Stage Numbers

Stage Number Stage Name Stage Type API Unit API Output Bits Encoder Limits Reference Position Standard Displacement
Min Max Encoder Name Encoder Steps Motor Steps
0 grating turret encoder 2 00000000 6994 1706175 varies varies
1 grating turret detent limit 2 00000001 n/a n/a n/a n/a n/a 180000
2 grating brake limit 1 00000000 n/a n/a n/a n/a n/a 450000
3 grating tilt encoder 0 10000000 -8860 54000 n/a n/a
4 red filter selector encoder 3 00000100 597480 1400154 600000 Pos'n 1 160024 206475
5 red filter changer encoder 3 00000101 1277791 1440500 1440000 In box 162209 208000
6 blue filter carousel encoder 0 00000000 0 65535 0 Pos'n 1 10922.67 256000
7 blue filter transport limit 0 10000000 n/a n/a n/a n/a n/a 1114500
8 red camera focus encoder 3 00001011 1005000 1079000 n/a n/a n/a n/a
9 slitmask selector encoder 3 00000000 920282 2001797 2000000 Pos'n 1 -119967 154611
10 slitmask changer encoder 3 00000001 1258110 1440074 1440000 in box 181890 235000
11 offset guider focus (M1) encoder 3 00001110 ? ? 1440000 n/a n/a n/a
12 offset guider pos (M2) encoder 3 00001111 ? ? 1440000 n/a n/a n/a
13 offset guider filter blind 1 00000010 n/a n/a n/a n/a n/a -25300
14 slitview guider filter blind 1 00000011 n/a n/a n/a n/a n/a -25300
15 trapdoor limit 3 000001010 n/a n/a n/a n/a n/a 280000
16 polar calibration discrete 1 10000111 n/a n/a n/a n/a n/a 4267
17 polar waveplate encoder 1 00001000 -100000000 100000000 0 n/a n/a n/a
18 blue camera focus LVDT 0 00000000 -11000 11000 n/a n/a n/a n/a
19 dichroic carousel encoder 0 00000000 0 65535 0 Pos'n 1 13107.20 307200
20 dichroic transport limit 0 10000000 n/a n/a n/a n/a n/a 1623000
21 grism carousel encoder 0 00000000 0 65535 0 Pos'n 1 10922.67 256000
22 grism transport limit 0 10000000 n/a n/a n/a n/a n/a 1104000

Grating Turret Positions

See file /kroot/kss/lris/common/fiord/info.data/grating_enc.dat

Position Encoder
Position		 Grating in
Service Port		 Grating in
Optical Port
1 6554298 5  
2 6742787   2
3 6931739 4  
4 7120373   1
5 7309309 3  
6 7498327   5
7 7687089 2  
8 7875952   4
9 8064709 1  
10 8253292   3

Red Filter Selector Positions

See file /kroot/kss/lris/common/fiord/info.data/redfnum_enc.dat

Position Encoder Position
1 600000
2 760081
3 920042
4 1080098
5 1240123
6 1400154

Slitmask Selector Positions

See file /kroot/kss/lris/common/fiord/info.data/slitmask_enc.dat

Position Encoder Position
1 2000000
2 1880026
3 1760066
4 1640084
5 1520130
6 1400170
7 1280208
8 1160226
9 1040274
10 920282

Dichoric Carousel Positions

See files /kroot/kss/lris/common/fiord/info.data/dichroic_enc.dat and /kroot/kss/lris/common/fiord/info.data/dichroic_load_enc.dat

Position Encoder Stow/Deploy Position Encoder Load Position
1 0 13100
2 13100 26204
3 26204 39316
4 39316 52420
5 52420 0

Grism Carousel Positions

See files /kroot/kss/lris/common/fiord/info.data/grism_enc.dat and /kroot/kss/lris/common/fiord/info.data/grism_load_enc.dat

Position Encoder Stow/Deploy Position Encoder Load Position
1 0 60075
2 54616 49152
3 43692 38229
4 32760 27307
5 21836 16384
6 10928 5461

Blue Filter Carousel Positions

See files /kroot/kss/lris/common/fiord/info.data/blufnum_enc.dat and /kroot/kss/lris/common/fiord/info.data/blufnum_load_enc.dat

Position Encoder Stow/Deploy Position Encoder Load Position
1 0 10928
2 54616 0
3 43692 54616
4 32760 43692
5 21836 32760
6 10928 21836