OEDCS

Oxygen Engine Digital Control System, enclosure for.

As of 2024 the Enclosure has Evolved to a 3U rack mount

Simplified view of enclosure before connector and other holes added.

Exploded view of enclosure parts and the "Plant Panel" too

Notes on BIG Enclosure Unit Fabrication of Spring 2023

• Serial number 1 AKA the Austin Unit. LAN TYPE: SEEEDS STUDIO W5200 MAC Address: FE:ED:1B:70:08:77
  See images in folder at: https://github.com/PubInv/NASA-COG/tree/develop/docs/OEDCS_June_2023_Version_0.1/Photos This is the Control V1.0 board. Taken out of service at Austin on about ?20240215?
  Control V1.1 SN 09 installed on 20240220. See its MAC below.

• Serial number 2
  
  LAN TYPE: ???? MAC Address: FE:ED:10:69:73:70
  This is the Control V1.0 board. Taken out of service at AmOx on about 20240220
  Control V1.1 SN 12 installed on 20240220. See its MAC below

• Stage II controler
  
  LAN TYPE: ???? MAC Address: FE:ED:14:71:02:77
  ID = 1361064480,1313945940,842021169,959459378

• Serial Number 9
  LAN TYPE: ARDUINO
  MAC Address: FE:ED:1D:70:05:6D Control V1.1 SN 09 installed on OEDCS SN1 about ?20240215?

• Serial Number 10
  LAN TYPE: ARDUINO
  MAC Address: FE:ED:12:71:06:65 Control V1.1 in Austin as of about Feb 2024.

• Serial Number 11 Formerly the Mockup Of Maryville LAN TYPE: SEEEDS STUDIO W5200
  MAC Address: FE:ED:16:6B:72:67

• Serial Number 12 LAN TYPE: ARDUINO
  MAC Address: FE:ED:17:73:0E:69 Located at AmOx as of about 20240220 in OEDCS SN2.

• Serial Number 13
  LAN TYPE: ARDUINO MAC Address: FE:ED:1A:71:09:7F Control V1.1 in Oklahoa City as of about ?January 2024.?

Mechanical Files

• The "frontpanel" folder has FreeCAD drawing which generate the DXF and other files for fabrication of the frontpanel, bottompanel and rear panel.
• The "enclosure" folder has an OpenSCAD drawing of the Unit 1 enclosure. With in the folder is a folder "FreeCADAssy" which has a FreeCAD drawing using the A2plus work bench and duplicates roughly the Unit 1 assembly but which has the Unit 2 frontpanel, bottompanel and rear panel files.

Front Panel and Enclosure Folders Unit 2

Place holder for July-August 2023 Begin Construction of Unit 2.

• Fabrication of Version 2 unit Frontpanel, Bottompanel and Rearpanel not by hand in house. ** DONE!**
• The Frontpanel Version 2 has enlarged AC receiptical opehnings and will require reciptical cover plates. DONE!

Front Panel and Enclosure Folders Unit 1

A March 2023 enclosure for prototyping, proof of concept for the COG controller. This prototype has:

• A programmable power supply (Voltage and current). Power Electrinics, TF800K12A. URL: https://slpower.com/downloads-and-tech-support
• Solid state relays for switching AC power to preheaters. Sparkfun # COM-13015. URL: https://www.sparkfun.com/products/13015
• Power and PWM control for fans to force air into the COG
• Air Temperature: Adafruit MAX31850 amplifier assemblies. Adafruit Product ID: 1727. URL: https://www.adafruit.com/product/1727
• Air flow rate sensors NOT MOUNTED
• An Arduino Due for system control. Navigate into the folders to see more.

Overhead view of Unit 1 wiring as of June - July 2023