FAQ
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Q25【Switch】Why does the HYFK switch not operate when the DC12V signal is to the K+ and K- after the “open” indicator light of the switch is on?
Check the three-phase voltage.
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Q26【Reactive power compensation controller】Why does the AC contactor not operate when the indicator light on the control panel is on.
Check the current in the AC contactor coil. Check whether the negative pole of the power supply is connected to the output terminal of the controller.
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Q27【Reactive power compensation controller】Why does the power factor change abnormally after the capacitor is put into operation?
Check the voltage or current signal samples in the signal sampling circuit. Check whether the current transformer is correctly mounted on the common negative pole of the busbar.
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Q28【Reactive power compensation controller】Why does the controller screen display C-0?
This happens when the input signal current of the controller is less than 60 mA or is zero. Check whether the transformation ratio is normal or the current signal circuit is open.
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Q29【Reactive power compensation controller】Why is the indicator light is off when one or several groups of capacitors are not put into operation?
The capacitance is not preset or is preset excessively when you modify the parameters in the reactive power control mode. Presetting the capacitance will solve this issue.
