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

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

The pneumatic actuator uses AC220 single-phase alternating current as the power supply, and accepts DC4～20mA from DCS, PLC system and other operators, and the standard signal is used to control the actuator to switch valves or automatically adjust. The electronic control module adopts a more advanced hybrid integrated circuit, contains complete protection functions, can be controlled on-site or remotely, is designed in the form of a box, and is sealed with resin casting.

The drive feedback quantity adopts high performance conductive plastic potentiometer, high precision, long life and so on. It can be combined with various angular stroke adjustment mechanisms to form a high performance and high reliability electric control valve. Therefore, it is widely used in metallurgy, power generation, petrochemical, papermaking, light industry and environmental protection and other industrial sectors.

Main Features of Pneumatic Actuator

1 The actuator is designed with a servo system (no need for additional servo amplifiers), and it only needs to connect DC4~20mA (or DC1~5V) signal and AC220V single-phase power supply to work. Built-in terminal block, wiring is extremely simple and convenient.

2 The key component of the actuator, the controller, adopts a more advanced hybrid integrated circuit and is sealed and cast with resin. The shape is box-shaped, with small volume and high reliability.

3 The feedback detection of the driving value of the pneumatic actuator adopts a high-performance conductive plastic potentiometer with a resolution of <0.4%.

4 With self-diagnosis function, when a fault occurs, the indicator light on the controller will immediately send out an indication signal.

5. The state selector switch can be used to set when the signal is off (the valve core is in the fully open, fully closed or self-locking state).

6 It can be set with the status selector switch (forward and reverse action).

7 The input signal can be set to (DC4~20mA or DC1~5V) with the state selection switch.

8 It is simple and easy to adjust the working zero point (start point) and stroke (end point).

9 When the power is suddenly cut off, it can ensure that the valve core is self-locking.

10 Adopt synchronous belt drive, which effectively reduces noise.

11. Pneumatic actuator delay protection function. When the rated load is used, it can implement state self-locking. When a fault occurs, the protection can be started immediately, and the delay protection can be canceled by reverse operation.

keyword: Pneumatic actuator