6DR5011-0NG13-0AA0 Siemens Positioner, SIPART PS2 Smart, electropneumatic positioner, 4…20mA, Ex/nEx, single-acting, aluminum enclosure, small, for pneumatic linear and part-turn actuators.
Siemens positioner Features
- High Precision: It ensures precise positioning control, allowing for accurate and consistent movement in various industrial processes. For example, in a manufacturing line for automotive components, this precision helps in achieving the exact alignment of parts.
- Robust Construction: Built to withstand harsh industrial environments, with durable materials and a rugged design. This is crucial in sectors like heavy machinery manufacturing where the equipment is exposed to vibrations and temperature variations.
- Easy Configuration and Calibration: The positioner can be easily configured to meet specific application requirements, and calibration is straightforward, reducing setup time and potential errors. Say, in a chemical processing plant, operators can quickly adjust the settings for different valve positions.
- Advanced Communication Options: Enables seamless integration with other control systems and devices, facilitating efficient data exchange and centralized control. Such as in a smart factory setup, where multiple devices need to communicate in real-time for optimal production.
- Energy Efficiency: Consumes less power, contributing to overall energy savings and cost reduction in long-term operations. In large-scale industrial facilities, this can lead to significant savings over time.
- Reliability and Long Service Life: With its quality components and reliable performance, it provides a long service life, minimizing downtime and maintenance costs. This is especially valuable in continuous production processes where any disruption can have a major impact.
Siemens positioner works principle
1.Signal reception and processing:
Siemens positioners receive a set signal from a control system such as a DCS or PLC, usually a standard current signal of 4-20 mA. This signal contains information about the desired position of the valve.
2.Position detection:
The positioner detects the actual position of the valve through a built-in sensor. Common sensor types include potentiometers, Hall sensors, etc.
3.Comparison and deviation calculation:
The positioner compares the received set position signal with the actual valve position detected and calculates the deviation between the two.
4.Control output:
According to the magnitude and direction of the deviation, the positioner generates the corresponding control signal to drive the pneumatic actuator (such as the cylinder). The control signal can be a pneumatic pressure signal that pushes the valve towards the set position by adjusting the pressure of the air source.
5.Feedback adjustment:
In the process of valve operation, the actual position is constantly detected and compared with the set position to form a closed-loop feedback control system. Until the deviation between the actual position and the set position is within the allowable range, the positioner stops output control signal and the valve stabilizes in the set position.
