Procedures

Preparing telescope systems to take dome flats

Prepare everything to move telescope and dome

1. Turn HBS on
2. Raise M1
3. Put SCS in follow mode
4. Cass rotator on
5. Locking pins out
6. Dome in computer mode
7. Init dome
8. Set the Deployable Baffles to RETRACTED and the periscope to OPEN
9. Be sure that the mirror cover and instrument cover are open
10. Move telescope, CRCS and dome to:
11. Telescope at Az= 265deg, Elev=+45 
12. Rotator= 180deg
13. Dome Az at 185deg.
14. Disassert the Az/El and CassRot drives - this breaks the telescope in place

Once the flats are done

1. Take the telescope back to Zenith
2. Turn HBS off
3. Park M1
4. Remove SCS from follow mode
5. Locking pins in
6. Close mirror and instrument covers
7. Leave Dome control in off
8. CRCS off

Troubleshooting TIPS

VMEs NEW
VME systems consoles.
To open VME consoles you can open in any of the Control room screens a terminal window and type console "system name" (example: console PCS, console CRCS)

Systems that don't start automatically.
To get them to start, open the system console by typing
console "system name"
once you have the system prompt type
<startup

CRCS NEW
How to solve a limit condition in Casswrap (by Rolando Rogers).

The procedure to recover from a CRCS wrap limit fault is the following:

1.       Go to 4^th floor to visually inspect the cass rotator cable chains and make sure nothing is broken.

2.       Dissasert the CRCS in the dm screen (THIS IS VERY IMPORTANT to do, otherwise you will continue getting the fault as soon as you reset GIS)

3.       While in the 4^th floor, reset GIS faults by pushing F1 in AB display

4.       Then issue a CENTERWRAP command form the dm screens. PLEASE NOTE that you DON’T need to assert the drives, the centerwarp command will do it for you.

5.       Wait till the command is over and go to IDLE  state after 2 or 3 minutes.

6.       Reset GIS AB display again.

7.       You are ready to go and you don’t need to assert the drives again as the centerwrap command did it for you.

Young model 81000 Ultrasonic Wind Sensor setup NEW
How to setup ultrasonic wind sensors
Link to setup procedure in DMT