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- Size: 0.3
- Place of Origin: JINAN
- Brand Name: JINGLU
- Model Number: PWST
- Weight: 15.000 kg
1. Performance characteristics and working principle
Ø A variety of operating configuration options, very flexible and convenient
Ø Control signal: Current signal (4 ~ 20mA or other non-standard signals)
Voltage signal (0-10V or other non-standard signals)
Choose positive and negative effects can be easy to
achieve sub-process control mode.
Ø Output signal: Current signal (4 ~ 20mA or other non-standard signals)
Voltage signal (0-10V or other non-standard signals)
Ø Communication interface: RS485 / HART / FF /
Ø Flow characteristics: linear, quick opening, slow opening.
Ø Valve direction of action: positive and negative selection
Ø Liquid crystal display in English: menu operation, more humanized human-computer interaction; easier to operate..
Ø stroke self-adjusting: innovative mechanical design, simple and quick stroke position adjustment, the relationship between the input signal and stroke adaptive adjust to meet the needs of different stroke of the valve.
Ø Self-diagnosis function: The actuator automatically record the operating parameters during operation. When the actuator fails, the control module could detect and alarm, being fault display on the LCD screen, and send to the control center via the switching signal.
Ø Easier operation: Innovative structural design, the main control circuit module add-in, without opening the cabinet allows easy operation. Remote/local control button to switch. Manual operation is easier,as the handwheel is safe and reliable, labor-saving, with small size.When not powered, pull clutch lever for manual operation; when it is powered, the clutch is automatic.
Ø The control circuit is more reliable: the motor drive control using non-contact, no spark, with a long service life; a wide range of power supply to adapt, 380V power supply adaptive phase models.Full digital control circuit module, without the presence of a mechanical potentiometer, users do not need to worry about the effects of mechanical vibration and transportation;Using advanced anti-jamming technology,even in harsh environments.New "watchdog" technology away from the "crash" of distress.
Ø Reversing the direction of movement of the actuator can delay the protection and make sure the power transmission components longer service life.
Ø Lower operating noise
2.2Structure and working principle
The working principle of PWST intelligent linear electric actuator is as shown on figure 2. It adopts single MCU and peripheral chips to form the intelligent control unit and receives standard 4-20mA direct current signal (or stroke-dividing signal, voltage signal). The signal will be sent to MCU after being processed and A/D converted. MCU will then send the processed data to LCD display for adjusting result. Control signal created from arithmetic processing will drive the permanent magnet synchronous motor, which will drive the movement of transmission silk pole after changing speed. That will produce mechanical stroke, which will give feedback to MCU after position measurement to carry out data processing and finally complete the action of corresponding relation between “signal and position”.
In addition, the system also has a communication function, the host computer can receive commands via remote digital control. It operates on the intelligent controller panel menus and buttons may also be implemented by local control. The system also has a faulty alarm and independent 4-20mA analogue position feedback output.
- Size: 0.3
- Place of Origin: JINAN
- Brand Name: JINGLU
- Model Number: PWST
- Weight: 15.000 kg