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--- chara:trouble_shooting [2021/11/04 17:21]
charaobs [Can't find fringes]
+++ chara:trouble_shooting [2021/11/04 18:12]
charaobs [The Telescope won't move or stopped moving]
@@ Line 79: / Line 79: @@
 ==== The Telescope won't move or stopped moving ====
- \\ Have the powers been turned on to the drives? Are the scopes disabled? The usual state of the telescopes is disabled until enabled. This is due to the stall function of the scopes which eventually disables the scopes when they are stowed. Enable the scopes by hitting [ENABLE] on the dome gui or in the telescope gui control tab. If a scope disables itself during a slew, it may be just an overcautious stall function. Hit ENABLE and the scope should continue to slew. If it disables again without moving, there may be something wrong at the scope, ie. a hatch left open, a ladder not put away, a tool on the floor, or something else physically impeding the motion of the scope. You will need to go to the dome to see what it is. The computer in the dome will give you control of the scope to turn it away from the problem. \\  \\ Sometimes the dome guis get hung up and can cause erratic motion or no motion of the scopes. Check them for current times and continuous updates of numbers. If they are not updating, try to REOPEN them first. If that does not work, close the gui and open a new one. If a new one does not open, the dome server may be dead or Sockman lost track of it. See **Dome Server Restart**  below. \\  \\ **Azimuth Limit Switches** \\  \\ As of 11-'17, the azimuth limit switches are enabled and can stop the motion of the scopes if they try to go beyond -90º or +450º. The scopes will not be movable with normal inputs so follow these instructions to return them from the out of range condition. \\  \\ 1. On the domegui MANUAL tab, click STOP so pulses won't be sent to the drive by the control software. \\  \\ 2. Make sure you understand why the limit was hit which may require a trip to the telescope. \\  \\ 3. Click the OVERRIDE ON button in domegui MANUAL tab. After this, the hardware doesn't care about the limits switches and you're free to move the telescope. \\  \\ 4. Click ENABLE then you can move the telescope back to its normal range of operation. \\  \\ 5. After the telescope is back in it normal range, click OVERRIDE OFF which makes the hardware aware of the limits again.
+\\
+Have the powers been turned on to the drives? Are the scopes disabled? The usual state of the telescopes is disabled until enabled. This is due to the stall function of the scopes which eventually disables the scopes when they are stowed. Enable the scopes by hitting [ENABLE] on the dome gui or in the telescope gui control tab. If a scope disables itself during a slew, it may be just an overcautious stall function. Hit ENABLE and the scope should continue to slew. If it disables again without moving, there may be something wrong at the scope, ie. a hatch left open, a ladder not put away, a tool on the floor, or something else physically impeding the motion of the scope. You will need to go to the dome to see what it is. The computer in the dome will give you control of the scope to turn it away from the problem.\\
+\\
+Sometimes the dome guis get hung up and can cause erratic motion or no motion of the scopes. Check them for current times and continuous updates of numbers. If they are not updating, try to REOPEN them first. If that does not work, close the gui and open a new one. If a new one does not open, the dome server may be dead or Sockman lost track of it. See **Dome Server Restart** below.\\
+\\
+**Azimuth Limit Switches** \\
+\\
+<font 14px/Arial,Helvetica,sans-serif;;inherit;;inherit>As of 11-'17, the azimuth limit switches are enabled and can stop the motion of the scopes if they try to go beyond -90º or +450º. The scopes will not be movable with normal inputs so follow these instructions to return them from the out of range condition.\\
+\\
+. On the domegui MANUAL tab, click STOP so pulses won't be sent to the drive by the control software.\\
+\\
+. Make sure you understand why the limit was hit which may require a trip to the telescope.\\
+\\
+. Click the OVERRIDE ON button in domegui MANUAL tab. After this, the hardware doesn't care about the limits switches and you're free to move the telescope.\\
+\\
+. Click ENABLE then you can move the telescope back to its normal range of operation.\\
+\\
+. After the telescope is back in it normal range, click OVERRIDE OFF which makes the hardware aware of the limits again</font>.
+<font 16px/Calibri,sans-serif;;#333333;;white>**However, If you notice that a telescope will stop near AZ 90 or 270 with the scope still being ENABLED and refusing to move, this is often due to the new AZ limit switch being tripped at some point earlier. To get it moving again:**</font>
+<font 14px/Arial,Helvetica,sans-serif;;#333333;;white>1. On the domegui MANUAL tab, click STOP so pulses won't be sent to the drive by the control software.</font>  \\
+\\
+<font inherit/inherit;;initial;;white>2. M</font>ake sure the all the scopes’ demand positions agree – for example, sometimes bringing a scope to a configuration that’s already on sky and issuing a slew command will make the additional scope go around North the “wrong” way.\\
+\\
+<font inherit/inherit;;initial;;white>3. Click the OVERRIDE ON button in domegui MANUAL tab.</font>
+<font 14px/Arial,Helvetica,sans-serif;;#333333;;inherit>4. Move the scope a bit back toward the direction it was coming from – for example, if the scope stopped at AZ 268 while rotating clockwise, move it back to 265 or so using AZ DEC. Then press STOP.</font>
+<font 14px/Arial,Helvetica,sans-serif;;#333333;;inherit>5. Move the scope past AZ 270 by pressing AC INC. Usally 2-4 degrees will do.</font>
+<font 14px/Arial,Helvetica,sans-serif;;#333333;;inherit>6. Click OVERRIDE OFF, go to the AUTO tab and press AUTO, then NEXT (also in the obsgtk; this will restore the original star's demand position to the scope).</font>
+<font 14px/Arial,Helvetica,sans-serif;;#333333;;inherit>7. When you have time, go to the scope and reset the limit switch; otherwise, it will stop each time you pass AZ 270/90.</font>
 ==== The Telescope won't track ====

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