7.2.1 Safe-state mode
The safe-state mode stops the execution of the loaded program.
Only the system software of the device is still functional. Diagnosis functions and pro-
gramming of the device are possible.
Activating safe-state mode
￭ Switch off the voltage.
￭ Press and hold down the programming button.
￭ Switch on voltage.
The safe-state mode is activated. The programming LED flashes slowly (ap-
prox. 1 Hz).
Release the programming button only after the programming LED starts flash-
ing.
Deactivating safe-state mode
￭ Switch off the voltage or carry out programming.
7.2.2 Master reset
The master reset restores the basic device settings (firmware remains in place). The
device must then be recommissioned with the GPA.
Performing a master reset
Precondition: The safe-state mode is activated.
￭ Press and hold down the programming button for > 5 seconds until the pro-
gramming LED starts flashing quickly.
￭ Release the programming button.
The device performs a master reset. The programming LED is switched on.
The device restarts and is in delivery state.
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32406222 10871142 19.12.2023
Pushbutton sensor 4 Komfort System 55
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