.. _mpo-500-operating-elements:

Operating Elements
------------------

The figure below shows the tail of the MPO-500 and the most important operating elements.

.. figure:: mpo_500_control_elements.PNG

   Operating elements of the MPO-500

	== ======================
	1  Emergency stop buttons
	2  Brake release button
	3  Key switch
	4  HDMI socket
	5  Wireless joystick receiver
	6  Charging socket
	7  Connector for 2nd scannerr
	8  Ethernet socket
	9  USB socket
	10 LC-Display
	== ======================


Emergency Stop Buttons
**********************

When one of these buttons is pressed the robot is immediately set to emergency stop.
All drives are disconnected from power supply and the fail-safe brakes are engaged.
This state can be reset by unlocking the emergency stop buttons and
turning the :ref:`key-switch` clockwise to position II for a few seconds.


Key Switch
**********

See :ref:`key-switch`.


Brake Release Button
********************

Pressing this button will open the motors' brakes allowing the robot to be moved even while it is turned off.


Charging Socket
***************

The battery charger can be manually connected to this socket.
Further information can be found at :ref:`battery-charging`.

LC-Display
**********

This display shows the most important status information.

A detailed description of the LCD can be found in :ref:`lc-display`.


Access to the On-Board Computer
*******************************

An HDMI socket, a USB socket and an Ethernet port can be used to work on the computer and to prepare the robot for the next application.