Control Valve

ZXQ2003/2004 Type Intelligent Valve Positioner

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ZXQ2003/2004 Type Intelligent Valve Positioner



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Category : Control Valve. Tags : control valve, Accessaries

ZXQ2003、ZXQ2004 electric valve intelligent positioner is intelligent signal collection control system using industry singlechip as certer . Small volume , It can be installed in electric actuator connection box or mounted in outside by DIN guid rail , and can receive output 4-20mADC signal of industrial gauge or computer ( other input signal can be customed before out of factory ). It matchs potentiometer feedback electric actuator to operate vary valve or device precision position and freely calibrate electric actuator corner ( displacement ) , at same time, output 4-20mADC actuator corner ( displacement)feedback exchange signal. We can set precision actuator corner lower limit value and upper limit value by pressing key. Positioner adopts 3 pcs press key operation , 9 pcs LED light to appear positioner model directly, and 4 digital LED appear valve position actual opening, valve position design opening, positioner shell inner temperature, easy operation.

ZXQ2003/2004 type intelligent valve positioner Technology feature

  • Control precision: 0.1%-3.0% (can be adjusted by U4 parameter )
  • Can be linked with electric actuator feedback signal:Potentionmeter 500Ω-10KΩ
  • Can be received outside control signal DC):4-20mA(1-5V、0-10V、on-off value are setted before being carried out of factory
  • Input resistance : 250Ω
  • Some can be setted by U1 parameter: ①DRTA/Direct action, RVSA/reverse action ② Input signal interrupt , Interrupt model –OPEN, STOP, SHUT
    Optional : ① Controlled silicon output (AC,600V,25A)
    ② Servomotor output (AC,250V,10A) Note: specify when order
  • Output actuator position signal : low-drift output 4-20mADC actuator full close to full open, signal insulate with input completely.
  • Working temperature : 0-70℃. Humidity : 35-85%
  • Overtemperatuer protective fuction: Positioner inner temperature ≥70℃, Positioner stop controlling actuator.
  • Dimension:ZXQ2003 77mm(Bottom surface length)×76mm(width)×51mm(height)
    ZXQ2004 74mm(Bottom surface length)×57mm (width) × 45mm(height)
  • Can calibrate actuactor action interval of input signal ( normally calibrate actuator full close ,full open position)
  • Can set up-down limit point
  • Actuator locked-rotor detection control function : like control actuator locked-rotor lasts 3-4S, positioner will be off control output 1min. Test control repeatly to locked-rotor are released.
  • Can set self-adjustment precision : While actuator is working, can’t position ,appear 3 times vibration,
  • positioner will reduce positioner precision to 1/1000 ( original precision + 1/1000 ). repeatly adjust to suitable control precision. Set parameter is UO(000.x)
  • Code lock, avoid wrong action
  • Avoide actuator start frequently function
  • With erro code indicating accident reason
  • Intelligent step adjustment position precision as per input signal and actuator angle positon

Link way

Refer to below gauge terminal and gauge shell connection drawing to connect electric atuactor and power wire. Please note connection polar ,in order to reduce motor interference , electric actuator control wire and feedback wire should be apart. Gauge weak electric signal wire shorter is better. If it is necessary to use longer wire, we should shield signal wire. Out shield and control box should be connected to earth suitable.
Positioner and electric actuator are connected by 7 wire connector , Positioner GND can connect with electric actuator sheel or suspending in the air without connecting. RO, RV, RS connect feedback potentiometer in electric actuator. RV are connected with potentionmeter slide arm, RO are connected with resistan reducing terminal between actuator opening and slide arm . RS are connected with another terminal. SHUT,OPEN,COM are connected with servo motor close, open, com terminal.
Note: Positioner COM, OPEN , SHUT is active output terminal, COM, OPEN and COM, SHUT related output voltage is power voltage.

ZXQ2003/2004 type intelligent valve positioner Link way

Intelligent control panel

ZXQ2003/2004 type intelligent valve positioner Intelligent control panel