Electric Actuator
The main performance of the cont- rol system of the BST intelligent electric actuator
The remote control command can be set to pulse mode or self-holding mode. The circuit board has photoelectric isolation: it can also be set to single-contact mode according to needs, but it should be set to valve opening priority or valve closing in advance. priority.
Additional control commands
In addition to the commands of opening, closing, and stopping, the intelligent actuator also provides users with two additional control commands, which can be programmed to set the function of the command.
Emergency Control Function (ESD)
ESD (emergency shutdown) is a remote emergency control signal with higher priority than other controls. According to the operating requirements of the valve, it can be set to fully open, fully closed, or stop on site. In order to improve the controllability of the actuator under extreme conditions, ESD can go beyond the motor thermal protection, over-torque protection, etc., to complete the operation tasks under emergency conditions.
Actuator status output (remote signal indication)
The intelligent actuator has 4 bistable relays to indicate the state of the actuator, which can be set in 23 options by programming. When the attached relay group cannot meet the requirements, one more relay group (3 monostable relays, option) can be added. Note: Power-down release relays do not require battery backup. Fault indication relay The fault indicating relay is a power-on relay. In the event of a fault or power failure, the relay is released to indicate that there is a fault. There are 5 fault states to choose from in the standard state, which can be set by programming.
Multilingual character display window
The intelligent electric actuator has a character display window that can display multiple languages, which can accurately display the status of the valve and control system, such as valve position (0% is fully closed, 100% is fully open), torque value (maximum torque value) percentage). Alarm signal and set diagnostic menu, etc. User can to choose the language you are familiar with.
Local status indication
Through the liquid crystal display window, the user can observe the working status of the actuator on site, such as valve opening, torque percentage, alarm indication, etc. At the same time, there are two LEDs. When the red light flashes, it means the valve is closing, and when the green light flashes, it means the valve is opening. More information about this original text To view additional translation information, you must enter the corresponding original text
Non-contact knob
The intelligent electric actuator is equipped with a magnetic non-contact knob, through which users can perform various field operations, such as switching valves, setting parameters, and reading data. Because it is non-contact, it can ensure that the actuator can achieve various protective functions and local control. Each settable position of the red knob has a locking bayonet, and the user can lock it by himself to prevent misoperation. These settable positions include remote, local and STOP. When the knob is set to STOP, all operations on the actuator are prohibited.
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Local control
Each settable position of the red knob has a locking bayonet, which can be locked by the user to prevent misoperation. These settable positions include Remote, Local and STOP. When the knob is set to STOP, all operations on the actuator are prohibited.
Multi-turn regulating three-phase power supply voltage 380V, frequ- ency 50Hz, motor load rate 50%, protection class IP68 (1)
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