Intelligent electric valve controller

After years of product upgrades, ZXQ series of electric valve products for high-performance digital instrumentation applications for various industries, can be used as a variety of intelligent regulators, DCS, PLC systems and inverter back-up manual operation. Completion of the electric valve actuator and inverter direct operation and feedback tracking to achieve automatic manual / state of non-disturbance, for the system start-stop, fault handling to provide convenience. Electric valve is widely used in electric power, steel, petrochemical and light industry and other industries. Typical applications in the standard current or potentiometer feedback supporting the use of electric actuators, electric valve display intuitive and easy to operate. The positioner can accept the DC4-20mA adjustment signal from the upper instrument and the "three-wire" signal (or the position feedback signal of DC4-20mA) of the lower electric actuator potentiometer to output the "on" and "off" signals to achieve Electric valve opening and closing control and regulation. 1, the electric valve control accuracy: 0.1% -3.0% (adjustable); 2, the electric valve can be connected to the electric actuator feedback signal: Potentiometer 500Ω-10KΩ; 3, the electric valve can receive external control signal (DC): 4- 20mA, the other input signal factory custom); 4, the motor valve can be set actuator positive and negative action mode and the input signal interrupt "interrupt" mode-OPEN, STOP, SHUT; 5, the electric valve can be set to allow electronic brake; 6, electric valve SCR output: AC, 600V, 25A; 7, the electric valve output actuator position signal: low drift output 4-20mADC corresponding actuator fully closed to full Open, the signal is completely isolated from the input (optical isolation); 8, the electric valve ambient temperature: 0-70 ℃ (can be set), humidity: ≤ 90% RH; 9, electric valve over-temperature protection; Dimensions refer to the online description; 11, the motor valve can be freely calibrated by the input signal corresponding actuator actuator range (generally calibrated for the electric actuator fully closed, fully open position); 12, manual / automatic interference- Electric valve actuator stall detection Testing and control functions; 14, electric valve can be set to allow changes in accuracy or re-adjust the time; 15, the password lock to prevent misuse; 16, according to the input signal and the actuator corner position intelligent step adjustment and precise positioning; Code indicates the cause of the malfunction, etc .; 18, electric valve can be extended RS485 communication function; 19, electric valve special requirements can be customized.