How to do the sudden power failure of the pneumatic actuator?
Pneumatic actuator AC accept 220 single phase AC power DCS, PLC system and other operators DC4 ~ 20mA, control actuator on/off valve or automatic regulation standard signal. The electronic control module features a more advanced hybrid integrated circuit with complete protection functions, can be controlled on-site or remotely, is designed in a box shape and sealed with resin casting.
Drive feedback adopts high performance conductive plastic potentiometer, high precision, long service life, can be combined with the Angle stroke adjustment mechanism into a high performance, high reliability electric regulating valve. Therefore, it is widely used in metallurgy, power generation, petrochemical, paper making, light industry, environmental protection and other industries.
Pneumatic actuator main features
1. The actuator is designed with a servo system (no additional servo amplifier is required), which only needs to be connected with DC4 ~ 20mA(or DCC1 ~ 5V) signal and AC220V single-phase power supply to work. Set up wiring terminal, wiring is very simple and convenient.
2. The key component of the actuator -- controller, adopts more advanced hybrid integrated circuit, adopts resin seal casting, box shape, small volume, high reliability.
3 Pneumatic actuator drive feedback detection using high-performance conductive plastic potentiometer, resolution of 0.4%.
With self-diagnosis function, when there is a fault, the indicator light on the controller will immediately send out the indicator signal.
5 The switch can be set by state when the disconnection signal (spool fully open, fully closed or self-locking).
6 Can be set with the state selector switch (forward and reverse action).
7 Status selector switch Input signal (DC4 ~ 20mA or DCC1 ~ 5V) can be set.
It is easy to adjust working zero (starting point) and travel (end point).
In case of sudden power failure, ensure that the spool self-locks.
Synchronous belt drive, effectively reduce the noise.
11 Pneumatic actuator delay protection function, rated load can achieve state self-locking, failure can immediately start protection, delay protection can be reversed operation cancel.
