ABB TZIDC V18345 Positioner
The TZIDC is an electronically configurable positioner with communication capabilities designed for mounting on
pneumatic linear or rotary actuators. It features a small and compact design, a modular construction, and an excellent
cost-performance ratio.Fully automatic determination of the control parameters and adaptation to the positioner allow for considerable time savings as well as optimum control behavior.
ABB valve positioners are the core accessories for pneumatic control valves. It is mainly used to control the regulating valve, collect the current control signal output by the controller, and regulate the valve through the air pressure signal. After the regulating valve acts, the valve stem will have a certain displacement, and the relevant signal will be transmitted to the valve positioner. The ABB positioner compares and analyzes the input control signal and the valve position feedback signal. If the two signals are different, the driving components of the regulating valve are prompted to work until the two signals are the same. If the two signals are the same, the drive unit will not adjust the valve position.
Therefore, ABB valve positioners constitute a feedback control system that uses the displacement of the valve stem as the measurement signal and the output of the controller as the setting signal.