In the control circuit of this series of control cabinets (boxes), there are both automatic control and manual control, as well as overcurrent, overvoltage, undervoltage, phase loss protection and accident alarm functions. Before using this product, it must be reviewed according to the electrical schematic diagram. After wiring, adjust the setting value of the corresponding components according to the actual requirements of the motor, and then start.
Automatic operation: turn on the power supply, the power indicator light is on, turn the transfer switch to the "automatic" position, and check whether the motor controlled by the control cabinet (box) acts according to the instructions of the liquid level controller. When the liquid level reaches the control liquid level, the corresponding liquid level indicator lights up, the corresponding limit control relay normally open contact is automatically closed, the secondary control circuit is automatically connected, the motor starts, and the running indicator light is on. When the water level reaches the stop level, the corresponding indicator light is on, the corresponding limit control relay of the liquid level measurement and control instrument is normally closed, the normally closed contact is disconnected, the secondary control circuit is open, the motor stops working, and the running indicator goes out.
Manual operation: turn on the power supply, the power indicator light is on, turn the transfer switch to the "manual" position, press the start button, the motor starts to run, the running indicator light is on, press the "stop" button, the motor stops running, and its running indication The light goes out.
No matter what kind of control method is adopted, when the limit water level is reached, the over-limit water level signal contact is connected, and the secondary control circuit loses power, so that the motor stops running, and an audible and visual distress signal is issued. If an accident occurs during the operation of the motor, the accident indicator light will be on, and the electric bell will automatically report the suffering. At this time, press the stop button to force the motor to stop working.
