News

Harmonic filter device failure analysis and ruled out
· product controller index into actual input series series, less than capacitance fast fuse, capacitors check whether there is failure. Capacitance input fingering and light damage, triggering board damage or break line, controller parameter Settings incorrectly maximum control and elimination method, replace the corresponding components.
· capacitance actual input series than controller instructions series, check thyristor is damaged, such as damage namely replacement.
Controller panel LED not bright, check whether the power fuse fusing, controller should replace the fuse.
· cannot normally vote whether cut, check controller, elimination method normal work, change the new controller.

Non-contact stabilizer failure analysis and ruled out
· regulators can't start, check the power grid ever phase lack, broken phase or existing grid anomalies, meanwhile check input voltage conform to this machine use scope, elimination method is to input voltage to the voltage detection.
· cannot regulator, check the panel work power input and output sampling circuit, whether good or break contact, then check whether the fuse fusing. Elimination method, replace the control panel, replacing the fuse.
· regulators failed to judge not stop, please direct state regulator in used temporarily.

Emergency power failure analysis and ruled out
· time.it is normal but emergency power indicator not bright, or emergency power fingering and lamp LCD menu displays "AC, LOSS". Check the nasty power supply circuit breaker breaker or time.it is good, the cable connections are eliminating methods, replace the breaker, check connect cable.
· utility normal buzzer alarm sound, should check whether the output power, load of emergency, such as overloading should disconnect overloaded portion of the load.
· fault indicator, checking transmission loads are short circuit, or control circuit has fault and inverter humidity too high or charger fault, please disconnect emergency power input circuit breaker and contact with distributors.
· when utility stops emergency power without output function, check the battery or input socket connection between whether good contacts, elimination method reconnect the wires.
· emergency power every three months maintenance time, test battery state use cleaner or clean soft cloth to wipe chassis and ventilation grille holes.

A message on：What is the switching voltage regulators
Next message：Solar system design standards