Last updated: 12-13-01
Project: DEIMOS
Stage: Dewar Shutter
ID #: KDCS-001A
Engineer: D. Cowley
Mechanical Description of Stage:
Electronic Description of Stage:
Required setting accuracy:
Performance requirements and design goals
Component |
Requirements 1 |
Limits 2: Bimba reed switch MRS-.087-XBL-02 |
Two per cylinder, four total
|
Encoders: None |
|
Air Cylinders: 2 |
Bimba #MRS-025-DXP-UG
|
Air Solenoids: 2 |
Skinner #73419AN2NN00M1JO11C2
|
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Speed, temperature, accuracies, electrical power, pressurized air,
lubricant, coolant, N2 purge, ...
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Primary (inner) and secondary (outer) limits. These can be magnetic,
optical, or physical contact
Manufacturer's specifications and limitations
Component |
Maximum Operating Condition |
Safe Ops Condition |
Requirements |
Limits: |
|
|
|
Air Cylinders: |
|
|
40 PSI
|
Air Solenoids: |
|
|
40PSI
|
Final Mechanical Assembly and Testing Results
Tests performed by:
Motor tuning parameters under different spacial
orientations and environment
Parameter |
|
Set |
PID Filter: |
KD: |
[None]
|
KP: |
|
KI: |
|
Acceleration (pulses/sec^2): |
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Deceleration (pulses/sec^2): |
|
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Speed (pulses/sec): |
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Other: |
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|
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Uphill defined as motor (or driven end of shaft) in lowest position
Motion Parameters
Linear Stage (constrained)
Distance from "home" 1 |
Position |
Motor Counts |
Physical Units |
Time to Reach |
Software Limits: |
Forward |
|
|
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Reverse |
|
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Primary (inner) Limits: |
Forward |
|
|
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Reverse |
|
|
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Secondary (outer) Limits: |
Forward |
|
|
|
Reverse |
|
|
|
Position # |
IN |
|
|
? |
OUT |
|
|
? |
-
"Coarse" if from optical interupter, "Fine" if from an encoder index
pulse. Home is defined as zero counts.
-
Primary limits signal the controller to stop motion. Secondary limits
cut motor power and require intervention to move out of them.
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Gear reduction function:
-
Backlash:
-
Repeatability:
-
Fiducial:
-
Encoder:
-
Air Cylinders:
-
Air Solenoids:
NOTES:
Mechanical Drawing(s) #D5400
Electronic Drawing(s) #EL-1183, EL-1233
Sign conventions are such that a positive motion of the motor turns
the motor in a CW direction as viewed from the drive shaft looking back
into the motor, and will drive the stage towards the forward limit.