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public:catalinas:lemmon:schulman_32:schulman_telescope_hand_paddle [2016/11/04 19:13]
adam
public:catalinas:lemmon:schulman_32:schulman_telescope_hand_paddle [2019/06/07 12:03] (current)
davner ↷ Page moved from public:lemmon:schulman_32:schulman_telescope_hand_paddle to public:catalinas:lemmon:schulman_32:schulman_telescope_hand_paddle
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 {{:hand_paddle.jpg?400|}} {{:hand_paddle.jpg?400|}}
  
-  * The Red button at the top of the paddle is an Emergency Stop (E-Stop) plunger. Pressing this button will de-energize the brakes (causing them to clamp down) and disconnect the drives from the telescope. The E-stop plunger on the {{:telescope_controller.jpg?linkonly|telescope controller}} works in the same way.+  * The Red button at the top of the paddle is an Emergency Stop (E-Stop) plunger. Pressing this button will de-energize the brakes (causing them to clamp down) and disconnect the drives from the telescope. The E-stop plunger on the {{:telescope_controller.jpg?linkonly|telescope controller}} works in the same way. Gently twist an engaged E-stop plunger to release it
   * Moving the joystick will send commands to the controller to move the telescope. In this implementation moving the joystick will result in a single commanded JOG (moving the telescope of a set number of arcminutes). The behavior is NOT as is customary with the paddle moving the telescope continuously while using the joystick (like a remote controlled toy or video game). Holding the joystick in a particular direction will not initiate further motion. The joystick must be permitted to return to the neutral (central) position for another JOG. In addition, a first JOG must be completed with the telescope settling to the new position before another JOG will be possible.    * Moving the joystick will send commands to the controller to move the telescope. In this implementation moving the joystick will result in a single commanded JOG (moving the telescope of a set number of arcminutes). The behavior is NOT as is customary with the paddle moving the telescope continuously while using the joystick (like a remote controlled toy or video game). Holding the joystick in a particular direction will not initiate further motion. The joystick must be permitted to return to the neutral (central) position for another JOG. In addition, a first JOG must be completed with the telescope settling to the new position before another JOG will be possible. 
   * The magnitude of the JOG is determined by adjusting the not-currently-well-named //SPEED// knob. Recommended JOG magnitudes for centering in an eyepiece are 1-5. The largest jogs move the telescope a degree or more. If the telescope servos are not tuned properly (or the telescope is out-of-balance) this can be problematic.     * The magnitude of the JOG is determined by adjusting the not-currently-well-named //SPEED// knob. Recommended JOG magnitudes for centering in an eyepiece are 1-5. The largest jogs move the telescope a degree or more. If the telescope servos are not tuned properly (or the telescope is out-of-balance) this can be problematic.  
 +  * The other knobs and buttons are not currently in service (including the station, "Fast", or "Next/park").
 +
 +=== NOTE: Paddle Error from Experience! ===
 +
 +If the paddle is ever inadvertently dropped, there is a small chance the E-stop will be pressed. This will do its job and bring the system to a halt- but no sirens will be heard. (It should be possible to hear the brakes clamp down...but in a crowded observatory filled with people this may not be obvious. The E-Stop light on {{:telescope_controller.jpg?linkonly|the controller}} will light up.) The telescope tracking will suddenly be observed to be OFF. In order to recover, the fault must be cleared using the LCOGT GUI. 
 +
public/catalinas/lemmon/schulman_32/schulman_telescope_hand_paddle.1478311982.txt.gz · Last modified: 2016/11/04 19:13 by adam