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Shenzhen Kinda Technology Co., Ltd
Shenzhen Kinda Technology Co., Ltd
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High Frequency VFD Variable Frequency Drive 45KW / 75KW Energy Saving

High Frequency VFD Variable Frequency Drive 45KW / 75KW Energy Saving

Brand Name : Kinda
Model Number : KD330
Place of Origin : China
MOQ : Negotiable
Price : Negotiable
Payment Terms : TT
Supply Ability : Adequate inventory
Delivery Time : 3~8 Day
Dual display keyboard : Dual display LED keyboard One row can be switched, two rows of parameter settings
High Overload Capacity : 150% / 120s, 160% / 60s, 180% / 10s, 200% /1s
Starting torque : 0.5Hz/150% torque, speed ratio 1:100, dynamic response <20ms, steady speed accuracy ±0.2%
PCB protection : Spray three anti-paint to protect the circuit board intelligently and efficiently
Braking method : With DC braking, resistance energy braking
intelligent control : Speed sensorless open loop vector control
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High Frequency VFD Variable Frequency Drive 3AC 380V~460V 45KW 55KW 75KW


VFD Variable Frequency Drive advantage:

The KD330 series inverter is a general-purpose high-performance drive vector control function inverter. The inverter-controlled speed control system is based on advanced technical control theory and intelligent control means to achieve extremely high responsiveness and stability. Small size, high precision, easy operation, high reliability, multi-layer protection of equipment, better than any previous speed regulation mode, and simple structure, wide speed range, high speed regulation, easy installation and commissioning, protection Perfect function, stable and reliable operation, remarkable energy saving effect.


VFD Variable Frequency Drive features:


ItemTechnical IndexSpecification
InputInput voltage1AC 220~240V±15%
3AC 220~240V±15%
3AC 380~460V±15%
Input frequency50/60Hz±5%
OutputOutput voltage0~rated input voltage
Output frequency0~6000Hz
Control FeaturesControl modeV/f control
Sensorless vector control
Torque control
Overload capacity150% / 120s, 160% / 60s, 180% / 10s, 200% / 1s.
Starting torque0.5Hz/180% (SVC); 1Hz/150% (V/f)
Speed control precision±0.5% (SVC)
Carrier frequencytemperature and load characteristics 0.5~16.0kHz, automatically adjusted according to
Frequency accuracyDigital setting: 0.01Hz
Analog setting: maximum frequency ×0.05%
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 combinated & switched in various modes.
Torque boostAutomatically torque boost; manually torque boost: 0.1%~30.0
Acceleration/deceleration modeStraight line/S curve; four kinds of acceleration/deceleration time, range: 0.0s~65000s
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: 0.0s~65000s
Braking unitbuild-in standard.
DC brakingDC braking when starting and stopping
DC braking frequency: 0.0Hz~maximum frequency
Braking time: 0.0s~25.0s
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 FunctionOver-voltage & over-current stall controlLimit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping
Torque controlTorque control without PG
Wobble frequency controlMultiple triangular-wave frequency control, special for textile
Timing/length/counting controlTiming/length/counting control function
Fault protection functionComprehensive protections include over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can record the detailed running data while failures happen.
Input/output terminalsInput terminalsProgrammable digital input: 7 multifunctional inputs, one can be work as high speed pulse input.3 programmable analog input:AI1, AI2, AI3: 0~10V / 4~20mA
Output terminals2 relay outputs,
2 open collector outputs,
2 anaalog outputs, 0~10V / 4~20mA
Communication terminalsBuild-in standard RS485 communication interface, support MODBUS-RTU communication protocol
Human machine interfaceLED displayDisplay frequency setting, output frequency, output voltage,output current, etc. Two lines display
EnvironmentAmbient temperature-10~50°C, without direct sunshine.
Humidity90%RH or less (non-condensing)
Altitude≤1000M: output rated power, >1000M: output derated
Storage temperature-20~60°C
NoItemsKD330
1Reliable hardwareOnly first-class componens are built-in.
2Rubust designIGBT current > 2 times of inverter output current
Capacitor > 50uF/A
3Electrostatic testing1. Noncontact conditions -- without failure under 10000V.
2. Under contact condition -- without failure under 5000V.
4High overload capacity150% / 120s, 160% / 60s, 180% / 10s, 200% /1s
Smart start / stop modeAcceleration / Deceleration time can be set as 0.0s, the inverter starts and stops the motor as fast as possible without failure.
5PCB aging test100% test, 50°C, 12 hours.
Finished products aging test100% test, 50°C, 24 hours.
6Loading testTwo times, 100% tested:
1. After manufacturing.
2. After aging test.
7Grouped pulse testingWithout failure under 4500V (better EMC performance).
8Big start torque0.5Hz/150% (V/f), 1Hz/150% (SVC)
9LED display>7,5kW, two lines parameters dispaly, convenient for commissioning and operating.
10EMC filterC3 level EMC filter build-in standardly

ModelMotorRated Input Current (A)Rated Output Current (A)
KWHP
3AC 380~460V±15%
KD330-04500T445609290
KD330-05500T45575113110
KD330-07500T475100157152

Control cabinet series more power segments

Standard 2 meter network cable interface extension cable


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variable frequency controller

      

vfd ac drive

      
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