Electric Actuator
The LCD screen displays the opening of the valve in real time, and displays alarm information in real time according to the working situation. High-brightness LED light-emitting tube indicates the switch limit position of the valve.
The remote switch signal can be controlled (remote analog signal control is optional), and the local operation knob can adjust the valve position on site. The local knob operation transmits the signal through magnetic induction. Since there is no through shaft, the IP68 protection level is guaranteed.
The relay contact output is used to indicate the switch limit and fault alarm of the valve. All contacts have multiple output functions and can be set by the user. (Optional 4-20mA current signal output reflects the valve opening)
Working parameter setting and switch limit adjustment can be completed through the operation knob, without opening the electrical cover, so that dust, moisture and other harmful substances in the environment cannot enter the interior of the actuator, which greatly improves the reliability of the electrical control part.
Rich human-machine dialogue function, the electrical control part adopts a new SOC chip, which reduces the use of electronic components and complex electronic circuits. It adopts multi-layer circuit board, selects world brand components, high-quality automatic patch technology, has higher stability and electromagnetic compatibility.
The input of the digital signal and the output of the state contact are completely isolated from the main control board, and the anti-interference is extremely strong.
The series electric actuator (switching type) adopts magnetic induction Hall sensor; the electric actuator (adjusting type) can be equipped with an absolute angle sensor, and the sensor adopts non-contact measurement and has ultra-low power consumption. It has extremely high measurement accuracy and long service life.
In addition to standard hard wiring, MODBUS bus control cards can also be expanded.
The single-phase or three-phase fully enclosed squirrel-cage induction motor configured according to the power supply requirements has large starting torque, small inertia, and convenient and fast wiring. And has overheating protection function. Use AC contactor or solid state relay to control the start and stop of the motor.
Torque protection adopts highly sensitive micro switch. Ensure the safe operation of valves and actuators.
The wiring method of the actuator adopts a double-sealed sunflower wiring board. With the use of explosion-proof boxes, it is suitable for working in hazardous working environments such as areas 1 and 2 of explosive mixtures of IIA and IIB.
The aluminum alloy shell and box have strong anti-corrosion ability after surface phosphating treatment. There is an O-ring seal at the static fit, and the box with a skeleton oil seal at the dynamic fit can reach IP68 protection level. Optional explosion-proof box It is suitable for working in dangerous working environments such as areas 1 and 2 of explosive mixtures of IIA and IIB.
Precision worm gear reduction mechanism with small clearance, high efficiency, low noise and long life. The self-locking of the worm gear and the worm prevents the reverse rotation of the actuator when the power or signal is cut off.
The innovative design of manual/electric automatic switching mechanism, manual operation is realized by pulling the clutch release handle, once the motor receives an electric signal to start, the clutch can automatically reset and the actuator will return to the automatic state.
The size design of the hand wheel ensures the safety and labor saving during manual operation.
Electric actuator inspection item list
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