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--- chara:trouble_shooting [2023/07/06 07:49]
gail_stargazer
+++ chara:trouble_shooting [2023/10/24 20:06]
gail_stargazer
@@ Line 195: / Line 195: @@
 S2's acquisition server resides on "S2pi4" computer. Logging on to it (ssh s2pi4) and running bootlaunch will restart it
+==== Focusing the Telescope ====
+  - Fully align beacon to labao and TWFS, especially making sure the focus terms between the two agree very well.
+  - Open a secondary gui: mergurygtk W2_SECONDARY.
+  - Note the current M2 actuator positions and send them to Nic for the log.
+  - Turn off the beacons and lock the star on TWFS tiptilt.
+  - Turn the servo on in the mercurygtk gui.
+  - On the align tab of the wfsgtk there is a button for FOCUS SCOPE.
+  - Press the button.
+  - When done the focus term of starlight on the TWFS should be zero.
+  - Turn off the servo on the mercury_gtk gui.
+A couple of notes:
+  * If large moves of M2 are made, tiptilt tracking may be lost. Pay careful attention so that M2 doesn't get driven away crazily due to lost light.
+  * If it takes too long to start the autofocus procedure, the mercury_gtk servo will automatically turn off and nothing will happen. So just make sure the servo is on right before hitting the FOCUS SCOPE button.
 ===== Dome issue =====
@@ Line 229: / Line 246: @@
 ==== LabAO Shutters Not Working ====
-If the labao shutters are not working, the power button on each of the two red control boxes on the top of the table might need to be pressed. After that the other button needs to be pressed and held for 5 seconds so that the units can be controlled remotely. (Note: look for instructions on table.)
+<font 10.5pt font-family:/inherit;;#333333;;inherit>If the labao shutters are not working, the power button on each of the two red control boxes on the top of the table might need to be pressed. After that the other button needs to be pressed and held for 5 seconds so that the units can be controlled remotely. (Note: look for instructions on table.) A good way for this step is to manually set the shutter to the opposite state that it is in remotely, keep pressing the “enable” button until you hear a slight click. Release. The shutter should now change state.</font>
+<font 10.5pt font-family:/inherit;;#333333;;inherit>If this does not work, or the other CHARA shutters are not working then a reboot is required. The order of restart needs to be correct for all shutters to work again (not shutters on insturment tables which are controlled by instrument servers).</font>
+<font 10.5pt font-family:/inherit;;#333333;;inherit>Turn off electronics box for shutters (above the GPS computer). Reboot the gps computer. Check to see that the shutter server is running by typing bootlaunch_master on gps computer. If running, turn on shutter electronics box (you just rebooted gps computer so restart gps server).</font>
 ==== LabAO DM Electronics ====
@@ Line 251: / Line 272: @@
 ==== Homing carts ====
-  *
+  * To home the carts, turn off the [OL] and [MAN] buttons on each cart and it will automatically return to the front switch. If the cart has no issue, it will arrive at the target position of 0m and the home switch at the same time. The X in the OPLE server under the HM will indicate it has stopped on the home switch. If a cart does not reach the home switch when it returns to position 0m, it was lost and likely the cause of the difficulty in finding fringes. The X does not guarantee the cart has retained its home position. This home position can be checked by using the CHECK button on the ople gui or by typing the command “homechk S1” into the ople server. When the error value is displayed on the ople server, hit ESC to clear the display. Click on the [OL] and [MAN] buttons and hit [TRACK] to send the cart to the desired cart position.
-To home the carts, turn off the [OL] and [MAN] buttons on each cart and it will automatically return to the front switch. If the cart has no issue, it will arrive at the target position of 0m and the home switch at the same time. The X in the OPLE server under the HM will indicate it has stopped on the home switch. If a cart does not reach the home switch when it returns to position 0m, it was lost and likely the cause of the difficulty in finding fringes. The X does not guarantee the cart has retained its home position. This home position can be checked by using the CHECK button on the ople gui or by typing the command “homechk S1” into the ople server. When the error value is displayed on the ople server, hit ESC to clear the display. Click on the [OL] and [MAN] buttons and hit [TRACK] to send the cart to the desired cart position.
 ==== Metrology ====
-  *
+  * Good metrology signals are important to the proper positioning of the carts. Monitor the signal strength by running [RUN MULTIPLE] on the Metrology Monitor. Place the windows above the TV windows for each scope you are using. They should show white sine waves that are around the height of the window. Erratic, fluctuating waves indicate self-interference or a weak signal. This may cause the carts to lose their place as the signal strength falls too low. Red waves indicate that some displayed signal has gone too low and the carts will all need to be homed. A careful adjustment of the MET2 mirror can sometimes bring the signal back. Do not adjust the MET1 mirror
-Good metrology signals are important to the proper positioning of the carts. Monitor the signal strength by running [RUN MULTIPLE] on the Metrology Monitor. Place the windows above the TV windows for each scope you are using. They should show white sine waves that are around the height of the window. Erratic, fluctuating waves indicate self-interference or a weak signal. This may cause the carts to lose their place as the signal strength falls too low. Red waves indicate that some displayed signal has gone too low and the carts will all need to be homed. A careful adjustment of the MET2 mirror can sometimes bring the signal back. Do not adjust the MET1 mirror
 Steps for adjusting MET2:
@@ Line 451: / Line 468: @@
 Follow instructions in the [[:chara:mircx_monitors|linked page to display the MIRC-X wolverine2 monitors]] in the control room.
+==== No Power for Aperture Wheels ====
+To minimize heat sources in the lab, the power for the apwheels is turned off. If you need to use aperture wheels during the night, the operator will need to plug the power into the outlet next to the metrology table (see photo below). If there are any communication issues after plugging in the power, try restarting the server using bootlaunch on ctrscrut. It's probably a good idea to home the apwheels after turning on the power.
+{{:chara:d859af0efb2dab690d3a44526d7b8afc.png}}
  \\

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