= KAGRA VIS Operations Manual - SR2 Suspension Reference = '''Cut and Pasted from BS - Needs Checking!!!''' == IP Optimum Position == (Updated for SR2) See klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7814|7814]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8160|8160]]. * IP L: -36 µm. * IP T: -25 µm. * IP Y: +4270 µrad. <> == Stepper Motor Info == ||Type ||Manufacturer ||Model ||Color code (A1/A2//B1/B2) ||Coil Ω @Motor ||Coil Ω @Connector ||@Flange || ||GAS Vertical ||Arun Microelectronics (AML) ||D42.2-HX ||green/grey//black/white ||5.5Ω ||7.1Ω ||9.4Ω || ||PI Yaw ||Phytron ||VSS 25.200.0.6 ||yellow/red//blue/green ||5.2Ω || || || ||PI Horizontal ||?? ||?? || ||7Ω || || || (Updated for SR2) ||Stepper ||Controller ||Channel ||Effect of "Left" Cmd || ||BF GAS ||[[http://10.68.150.53|10.68.150.53]] ||0 ||Keystone Up || ||SF GAS ||[[http://10.68.150.53|10.68.150.53]] ||1 ||Keystone Up || ||F0 GAS ||[[http://10.68.150.53|10.68.150.53]] ||2 ||Keystone Up || ||IP H1 ||[[http://10.68.150.54|10.68.150.54]] ||0 ||IP Clockwise || ||IP H2 ||[[http://10.68.150.54|10.68.150.54]] ||1 ||IP Clockwise || ||IP H3 ||[[http://10.68.150.54|10.68.150.54]] ||2 ||IP Clockwise || ||F0 Y ||[[http://10.68.150.54|10.68.150.54]] ||3 ||SF/... Clockwise || <> == Pico Info == (Updated for SR2) ||Pico ||Controller ||Channel ||Colors ||Effect of "+" Cmd || ||IM_PIT ||[[http://10.68.150.24|10.68.150.24]]=SR2_IM ||1 ||red/white ||joystick UP = HR beam down, positive pitch; klog 6137 || ||IM_ROL ||[[http://10.68.150.24|10.68.150.24]]=SR2_IM ||2 ||red/white ||joystick UP = HR beam left, positive roll; klog 6137 || ||IM_YAW ||[[http://10.68.150.24|10.68.150.24]]=SR2_IM ||3 ||red/white ||joystick UP = IM clockwise, negative yaw; klog 6137 || ||BF_1 ||[[http://10.68.150.25|10.68.150.25]]=SR2_BF ||1 ||red/white || || ||BF_2 ||[[http://10.68.150.25|10.68.150.25]]=SR2_BF ||2 ||red/white || || <> == LVDT Info == <> === LVDT Coil Info === Measured ||Type ||Primary/Single/IN/1-6 ||Secondary/Double/OUT/2-7 ||Actuation/ACT/3-8 ||Reference || ||GAS Vertical ||117.4 Ω ||??75.4, 102.5 Ω ||214.0 Ω ||2018-06-26 || ||PI Horizontal 1/3 ||56.6 Ω ||118.4 Ω ||131.2 Ω ||2018-06-28 || ||PI Horizontal 2/3 ||55.5 Ω ||121.5 Ω ||129.6 Ω ||2018-06-28 || ||PI Horizontal 3/3 ||55.4 Ω ||122.9 Ω ||129.8 Ω ||2018-06-28 || === LVDT Coil Info SEPTEMBER === Measured ||Type ||Primary/Single/IN/1-6 ||Secondary/Double/OUT/2-7 ||Actuation/ACT/3-8 ||Reference || ||PI Horizontal 1/3 ||130.3 Ω ||62.6 Ω ||137.2 Ω ||2018-09-03 || ||PI Horizontal 2/3 ||125.9 Ω ||63.7 Ω ||138.2 Ω ||2018-09-03 || ||PI Horizontal 3/3 ||129.1 Ω ||62.8 Ω ||136.9 Ω ||2018-09-03 || <> === LVDT Driver Data === ||LVDT Driver S.N. ||Left card ||Stage ||Resistor value [ohm] ||Reference Signal ||Gain ||Right card ||Stage ||Resistor value [ohm] ||Reference Signal ||Gain || ||SR2: SN 7777777 ||R0 ||BF GAS ||59.2 ||4. Vpp ||4./5.02 = 0. ||R0 ||PI LVDT#1 ||50.1 ||4. Vpp ||4./5.02 = 0. || ||R1 ||SF GAS ||36.3 ||4. Vpp ||4./5.02 = 0. ||R1 ||PI LVDT#2 ||50.6 ||4. Vpp ||4./5.02 = 0. || ||R2 ||F0 GAS ||59.6 ||4. Vpp ||4./5.02 = 0. ||R2 ||PI LVDT#3 ||51.2 ||4. Vpp ||4./5.02 = 0. || ||R3 ||Not used ||59.5 ||4. Vpp ||4./5.02 = 0. ||R3 ||Not used ||50.0 ||4. Vpp ||4./5.02 = 0. || <> == LVDT Calibration Info == Actual SR2 Data (not BS). ||LVDT ||Slope (cts/µm) ||Gain (µm/ct ||Nominal (cts) || ||BF GAS ||6.262 ||0.1600 ||-3425 || ||SF GAS ||- ||- ||- || ||PI GAS ||- ||- ||- || ||PI H0 ||- ||- ||- || ||BF H1 ||- ||- ||- || <> == OSEM Info == ||Location ||LED V ||PD V ||Coil Ω ||Coil Ω @Type 5 ||Coil Ω @SatAmp ||Coil Ω @Rack ||Notes || ||TM Nom ||- ||- ||11.3 ||14.8 || || || || ||H1 ||- ||- ||- ||- ||20.8 ||26.5 ||klog 6182, 6255 || ||H2 ||- ||- ||- ||- ||22.5 ||28.3 ||klog 6182, 6255 || ||H3 ||- ||- ||- ||- ||24.9 ||30.7 ||klog 6182, 6255 || ||H4 ||- ||- ||- ||- ||21.1 ||26.5 ||klog 6182, 6255 || ||IM ||1.051 ||0.47 ||11.3 ||14.8 || || || || <> == Magnet Info == ||Location ||Size (mm) ||Number ||Material || ||--(BS (Old))-- ||--(3xØ6)-- ||--(4)-- ||--(NdFeB)-- || ||BS (New) ||3xØ2 ||4 ||SmCo || ||IM ||10xØ10 ||2x6 ||NdFeB?? || ||SR Damper ||10x10x12 ||72 ||NdFeB?? || ||LBB Damper ||10x10x12 ||48 ||NdFeB?? || <> == Filter Info == ||Stage ||f (Hz) ||klog ||m (kg) ||klog ||k (N/m) ||klog ||kFR (N/m) ||klog || ||F0 ||0.5025 ||5688 ||252.8 ||4371 || || || || || ||SF ||0.27 (cap off); 0.235 (poor cap) ||4405;4401, ||162.9+0.8=163.7 ||4266 || || || || || ||BF ||0.461 ||4401 ||53.1-1.048=52.1 ||3971, 4002 || || || || || == GAS filters suitable positions == ||'''Filter''' ||'''LVDT readout (µm)''' ||'''klog''' ||'''Notes''' || ||'''F0''' ||-1100 ||[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7980|7980]] || || ||'''F1''' ||0 || || || ||'''BF''' ||0 || ||We require the IM-V OSEM flags to be at the correct position. || == Optimum Temperature == See klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7420|7420]].