This is the Safety Limit setting screen. It is
also described on the
Note: Safety Limits may not take effect until you power down and back up.
This has been my experience. The writer of the code says they take
effect when set.
The limits can be set either using the Web interface, on the Mount
Selection Page, (it is under Menu-->Mount-->Limits) or on the menu
to the left.
Note that the Web limits are set for left and right side, while the hand
controller uses East and West. If
using the hand controller, follow these steps. (The hand controller
method only works correctly on August 16 or later firmware.) Also the safety limits are referenced to the CCW startup position. If you did not start up with a Cold start, or Warm Start with the mount at CCW, you must do this before setting the limits.
It a very bad idea to start up with a "Warm Restart" and assume that the Gemini 2 has remembered the CCW. You can tell the Gemini-2 to part at CCW to make sure it knows where CCW is.
Turn off tracking by placing the mount into Terrestrial mode.
Move the RA using the Left-Right buttons to the Eastern Limit.
NOTE: ALWAYS START WITH THE EAST LIMIT. Loosen the clutch in Dec. Make sure you can spin the telescope in Dec without it hitting the mount. Use the
Menu->Mount->Limits->"Set Limits Here" button, to set the Eastern Limit.