= KAGRA VIS Operations Manual - SR3 Suspension Reference =
<<Anchor(stepper)>>

== IP Optimum Position ==
See klog 7783.
 * H1: -2474 µm.
 * H2: -2624µm.
 * H3: -2191 µm.
 * L: 82 µm.
 * T: -212 µm.
 * Y: -4091 µrad.

== Stepper Driver Info ==
||Stepper ||Controller ||Channel ||"Left" ||
||BF GAS ||[[http://10.68.150.54|10.68.150.54]] ||0 ||Up ||
||SF GAS ||[[http://10.68.150.54|10.68.150.54]] ||1 ||Up ||
||F0 GAS ||[[http://10.68.150.54|10.68.150.54]] ||2 ||Up ||
||PI H0 ||[[http://10.68.150.55|10.68.150.55]] ||0 ||?? ||
||PI H1 ||[[http://10.68.150.55|10.68.150.55]] ||1 ||?? ||
||PI H2 ||[[http://10.68.150.55|10.68.150.55]] ||2 ||?? ||
||PI Yaw ||[[http://10.68.150.55|10.68.150.55]] ||3 ||Clockwise ||

== Fancy Stepper Driver ==
||IP L||+5000 steps -> ≈+??? µm IP-L||
||IP T||+5000 steps -> ≈+70 µm IP-T||
||IP Y||+5000 steps -> ≈+??? µrad IP-Y||
||F0 Y||+50 steps -> ≈'''-'''50 µrad OL-Y  ||

== 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 ||||<style="text-align:center">yellow/red//blue/green ||
||PI Horizontal ||?? ||?? ||7Ω || ||


<<Anchor(pico)>>

== Pico Info ==
||Pico ||Controller ||Channel ||Colors ||
||IM_PIT ||[[http://10.68.150.26|10.68.150.26]]=SR3_IM ||1 ||red/white ||Joystick Up = +pitch ||
||IM_ROL ||[[http://10.68.150.26|10.68.150.26]]=SR3_IM ||2 ||red/white || ||
||IM_YAW ||[[http://10.68.150.26|10.68.150.26]]=SR3_IM ||3 ||red/white || ||
||BF_1 ||[[http://10.68.150.27|10.68.150.27]]=SR3_BF ||1 ||red/white || ||
||BF_2 ||[[http://10.68.150.27|10.68.150.27]]=SR3_BF ||2 ||red/white || ||


<<Anchor(lvdt)>>

== LVDT Info ==
<<Anchor(lvdtcoil)>>

=== LVDT Coil Info ===
'''Copied from BS - check!'''
||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 ||




Measured
||Type ||Primary/Single/IN/1-6 ||Secondary/Double/OUT/2-7 ||Actuation/ACT/3-8 ||Reference ||
||GAS Vertical ||111.3 Ω ||131.2 Ω ||208.4 Ω ||2018-06-26 ||
||PI Horizontal 1/3 ||55.4 Ω ||122.5 Ω ||130.3 Ω ||2018-06-28 ||
||PI Horizontal 2/3 ||53.3 Ω ||120.4 Ω ||134.2 Ω ||2018-06-28 ||
||PI Horizontal 3/3 ||54.0 Ω ||120.9 Ω ||133.3 Ω ||2018-06-28 ||




<<Anchor(lvdtdriver)>>

=== LVDT Driver Info ===
||LVDT Driver S.N. ||Left card ||Stage ||Resistor value [ohm] ||Reference Signal ||Gain ||Right card ||Stage ||Resistor value [ohm] ||Reference Signal ||Gain ||
||<style="text-align:center" |4>SR3: SN 1807783 ||R0 ||BF GAS ||60.0 ||4.90 Vpp ||4.90/5.02 = 0.976 ||R0 ||PI LVDT#1 ||50.7 ||4.90Vpp ||4.90/5.02 = 0.976 ||
||R1 ||SF GAS ||60.7 ||4.86 Vpp ||4.86/5.02 = 0.968 ||R1 ||PI LVDT#2 ||50.7 ||4.88 Vpp ||4.88/5.02 = 0.972 ||
||R2 ||F0 GAS ||60.9 ||4.86 Vpp ||4.86/5.02 = 0.968 ||R2 ||PI LVDT#3 ||50.0 ||4.88 Vpp ||4.88/5.02 = 0.972 ||
||R3 ||Not used ||60.7 ||4.86 Vpp ||4.86/5.02 = 0.968 ||R3 ||Not used ||50.9 ||4.86 Vpp ||4.86/5.02 = 0.968 ||


<<Anchor(magnet)>>

== Magnet Info ==
||Location ||Size (mm) ||Number ||Material ||
||SR ||5xØ2 ||4 ||SmCo ||
||IM ||10xØ10 ||2x6 ||SmCo ||
||SR Damper ||10x10x12 ||72 ||NdFeB?? ||
||LBB Damper ||10x10x12 ||48 ||NdFeB?? ||


<<Anchor(frequency)>>

== Resonant frequency ==
||Stage ||Measured resonant frequency [Hz] ||Q factor ||Assumed resonant frequency (SUMCON) [Hz] ||Reference ||
||F0 GAS ||0.5 ||19 ||0.3 ||klog 5446 ||
||SF GAS ||0.34 ||27.03 ||0.5 ||klog 5334 ||
||BF GAS ||0.417 ||22.28 ||0.38 ||klog 5334 ||
||IP ||0.33 ||?? ||| klog 5926 ||klog 5926 ||


== GAS filter suitable positions ==
||<tablewidth="1020px" tableheight="225px">'''Filter'''||'''LVDT readout (µm)'''||'''klog'''||'''Notes'''||
||'''F0<<BR>>'''||-542||[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7900|7900]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8135|8135]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8501|8501]]||Depends on the F1 position because the F1 fishing rod is not operational.||
||'''F1'''||-721||[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7900|7900]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8135|8135]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8501|8501]]||The fishing rod does not work.||
||'''BF<<BR>>'''||0|| ||We require the IM-V OSEM flags to be at the correct position.||




== Updated models ==
||Name ||Data from CAD only ||Includes GAS freq. ||Change IP leg Stiffness ||Change IP Torsional Stiffness ||
||TypeB_SR3_.m ||Yes ||No ||No ||No ||
||TypeB_SR3_05092018_enzo_1.m ||Yes ||Yes ||No ||No ||
||TypeB_SR3_05092018_enzo_1.m ||Yes ||Yes ||No ||No ||
||TypeB_SR3_05092018_enzo_1.m ||0.33 ||Yes ||Yes ||No ||No ||

== Optimum Temperature ==
See klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7420|7420]].