Differences between revisions 13 and 14
Revision 13 as of 2007-03-02 14:49:58
Size: 4282
Editor: PierreRoyer
Comment:
Revision 14 as of 2007-03-07 06:23:24
Size: 6530
Comment:
Deletions are marked like this. Additions are marked like this.
Line 63: Line 63:

= Influence of disconnecting redundant connector =

|| || Script || TCL || Parameters || Comments ||
|| 1 || Disconnect redundant (connector open) || || || ||
|| 2 || PACS_switch_on.tcl || Yes ||
|| 3 || PACS_Phot_HK_Setup_OBS || || || ||
|| 4 || PACS_Phot_Fil_Diaghk_Setup_OBS || || || ||
|| 5 || CONF_phot_fltw_param_OBS || Yes || rate 100,drive_current 4096,threshold 2000 || ||
|| 6 || PACS_Phot_Fil_nturns_OBS || Yes || nturns : 6 || ||
|| 7 || CONF_phot_fltw_param_OBS || Yes || rate 100,drive_current 4096,threshold 4000 || ||
|| 8 || PACS_Phot_Fil_nturns_OBS || Yes || nturns : 6 || ||
|| 9 || PACS_Diaghk_Reset_OBS || || || ||
||10 || PACS_Spec_HK_Setup_OBS || || || ||
||11 || PACS_Spec_Fil_Diaghk_Setup_OBS || || || ||
||12 || CONF_spec_fltw_param_OBS || Yes || rate 100,drive_current 4096,threshold 2000 || ||
||13 || PACS_Spec_Fil_nturns_OBS || Yes || nturns : 6 || ||
||14 || CONF_spec_fltw_param_OBS || Yes || rate 100,drive_current 4096,threshold 4000 || ||
||15 || PACS_Spec_Fil_nturns_OBS || Yes || nturns : 6 || ||
||16 || PACS_Diaghk_Reset_OBS || || || ||
||17 || PACS_switch_off.tcl || || || ||
||18 || Short-circuit redundant connector || || || ||
||19 || Repeat steps 2-17 || || || ||

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

Loop over current from 10 to 100mA by steps 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.

4.1. Photometer filter wheel

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

5. Tuning the rate

The following test aims at checking the feasability and behaviour stability of the FWs operated at higher rates (= higher speed). The baseline rate = 100, corresponding to an angular speed of 360 degrees in 18.75 seconds.

5.1. Photometer filter wheel

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 : #turns of the FW

5

PACS_Diaghk_Reset_OBS

6

PACS_SAFE_MODE.tcl

6. Influence of disconnecting redundant connector

Script

TCL

Parameters

Comments

1

Disconnect redundant (connector open)

|| 2 || PACS_switch_on.tcl || Yes ||

3

PACS_Phot_HK_Setup_OBS

4

PACS_Phot_Fil_Diaghk_Setup_OBS

5

CONF_phot_fltw_param_OBS

Yes

rate 100,drive_current 4096,threshold 2000

6

PACS_Phot_Fil_nturns_OBS

Yes

nturns : 6

7

CONF_phot_fltw_param_OBS

Yes

rate 100,drive_current 4096,threshold 4000

8

PACS_Phot_Fil_nturns_OBS

Yes

nturns : 6

9

PACS_Diaghk_Reset_OBS

10

PACS_Spec_HK_Setup_OBS

11

PACS_Spec_Fil_Diaghk_Setup_OBS

12

CONF_spec_fltw_param_OBS

Yes

rate 100,drive_current 4096,threshold 2000

13

PACS_Spec_Fil_nturns_OBS

Yes

nturns : 6

14

CONF_spec_fltw_param_OBS

Yes

rate 100,drive_current 4096,threshold 4000

15

PACS_Spec_Fil_nturns_OBS

Yes

nturns : 6

16

PACS_Diaghk_Reset_OBS

17

PACS_switch_off.tcl

18

Short-circuit redundant connector

19

Repeat steps 2-17

Herschel: FmIltProc/FwControlloop (last edited 2009-07-15 14:32:36 by localhost)