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Current vector inverter

Brand: RENDA
Model: AD300 18.5KVA-30KVA
Updated: 2015/10/29
  • Product description
  • Scope of application
  • Product features
  • Technical parameters

Renda current vector inverter is a vector control technology through coordinate transformation, the three-phase system equivalent conversion into M-T two-phase system, the AC motor stator current vector decomposition into two DC components (that is, magnetic flux component and torque component), so as to achieve the purpose of controlling the magnetic flux and torque of AC motor respectively, so as to obtain the same good control effect as DC speed regulation system.

Application fields of Randa current vector inverter:

 
Metal products industry 
With closed-loop adjustment with a given front speed, in tension synchronous control systems such as direct wire drawing machines, fast response, smooth operation, simple and reliable control Fast transport of small loads 
 Load estimation saves time and safely and intelligently increases operating speeds, and the zero servo function makes crane runs smoothly and reduces mechanical wear on gears and brakes, which reduces maintenance and increases uptime 
Elevator applications 
Low pitch fluctuations make passengers feel smooth and comfortable when riding, and the accurate load estimation function allows the elevator to be accurately positioned under various load conditions 
Mine lifting 
Stable frequency output makes the mine hoist run smoothly and safely 
Steel industry 
Excellent low-frequency output torque makes the tie steel production line run freely 
Paper industry 
The winding of paper has very high requirements for tension fluctuations, and the precision of torque calculation makes the output of torque smooth and responds quickly 
CNC machine tool applications 
At low speed or even zero speed, 150% rated torque runs smoothly, so that CNC machine tools, printing machinery and other loads have almost perfect performance 
Textile industry 
Whether it is a spinning machine or a roving machine, the independent design of the air duct of the Renda inverter can fully meet the workshop site environment of multi-cotton wool, and the good heat dissipation design makes the inverter run safely and reliably for a long time.

◆Control mode: no PG vector control, V/F control, torque control

 
◆Overload capacity: 150% rated current 60s; 180% rated current 10s
 
◆Starting torque: no PG vector control: 150% starting torque at 0.5Hz
 
◆Speed regulation ratio: no PG vector control: 1:100
 
◆Speed control accuracy: no PG vector control: ±0.5% maximum speed
 
◆Carrier frequency: 0.5K~15.0KHz
 
◆Frequency setting mode: digital setting, analog setting, serial communication setting, multi-segment speed, PID setting, etc.
 
◆ Multi-stage speed control function, can realize 8-stage speed control
 
◆ Pendulum frequency control function, suitable for textile control occasions.
 
◆ PID control function.
 
◆ Instantaneous power failure without stopping function.
 
◆ Speed tracking and restarting function, which can realize smooth starting without impact on the rotating motor.
 
◆ Automatic voltage regulation function: when the grid voltage changes, it can automatically keep the output voltage constant.
 
◆ Provide a variety of fault protection functions: overcurrent, overvoltage, undervoltage, overtemperature, phase loss, overload and other protection functions.
 
◆High-speed DSP digital processing chip, high-performance IGBT inverter module.

Renda inverter specification sheet

power (kW). 0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75
output voltage 3-phase O one rated input voltage
rated current (A). 2.5 4.0 6.0 9.0 13 17 25 32 37 45 60 75 90 110 150
overload capacity constant torque/heavy duty applications: 150% 1 minute, 180% 20 seconds, square torque/light load applications: 120% 1 minute, 150% 1 second
input rated voltage/frequency 3-phase 380V/440V; 50Hz/60Hz
allowable voltage range 304V-456V voltage imbalance: ≦3%; Permissible volatility: ±5%.
Rated current(A) 3.7 5.4 7.0 10.7 15 20.5 27 35 38.5 46.5 62 76 92 113 157
brake unit standard built-in needs to be external
protection level IP20
cooling mode forced air cooling
power (kW)
90 110 132 160 200 200 250 280 315 355 400 450 500 560
output voltage (V). 3-phase 0~forehead input voltage
rated current (A). 176 210 250 300 380 420 470 540 600 660 730 840 900 950
overload capacity constant torque/heavy duty applications 150% 1 minute, 180% 20 seconds, square torque/light load applications: 120% 1 minute, 150% 1 second
input rated voltage/frequency 3-phase 380V/440V; 50Hz/60Hz
allowable voltage range 304V~456V; Voltage unbalance: ≦3%; Allowable lead rate fluctuations: 5%
rated current [A). 180 214 256 307 385 430 480 548 610 970 610 850 910 960
brake unit External required
anti-expansion level IP20
cooling mode forced air cooling
                                 
AD300-T41606/200P and above products are equipped with 100-current electric hanger
                     
                                 
power [kW). 0.4 0.75 1.5 2.2
output voltage (V). single-phase 0 ~ rated input voltage
rated current (A). 2.5 4.5 7 10
overload capacity 150% 1 minute, 180% 20 sec
input rated voltage/frequency 200V/240V:50Hz/60Hz
allowable voltage/frequency 175V~264V: voltage imbalance: ≤3%; Permissible frequency fluctuations: ±5%.
rated current (A). 5.3 8.3 14 23
brake unit standard built-in
protection level IP20
cooling mode forced air cooling

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