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Gelite inverter effect
Inverter integrates high voltage high power transistor technology and electronic control technology, and has been widely used. The function of frequency converter is to change the frequency and amplitude of AC motor power supply, so as to change the period of its motion magnetic field, and achieve the purpose of smoothly controlling motor speed. The emergence of frequency converter simplifies the complex speed control. The combination of frequency converter and AC squirrel cage induction motor replaces most of the original work which can only be done by DC motor, reduces the volume, reduces the maintenance rate and develops the transmission technology to a new stage.
Working Principle of Gelite inverter
Frequency converter is a power control device that converts power supply into another frequency by using the on-off function of power semiconductor devices. It can realize the functions of soft starting, frequency conversion speed regulation, improving operation accuracy, changing power factor, over-current/over-voltage/over-load protection for AC asynchronous motor. So as to improve the product process, energy saving and environmental protection functions.
Introduction to Gelite inverter Typical Series
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Performance characteristics: There are three control modes: speed sensor vector control, speed sensor vector control and VVVF. Automatic identification of motor parameters. Accurate Torque Limitation. 12 kHz carrier frequency to achieve full silence operation. Flexible combination frequency setting. Seven programmable input I/O channels, a total of 27 functional options, and a high-speed I/O port, can be given as a pulse frequency. Four programmable output I/O, a total of 24 functions can be selected, and there is a high-speed I/O port, external frequency meter. RS485 communication interface. Built-in PI regulator and simple PLC function. There are many combinations of PI's given and feedback channels. PI regulator can be adjusted independently. It has the functions of feedback disconnection protection, sleep and wake-up. Triangular wave swing frequency function for textile industry. User programs can be upgraded. |
Technical specification:
Gelite Inverter VC3000 Series Standard Specification
Three-phase 380V (maximum output voltage is the same as input supply voltage)
100% rated output current
150% rated output current for 2 minutes and 180% rated output current for 10 seconds
Optimizing Space Voltage Vector PWM Modulation Mode
Vector control with PG feedback; vector control without PG feedback; V/F control
The keyboard is given; the external terminal is given; it is given by the host computer through the serial communication port.
Digital Settings: 0.01Hz
Analog Settings: 1/1000 Maximum Frequency
Simulated setting: +0.05% maximum frequency (25 +10)
Vector control with PG feedback: +0.05% rated speed;
(25 C + 10 C)
No PG feedback vector control: +0.5% rated speed;
(25 C + 10 C)
Vector control with PG feedback: 1:1000
PG-free feedback vector control: 1:100
Vector control with PG feedback: <150 mS
No PG Feedback Vector Control: <200 mS
Vector control with PG feedback: 200% rated output torque / 0.05Hz; vector control without PG feedback: 150% rated output torque / 0.5Hz
Energy-free braking: rated output speed less than 22KW > 20%
Torque, above 30KW > 15% rated output torque
Energy Consumption Braking: > 150% Rated Output Torque
1 way, the working power supply of the contact input terminal can use the power supply of the external active contacts (12 ~ 24V)
1 way，0~10 V DC，10bit
1-way, 0-10V/0-20mA, output programmable, multiple output options
7-way programmable, forward/reverse, forward/reverse point movement, multi-segment speed, multi-segment acceleration/deceleration time, free parking, voltage/current switching and other 27 functions are optional.
(LED)
