OPERATION Series
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Edition 12.08.2022 984360EC
6.2 Control Mode
The Control Mode represents the state machine of the valve. Writing to Control Mode requests a
change in the state while reading Control Mode returns the actual state of the state machine.
Remains if Homing is not started or no Exception occurs
The valve performs the homing procedure to initialize the position.
The valve moves to the desired
.
The valve closes.
The valve controls to the desired
Refer to chapter Pressure Control
The valve remains in the actual position.
Usage during Pressure Control:
Reduce valve reaction during plasma ignition.
Stopping the valve movement to evaluate the stability of the sensor, flow meter, …
Note: Change from Control Mode Close to Hold is not possible
The valve performs the system learn. Necessary for Adaptive Pressure Control.
Refer to chapter Pressure Control/Adaptive Algorithm/Learn
The valve opens and locks due to the actuation of a digital input. Release behavior:
Control Mode changes to Open or to Init if no Homing was performed yet.
Refer to Chapter Power IO
The valve closes and locks due to the actuation of a digital input. Release behavior:
Control Mode changes to Close or to Init if no Homing was performed yet.
Refer to Chapter Power IO
Power loss occurred. The valve opens or closes (Only with optional Power Failure Option)
Closing or opening behavior depends on set Power Failure.Functionality
Refer to chapter Power Failure
The motor of the valve is powerless due to a digital input.
Release behavior: Control Mode changes to Init
The valve is in an error state, no movement possible.
Recovery via Services.Error Recovery or Services.Restart Controller.
Refer to chapter Trouble Shooting.
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