| ACH550 |
The ABB variable-frequency drive that runs the tunnel motor. |
| ADCL |
Aeronautics, Dynamics and Controls Laboratory, the UCI lab that owns this facility. |
| ADCL WinSoft |
The Python + PySide6 control application in code/adcl_winsoft/. The long-term AeroWare replacement. |
| AeroWare |
The legacy LabVIEW control application from AeroLab Inc. Being retired; VFD path broken, DAQ path still works. |
| CW |
Control Word. The drive's Modbus quick-access register for start/stop/E-Stop commands. Address 0. |
| cDAQ |
National Instruments compactDAQ chassis hosting the input modules for pressure, voltage, and bridge signals. |
| EH&S |
UCI Environment, Health & Safety. Phone 949-824-6200. |
| EXT1 / EXT2 |
The drive's two command sources. EXT1 is what we use; the source choice is in parameter 11.02. |
| Fieldbus |
The Ethernet-to-drive-internal-bus bridge. Implemented by the RETA-01 module. |
| LOC / REM |
Local (keypad) vs Remote (fieldbus) command mode on the drive. Press LOC/REM on the keypad to switch. |
| Modbus/TCP |
The protocol the control software uses to talk to the drive via the RETA-01. |
| PGB sting |
A pressure-gauge-bridge force-balance sting mount used to measure forces and moments on a test article. |
| REF1 |
The drive's Modbus quick-access register for the speed reference. Address 1. Scaled REF1 = drive_RPM × 22.42. |
| RETA-01 |
The ABB Ethernet fieldbus adapter installed in option slot 1 of the ACH550. |
| REM mode |
The drive accepts commands from the fieldbus. Required for software control. |
| SOP |
Standard Operating Procedure. Operator-facing document at docs/sop/. |
| SW |
Status Word. The drive's Modbus quick-access register reporting state. Address 3, read-only. |
| UCI |
University of California, Irvine. |
| VFD |
Variable-Frequency Drive. The motor controller. We use the ABB ACH550. |
| WSL2 |
Windows Subsystem for Linux v2. The lab PC's shell environment for git and editor work. |
WindTunnelControl.ps1 |
The short-term PowerShell + Windows Forms VFD control GUI in code/wind_tunnel_control/. |