Issue
There is uncertainty whether the controller output between terminals V1, G, and V2 should provide a constant 24V signal or an intermittent signal when the actuator reaches the end position, and whether this behavior is configurable.
Product Line
TAC Vista
Environment
TAC Xenta 100 controller
Cause
The controller operates using increase/decrease control logic and does not track the exact position of the actuator between fully open and fully closed. As a result, it continues sending control pulses even when the actuator has reached its end position.
Resolution
The output from the TAC Xenta 100 controller to motorized valves is not a steady 24V signal. Instead, it sends intermittent pulses to incrementally open or close the actuator. This behavior is inherent to the controller design and is not configurable.
Most motorized actuators are designed to handle this type of control signal and include internal mechanisms, such as limit switches or magnetic clutch, to stop movement when end positions are reached.
Note: The TAC Xenta 100 is an outdated product and is no longer supported.
