UFC762AE101 3BHE006412R0101 | ABB | Excitation control waveform

Description

UFC762AE101 3BHE006412R0101 | ABB | Excitation control waveform

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In this article, all UFC762AE101  and reception are carried out using ASCII code format for communication between upper and lower computers. As shown in Figure 3, enter a cycle time of 4.2ms in the input box, and press the “High Frequency High Level Cycle” button. After the upper computer program performs calculations, it generates time integers and residues that the lower computer needs to maintain at a high level. Then, the upper computer first sends a “31” identification code in ASCII format to the lower computer. The UFC762AE101  pin of the lower computer receives a signal interrupt and makes a judgment on it. If it is a valid code after judgment. Execute subsequent program calls to process the time integers and residues sent by the upper computer, and finally send them to the RC0 and RC1 pins of the microcontroller to form PWM excitation control waveforms; If it is determined to be an illegal code, the microcontroller refuses to process it and directly returns to the main program to maintain the previous PWM excitation control waveform.

UFC762AE101  , other level cycle buttons are processed in the same way, with only different identification codes (as described in the second paragraph). After data processing, press the receive data button to display the corresponding data in the data receiving area. The upper computer program can save and open the original data. For future reference and verification. The main program interface and running results of the upper computer are shown in Figure 3.
In the development of electromagnetic flow meters, power conversion is required. According to practical needs, the main circuit of the excitation device used in this article is shown in Figure 4, which is a full bridge converter circuit driven by two IR2110 chips.

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