First, boot no output, no voltage indication or no start, over-voltage or under-voltage protection
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1, overvoltage or undervoltage protection: solution - adjust the internal output voltage adjustable potentiometer.
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2, the wrong phase and the lack of phase protection: the solution - three phases arbitrarily exchange two phases.
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3, the main control circuit board is bad: solution - replace the motherboard.
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4, the output AC is bad: solution - replace.
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Second, the output voltage is abnormal
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1. The regulator is a regulated regulator - replace it with a sub-regulated regulator.
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2, more than the regulator's own voltage range - need to change a wide range of regulators.
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3, the travel limit switch is broken - replace the corresponding switch.
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4, the phase circuit board is broken - replace the circuit board.
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5, servo motor burned - replace the motor.
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Three, unstable pressure
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1, exceed the regulator's own voltage regulator range - replace a wide range of regulators.
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2, the travel limit switch is broken - replace the corresponding switch.
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3, the circuit board is broken - replace the circuit board.
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4, servo motor burned - replace the motor.
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4. Tripping for no reason at work
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1, the total brake capacity selection is small - replace the appropriate capacity of the air switch.
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2, the air switch is broken - replace the air switch.
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3, the surge voltage is instantaneously too high - replace the contactless high-precision regulator.
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Five, the internal buzz of the regulator is very loud
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1, overload with load - reduce the load or replace a large capacity regulator.
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2, there are debris inside - remove debris.
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Six, the pressure regulator inside the squeak sound is very big
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1, the voltage is unstable, normal.
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2, carbon brush surface dirt - remove dirt.
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Seven, power failure after the voltage regulator can not automatically run
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1, automatic toggle switch is not open - open the switch.
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2. Circuit board failure - Replace the circuit board.
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Eight, according to the panel lift pressure no boost or buck (non-electric voltage regulator does not have this function)
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1, the servo motor burned - replace the servo motor.
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2, the travel limit switch is broken - replace the travel limit switch.
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3, the circuit board burned - replace the corresponding circuit board.
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4, manual, automatic knob is not open to manual - open to manual.
A: Three-phase automatic AC regulator fault treatment method:
1. Fault symptom:
Can not start cause: the input cable is not reliable; No input voltage treatment method: rewire, and check whether there is a broken line; Use a voltmeter to measure whether the input wiring is available;
2, the fault phenomenon: a phase no voltage indication cause: the terminal wiring should be unreliable processing method check the connection status of the phase wiring, with universal ohm file to test whether the break
3, the fault phenomenon: after starting the phase voltage is unbalanced, the phenomenon of too high or too low cause: the input voltage is abnormal; The input and output lines are reversed: each phase is not working normally: the input middle line is not connected or the connection is not reliable Treatment: check whether the power grid is normal; Check the wiring and correct it; Check whether the connection of each connector is loose;
4, the fault phenomenon: the voltmeter on the panel indicates that the voltage of each line is seriously unbalanced. The reason is that the voltage of each phase of the grid exceeds its voltage regulator range. Serious asymmetric load treatment method: the load with high requirements for three-phase balance, such as three-phase motor, must stop and check the power grid; Adjust each load and try to ensure the balance of each phase.