KAGRA VIS Operations Manual - BS Suspension Reference
Stepper Motor Info
Type |
Manufacturer |
Model |
Coil resistance |
Color code (A1/A2//B1/B2) |
|
GAS Vertical |
Arun Microelectronics (AML) |
D42.2-HX |
5.5Ω |
green/grey//black/white |
|
PI Yaw |
Phytron |
VSS 25.200.0.6 |
5.2Ω |
yellow/red//blue/green |
|
PI Horizontal |
?? |
?? |
7Ω |
|
|
Stepper |
Controller |
Channel |
"Left" |
BF GAS |
0 |
Up |
|
SF GAS |
1 |
Up |
|
F0 GAS |
2 |
Up |
|
PI H0 |
0 |
?? |
|
PI H1 |
1 |
?? |
|
PI H2 |
2 |
?? |
|
PI Yaw |
3 |
Clockwise |
LVDT Info
Note: As 2017-05-30, the Primary and Secondary of the PI Horizontal LVDTs are swapped relative to the table.
Type |
Primary/Single/IN/1-6 |
Secondary/Double/OUT/2-7 |
Actuation/ACT/3-8 |
GAS Vertical |
AWG36, 187Ω, 38 mH |
AWG32, 78Ω, 9.5 mH |
AWG32, 110Ω, 74 mH |
PI Horizontal |
250 Ω |
320 Ω |
155 Ω |
Pico Info
Pico |
Controller |
Channel |
Colors |
BS_IM |
1 |
red/white |
|
BS_IM |
2 |
red/white |
|
BS_IM |
3 |
red/white |
|
BS_BF |
1 |
red/white |
|
BS_BF |
2 |
red/white |