As a core product in the machinery industry, the frequency converter is a power control device that uses frequency conversion technology and microelectronics to control AC motors by changing the frequency of the power supply. A frequency converter mainly consists of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, detection unit, and microprocessor unit.
Inverters adjust the voltage and frequency of the output power supply by switching the internal IGBT/IGBT modules, providing the required power voltage according to the actual needs of the motor, thereby achieving energy saving and speed regulation. In addition, inverters have many protection functions, such as overcurrent, overvoltage, and overload protection.
Control functions:
Linear V/F control with flux current control (FCC) to enhance motor dynamic response and control characteristics; multi-point V/F control; 1. Built-in PID controller;
2. Rapid current limiting to prevent unnecessary tripping during operation;
3. Six digital inputs, two analog inputs, two analog outputs, and three relay outputs; 4. It has 15 fixed frequencies, 4 jump frequencies, and is programmable;
5. Utilizes BiCo technology to enable free connection of I/O ports;
6. Integrated RS485 communication interface, with optional PROFIBUS-DP communication module; 7. Flexible ramp function generator, with optional smoothing function;
8. Three sets of parameter switching functions: motor data switching, command data switching;
Protection functions:
Overload capacity is 140% of rated load current for 3 seconds and 110% of rated load current for 60 seconds; 1. Overvoltage and undervoltage protection;
2. Inverter over-temperature protection;
3. Ground fault protection and short circuit protection; 4. I2t motor overheat protection;
5. PTC/KTY motor protection.
debug
1. Press the programming key; the display will show "F0".
2. Press the data confirmation key to enter "F0". The display will then show "F0-00".
3. Press the numeric keypad to adjust the "F0" parameter to "F0-12", then press the data confirmation key again to enter "F0-12". At this time, the display will show "50.00" by default, which is 50Hz.
4. Press the numeric keypad to adjust to the desired frequency, such as "80.00", which means the desired frequency is 8Hz. Then press the data confirmation key again to complete the upper limit frequency parameter correction.
5. Press the numeric keypad to adjust to the display "F0-10". Press the data confirmation key once to enter "F0-10". The default display will still be "50.00" (50Hz). Press the numeric keypad to adjust to the desired frequency, such as "80.00" (80Hz). Press the confirmation key once to complete the modification. Then press the "RUN" button twice to complete the frequency adjustment.
