# Control Mode

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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.

0 | Init | State after power up. Remains if Homing is not started (see Homing.Start Condition) or no Exception occurs
1 | Homing | The valve performs the homing procedure to initialize the position. Start condition: depends on set Homing.Start Condition Behavior at end: depends on set Homing.End Control Mode Refer to chapter Homing
2 | Position | The valve moves to the desired Target Position.
3 | Close | The valve closes.
4 | Open | The valve opens.
5 | Pressure Control | The valve controls to the desired Target Pressure. Refer to chapter Pressure Control
6 | Hold | 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, … Change from Control Mode 3 Close to 6 Hold is not possible
7 | Learn | The valve performs the system learn. Necessary for Adaptive Pressure Control Refer to chaper Learn
8 | Interlock Open | The valve opens and locks due to the actuation of a digital input. Release behaviour: Control Mode changes to 4 Open or to 1 Init if no Homing was performed yet. Refer to Power connector IO
9 | Interlock Close | The valve closes and locks due to the actuation of a digital input. Release behaviour: Control Mode changes to 3 Close or to 1 Init if no Homing was performed yet. Refer to Power connector IO
12 | Power Failure | 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 Power Failure Option
13 | Safety | The motor of the valve is powerless due to a digital input. Release behavior: Control Mode changes to 1 Init
14 | Error | The valve is in an error state, no movement possible. Recovery via Services.Restart Controller. Set Services.Error Recovery TRUE for recovery without restart (no communication lost). Refer to chapter Trouble Shooting

View:

CPA |  | First digit on display
| Init Homing Close Open Pressure Control Position Interlock Open or Close Hold Learn Safety Mode Power Failure Error | I H C O P A I H L S F E