01 / Power the DUT12 V source → control-panel PS1 → buck VIN/GND. Confirm rail and return wiring.
02 / Apply the loadBuck J4 VOUT → load +. Buck J5 GND → load −. Keep force leads short and paired.
03 / Control & readWorkcell CM5 → USBTMC or LAN SCPI. The load has its own mains supply.
04 / CorrelateControl-panel telemetry: disconnected. Scope required for ripple and transient response.