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Software Requirements
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Action
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Notes
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Turn on motor
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Turn off motor
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Required Adjustable Settings (for initial setup, tuning etc.)
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Setting
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Notes
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Motor speed
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Required Telemetry
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Parameter
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Report Frequency
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Notes
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Motor RPM
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once per minute (TBC)
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ensures agitator is running
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Motor current
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once per minute (TBC)
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ensures agitator is running properly; higher motor current could indicate wear or snags
Required Alarms
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Parameter
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Threshold
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Notes
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Motor RPM low
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TBD
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Motor current high
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Table of Contents:
| Table of Contents |
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Introduction
The agitator consists of a motor with a rotating reel that taps against hanging loops of fiber. This continually changes the paths of the light rays through the fibers, thereby smoothing/homogenizing the output illumination of the fibers.
The motor is controlled by a Galil DMC-30012 controller.
Two temperature sensors are also connected to the Galil controller - one to measure the temperature of the motor, and one to measure the air temperature within the crypt.
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Relevant Devices
Description | Qty | Source | Part Number |
|---|---|---|---|
Motor Controller | 1 | Galil | DMC-30012-BOX (ISCNTL) |
Motor and Encoder | 1 | Galil | BLM-N23-50-1000-B |
Power Supplies1 | 2 | Galil | PS-2.50-24 |
Power Cable | 1 | Galil | PWRCBL-30012-ISCNTL |
Emergency Stop Switch | 1 | Rockler.com | Safety Power Tool Switch |
Temperature Sensor | 2 | Analog Devices | AD592BNZ |
1: the option was chosen to use two power supplies: one powers the controller and one powers the motor.
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Relevant Functional Block Diagrams
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Agitator Temperature Sensors
Note: the Agitator temperature sensors are reporting values that are about 2x the actual temperature. As of June 2023, we have not yet determined the cause of this.
Temperature Sensor Wiring Diagram:
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Temperature Sensor Details:
Topic | Description | Notes |
|---|---|---|
Diagram of the measurement circuit used for the temperature sensors. | 
V = I*R
| Originally from Dale Sandford (UCO). |
Galil ADC calculations for the AD592 temperature sensors. | 12 bit over 5V = 0.001 V per ADU; | Based on values within datasheet below. |
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Pictures of Devices
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Relevant Datasheets & Manuals
Description | File | Source | |||||
|---|---|---|---|---|---|---|---|
| 1 | Galil DMC-3x01x Datasheet |
| http://www.galilmc.com/motion-controllers/single-axis/dmc-3x01x#info=0 | ||||
| 2 | Galil DMC-30000 Manual |
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| 3 | AD592BNZ Temperature Sensor Datasheet |
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