1. Filter Wheel control loop procedures
2. Conditions
All tests described can be executed from SAFE MODE of from SPECTROSCOPY.
3. Threshold Tuning
3.1. Threshold parameter optimisation Photometer filter wheel
A loop over steps 3 & 4 can be implemented for a number of thresholds
|
Script |
TCL |
Parameters |
Comments |
1 |
PACS_Phot_HK_Setup_OBS |
|
|
|
2 |
PACS_Phot_Fil_Diaghk_Setup_OBS |
|
|
|
3 |
CONF_phot_fltw_param_OBS |
Yes |
rate,drive_current,threshold |
|
4 |
PACS_Phot_Fil_nturns_OBS |
Yes |
nturns : number of full turns of the FW |
|
5 |
PACS_Diaghk_Reset_OBS |
|
|
|
6 |
PACS_SAFE_MODE.tcl |
|
|
|
3.2. Threshold parameter optimisation Spectrometer filter wheel
A loop over steps 3 & 4 can be implemented for a number of thresholds
|
Script |
TCL |
Parameters |
Comments |
1 |
PACS_Spec_HK_Setup_OBS |
|
|
|
2 |
PACS_Spec_Fil_Diaghk_Setup_OBS |
|
|
|
3 |
CONF_spec_fltw_param_OBS |
Yes |
rate,drive_current,threshold |
|
4 |
PACS_Spec_Fil_nturns_OBS |
Yes |
nturns : number of full turns of the FW |
|
5 |
PACS_Diaghk_Reset_OBS |
|
|
|
6 |
PACS_SAFE_MODE.tcl |
|
|
|
4. Current loop
4.1. Photometer filter wheel
Loop over current from 10 to 100mA by step of 10. For each setting, performs nturns *OPEN LOOP* movements of 360 degrees (default = 3). Open loop movement means that the wheel is driven for a given time, depending on the size of the movement and the rate. Consequently, the movement might finally not be of the expected size.
|
Script |
TCL |
Parameters |
Comments |
1 |
PACS_Phot_HK_Setup_OBS |
|
|
|
2 |
PACS_Phot_Fil_Diaghk_Setup_OBS |
|
|
|
3 |
CONF_phot_fltw_param_OBS |
Yes |
rate,drive_current,threshold |
|
4 |
PACS_Phot_Fil_Current_Loop_OBS |
No |
nturns : #turns of the FW/current setting |
|
5 |
PACS_Diaghk_Reset_OBS |
|
|
|
6 |
PACS_SAFE_MODE.tcl |
|
|
|