Control Room LEDs

The following table outlines the meaning of each of the control box LEDs.

Table 2: Control Room Lights and Signals.

Colour	Label	Description
Green	MOTOR POWER ON	The motor power is on. This means that both red emergency stop buttons are released and that the motors have power. Note: one button is at the top the tower near the ladder while the the other is in the control room.
Green	BRAKE OFF	The brakes have been released. This is necessary in order to move the telescope.
Green	MOTOR ENABLE BY SW	The software has enabled the motors. This is necessary in order to move the telescope.
Green	SCHUPMAN COVER OPEN	The Schupman cover is open. This is necessary in order to take observations.
Red	SCHUPMAN COVER CLOSE	The Schupman cover is closed. This is necessary after observations to protect the output window.
Red	MOTOR POWER OFF	One or both red emergency stop buttons are depressed.
Red	BRAKE ON	The brakes are applied so that the telescope cannot move.
Red	AZ CW SWITCH MOVE CCW	Azimuth has hit an endstop. Move azimuth in the counter-clockwise direction using the service program (see appendix B).
Red	AZ CCW SWITCH MOVE CW	Azimuth has hit an endstop. Move azimuth in the clockwise direction using the service program (see appendix B).
Red	EL CCW SWITCH MOVE CW	Elevation has hit an endstop. Move the elevation in the clockwise (-) direction.
Red	EL CW SWITCH MOVE CCW	Elevation has hit an endstop. Move the telescope in the counter-clockwise (+) direction.
Red	TELESCOPE CABLE PIPE	The white azimuth cable pipe has become detached from the holder under the azimuth counter weight. See section A.1