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Precautions for Frequency Converter Control Circuit Measurement
2021-11-11
Digah Company
25
The measurement of control circuit varies with different brands, and the following problems should be paid attention to in the process:
(1) Use a measuring instrument with the highest possible input impedance. When measuring the current, use a special current probe. No matter what kind of measurement is, as with the main circuit measurement, do not set the measurement point arbitrarily, and the measurement lead shall not be extended.
(2) The measurement of the control circuit shall be carried out when there is no voltage in the main circuit. The public line of the measuring instrument shall be connected at the best part, which can be the public point closest to the measuring point.
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