FAQ Of Customer

Voltage is too high

The screw air compressor unit is equipped with a voltage protection device. Usually, the equipment will start automatically under low pressure, and it is normal for the equipment to automatically stop under high pressure. All pressure-related pressures are automatically controlled by pressure switches or pressure sensors. Therefore, if there is a pressure problem with the machine, it is usually only necessary to adjust the air compressor pressure, adjust the operating range of the pressure switch, and adjust the starting pressure set on the sensor. Pressure switches have different ranges and ranges. The scope can be adjusted according to the company's production needs, and the differences generally remain unchanged. Just adjust the starting and ending pressure values ​​set by the pressure sensor. You can adjust the pressure by finding the pressure adjustment option on the air compressor panel.

Voltage is too low

This is a problem that many users are prone to encounter, and the damage is usually greater. If a company uses an industrial variable frequency air compressor, the voltage can only be changed by adjusting the transformer. For example, if the mains voltage is only 360V, the transformer will need to be replaced when 380V becomes 220V. However, since the cost of replacing a transformer with an electric motor is often high, it is recommended to contact the manufacturer before deciding on a solution.

In the case of an inverter air compressor, there are more solutions. For inverter models, due to the internal circuit principle of the inverter: the inverter changes the output power by changing the output voltage, but the voltage cannot be higher than the input voltage. If the input voltage is only 360V, a machine with a rated voltage of 380V can only output 360V; if the voltage is not enough, the inverter will increase the current. In fact, it can be used as long as the current is not too large. If the current is too large, the upper limit frequency can also be reduced to ensure normal operation of the machine.