Inverter can usually monitor the state of the motor from voltage, current, temperature and other aspects, so as to issue an alarm prompt to protect the motor; when we have all kinds of alarm prompt in the process of use, how to operate and correctly lift it? The following, ZFENG editor to give you a collation.

First, the inverter overcurrent alarm, how to solve?

(1) When restarting, it trips as soon as the speed is increased. This is a very serious phenomenon of overcurrent. The main reasons are: load short circuit, mechanical parts have jammed; inverter module damage; motor torque is too small and other phenomena caused.

(2) Power on the trip, this phenomenon generally can not be reset, the main reasons are: bad module, bad drive circuit, bad current detection circuit. It does not trip immediately when restarting but when accelerating, the main reasons are: the acceleration time setting is too short, the current upper limit setting is too small, and the torque compensation (V/F) setting is high.

Second, the inverter over-voltage alarm, how to solve it?

The overvoltage alarm usually appears at the time of shutdown, and the main reason is that the deceleration time is too short or there is a problem with the braking resistor and braking unit.

Third, the inverter under-voltage alarm how to solve?

A: Undervoltage is also a problem that we often encounter in use. Mainly because the main circuit voltage is too low (220V series is lower than 200V, 380V series is lower than 400V), the main reason: rectifier bridge a way damaged or silicon controlled three ways in the work is not normal may lead to undervoltage fault, followed by the main circuit contactor damage, resulting in DC bus voltage loss in the charging resistor above may lead to undervoltage. There is also a voltage detection circuit failure and undervoltage problems.

Fourth: how to solve the inverter overheating alarm?

A: Overheating is also a relatively common fault, the main reasons: the surrounding temperature is too high, the fan blocking, poor performance of the temperature sensor, the motor overheating.

Fifth: how to solve the inverter output imbalance alarm?

A: The output imbalance is generally manifested as motor jitter, unstable speed, the main reason: bad module, bad drive circuit, bad reactor, etc.

Sixth: how to solve the inverter overload alarm?

A: Overload is also one of the more frequent faults of the inverter jump, usually see the phenomenon of overload we should actually first analyze in the end is the motor overload or inverter overload itself, generally speaking, the motor due to strong overload capacity, as long as the inverter parameter table motor parameters are set properly, generally will not appear motor overload. And the inverter itself due to poor overload capacity is easy to overload alarm. We can detect the inverter output voltage.

Due to the different settings of each manufacturer, the alarm code is not the same. Everest inverter is equipped with detailed instructions in each product box, you can refer to our manual which can help you.