DSNEair screw air compressor several control methods and principles (A), independent control (1), near-ground automatic control (start and stop mode: machine side; loading mode: automatic) 1, press “ ON” Key start: (Y— △ start) There is a 3 second self-test after the controller is powered on. Press the “ON” key to start. After the self-test is completed, press the “ON”; ON” button to start the machine. The starting process of the host is: KM3 is energized, KM2 is powered Y-shaped starting state delay time to (Y— △ conversion time), KM3 is de-energized (KM1, KM3 interlocking), KM1 has electric motor △-shaped operation, and the startup is over. During the starting process, all the solenoid valves have been de-energized to achieve an empty start. 2. Automatic operation control: After the motor starts to the △ state, after a delay period, the solenoid valve is energized, and the air compressor starts to load, and the pressure of the cylinder begins to rise. When the air pressure rises above the set high limit pressure (unloading pressure value), the loading solenoid valve loses power, the discharge solenoid valve is powered, and the air compressor is running. If within the specified time (empty time), the air pressure is lowered again to the set low limit pressure (loading pressure value), the loading solenoid valve is energized again, the discharge valve is de-energized, the compressor normally compresses the air, and the gas is raised. Tank pressure. If the tank pressure does not drop to the low limit pressure during the empty time, the controller will automatically stop the motor work and realize the automatic stop when the empty train is too long. Only when the pressure drops to the low limit pressure, the motor automatically starts to run according to the starting process, so that the cycle is repeated. 3. Manual loading/unloading in the automatic state In the automatic state, the device is in the unloading state, press ““M” loading, if the pressure is higher than the unloading pressure, load the solenoid valve to jog and return to the unloading state; if the pressure is low At the unloading pressure, the loading solenoid valve is energized until the supply air pressure is greater than the unloading pressure and then returned to the unloading state. The device is in the loaded state, press ““M”unloading, if the pressure is higher than the loading pressure, the loading solenoid valve loses power until the air supply pressure is less than the loading pressure and then returns to the loading state; if the pressure is lower than the loading pressure, the unloading is not performed at this time. What works is that the start and stop of the device can be done by remote switch control. (3), near-ground manual control (start-stop mode: machine side; loading mode: manual) start-stop control is the same as automatic control, but after the device is started, it is in the unloading operation. Press the “M” button to load. When the air supply pressure is greater than the unloading pressure, the device will automatically uninstall. If you do not press “M””, the device will be unloaded until the empty car stops. During the uninstall process, press the “M” button to load; during the loading process, press the “M”” button to uninstall. (4) Remote manual control (start-stop mode: remote; loading mode: manual) Remote manual control is the same as near-ground manual control, except that the device can be started and stopped by remote switch control (B), networked control (1), when the controller When the network communication is set to "Computer", the computer network control can be realized (2), when the controller communication is set to "Linked", the network control between the controller and the controller can be realized, but the host can only be the 1# machine. . (C) Fan temperature control When the exhaust temperature is greater than the fan starting temperature, the fan motor runs; when the exhaust temperature is lower than the fan shutdown temperature, the fan motor stops running. (D) Automatic Drainage This controller is equipped with a timed drain function to drain water at the scheduled drain duration and interval. (E), fault shutdown and emergency shutdown When the unit has an electrical fault or high temperature exhaust fault during operation, the controller immediately stops the motor running, and the motor must be restarted after the fault is removed. In case of emergency, press the emergency stop button to cut off the power to the controller and contactor.
Label[Spiral air compressor control method][Multi-screw air compressor control method and principle]
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