via the built-in PLC or control terminal.
Built-in PIDBuilt-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.)
Automatic voltage regulationKeep output voltage constant automatically when input voltage fluctuating
Control FunctionTorque limit“Rooter” characteristics, limit the torque automatically and prevent frequent over-current tripping during the running process
Wobble frequency controlMultiple triangular-wave frequency control, special for textile
Timing/length/counting controlTiming/length/counting control function
Over-voltage & over-current stall controlLimit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping
Fault protection functionComprehensive protections include over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can record the detailed running status during failure & has fault automatic reset function
Input/output terminalsInput terminalsProgrammable digital inputs: DI1~DI6, DI5 can be used as high speed pulse input terminal.Programmable analog inputs: AI1, AI2 (compile with both 0~10V & 4~20mA).
Output terminalsProgrammable digital outputs: 2 relay outputs 2 open-collector outputs, FM can be set as high speed pulse output terminal (0~100kHz).Programmable analog outputs: AO1, AO2:(compile with both 0~10V & 4~20mA).
Communication terminalsStandard RS485 communication interface, support MODBUS-RTU communication protocol
Human machine interfaceLED displayDisplay frequency setting, output frequency, output voltage, outputcurrent, etc. Two lines display
Multi-function keyMF.K key, can be used as multi-function key
Environ-mentAmbient temperature-10℃~40℃ (>40℃, output derated), without direct sunshine.
Humidity95%RH or less (non-condensing)
Altitude≤1000M: output rated power, >1000M: output derated
Storage temperature-20℃~60℃


Dimensions of LP300 Series

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Power(KW)H(mm)W(mm)D(mm)
1.5-2.220086185
4-5.523897185
7.5-11320116210
15-22383142257
30-37445189252
45-55-75565240315
90-110638268350
132-160738350405





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