Guide Stages

Old drawing

Guide X

Drawing:RCT001/5
EOS Drawing: SCH-4025-1
Manual: MM page 10-5
Scale: 2000 counts per millimeter
Motor:  
Motor Encoder: 
Limits:  two level on each side
Controller: 
X Stage: ATS100-100   Aerotech
X Drive Amplifier:Amp 1  
Homing: 
2mm/rev lead screw, 1000 line encoder For the ATS-100
Range: -202500 to +9500 (106mm)
MaxSpeed: 10000 cts/sec)
Encoder Zero: closed to positive end probe out of field of view

X-axis, positive motion is in negative declination.

Homing make take a minute.

Guide Y

Scale: 2000 counts per millimeter
Motor:  
Motor Encoder: 
Overall Encoder: 
Limits: none
Controller: 
Y Stage: ATS100-200
Y Drive Amplifier:Amp 2
Homing: 
2mm/rev lead screw, 1000 line encoder For the ATS-100
Range: -8500 to +403000 range is 205.75mm
Max Speed: 10,000 cts/sec
EncoderZero: close to negative end (out of FOV)

Probe is centered in the FOV at X=-189350, Y=+199500

Guide Z (Focus)

Scale: 8000 counts per millimeter
Motor Encoder: 
Limits: 
Controller: 
Z Stage: ATS03005
Z Drive Amplifier:Amp_3
Homing: 
0.5mm/rev lead screw, 1000 line encoder for the ATS-300
Range: -8500 to +429500 range : 54.75mm
MaxSpeed: 15000 cts/sec
EncoderZero: near negative range of motion:
Guidercollimated with camera: -8000???

May take 2 minutes to home.

Notes

EOS 11Sep2003
ProbeX -3350 X counts = +20 arc-seconds dec
ProbeY -3300 Y counts = -20 arc-seconds HA
ProbeZ +120000 Y counts =  +.325 mm Focus 

Software