This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
chara:trouble_shooting [2021/11/04 17:21] charaobs [Can't find fringes] |
chara:trouble_shooting [2021/11/04 18:59] charaobs [Metrology and Homing carts] |
||
---|---|---|---|
Line 79: | Line 79: | ||
==== The Telescope won't move or stopped moving ==== | ==== 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** | + | \\ |
+ | 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/ | ||
+ | \\ | ||
+ | 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' | ||
+ | \\ | ||
+ | 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</ | ||
+ | |||
+ | <font 16px/ | ||
+ | |||
+ | <font 14px/ | ||
+ | \\ | ||
+ | <font inherit/ | ||
+ | \\ | ||
+ | <font inherit/ | ||
+ | |||
+ | <font 14px/ | ||
+ | |||
+ | <font 14px/ | ||
+ | |||
+ | <font 14px/ | ||
+ | |||
+ | <font 14px/ | ||
==== The Telescope won't track ==== | ==== The Telescope won't track ==== | ||
Line 269: | Line 303: | ||
* 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. | ||
- | * 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 homed to 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. Hit the [HOME] button and it should move forward and trigger the home switch. Hit [TRACK] to home it to the new home 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 homed to 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. You can also find the size of the error by typing the command " |
===== Beam Samplers ===== | ===== Beam Samplers ===== |