What should I do if the pneumatic actuator suddenly loses power?

Pneumatic actuators are powered by AC220 single-phase AC power and receive DC4-20mA standard signals from DCS, PLC systems, and other operators to control the opening and closing of valves or automatic regulation. The electronic control module adopts more advanced hybrid integrated circuits, including complete protection functions, which can be controlled on-site or remotely. It is designed in the form of a box and sealed with resin casting.
The driving feedback adopts high-performance conductive plastic potentiometers with high precision and long service life, which can be combined with various angular stroke adjustment mechanisms to form high-performance and highly reliable electric control valves. Therefore, it is widely used in industrial sectors such as metallurgy, power generation, petrochemicals, papermaking, light industry, and environmental protection.
Main characteristics of pneumatic actuator
The actuator is designed with a servo system (without the need for additional servo amplifiers), which only requires the connection of DC4-20mA (or DC1-5V) signal and AC220V single-phase power supply to operate. Equipped with internal wiring terminals, the wiring is extremely simple and convenient.
The key component of the actuator - the controller, adopts more advanced hybrid integrated circuits, is sealed and cast with resin, has a box shaped appearance, small volume, and high reliability.
The feedback detection of the driving amount of the 3 pneumatic actuators adopts high-performance conductive plastic potentiometers with a resolution of<0.4%.
4 has a self diagnostic function, and when a fault occurs, the indicator light on the controller will immediately send out an indication signal.
The 5-use state selection switch can be set to disconnect the signal when the valve core is in the fully open, fully closed, or self-locking state.
6. The state selection switch can be set (forward and reverse action).
The 7-use state selection switch can set the input signal to (DC4-20mA or DC1-5V).
Adjusting the work zero point (starting point) and travel (ending point) is simple and easy.
When there is a sudden power outage, the valve core can ensure self-locking.
10 adopts synchronous belt transmission, effectively reducing noise.
11. Pneumatic actuator delay protection function, capable of state self-locking at rated load, can immediately activate protection in case of fault, and can reverse operation to cancel delay protection.

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