.. _key-switch:

Key Switch
==========

All Neobotix robots are equipped with a key switch to turn the robot on and off
and to reset emergency stops. It can only be operated as long as the key is
inserted.


Turning on
----------

To start the robot, turn the key clockwise (towards position ``II``) and then release again.

If the robot has an LC display, it will light up instantly.
If the robot has LED lighting, the LEDs will cycle through all available colors once the
robot becomes operational and then change to one of the signals described at :ref:`led`.


Emergency Reset
---------------

After an emergency stop was issued and the emergency buttons have been unlocked again,
the safety system can be reset.
Turn the key clockwise (towards position ``II``), hold for about one second and
then release again.

Depending on the model, the robot will show the status change either through the LC display or through the LEDs.


Shutting down
-------------

Turn the key counter-clockwise (towards position ``I``) and hold for a few seconds to
initiate the shutdown.
If an LC display is present, it will show a message, if LEDs are present, they will signal the shutdown procedure.

During the shutdown process, the
platform software (if running) terminates and shuts down the operating system.

In case the on-board computer is shut down remotely via the GUI of the control software,
the robot will turn off automatically.


Switching off
-------------

To immediately turn off the robot without waiting for the on-board computer to
shut down, turn the key switch counter-clockwise (towards position ``I``) and
hold it until the LCD or LED light switches off.

.. note:: With this method, the robot is shut down by cutting the power supply.
   This may damage the on-board computer's hard- and software.