LED States
Hardware version
CANBench Duo v1.2 — Schematic-stage refresh of the V1.1 fabricated prototype. V1.2 is electrically identical to V1.1 and carries the InvenTree-canonical component metadata; no V1.2 boards exist yet — testing and bring-up reference the V1.1 hardware.
Other versions: v1.1 — fabricated prototype (current)
Four-state lookup table for the CANBench Duo indicator LED (D1, top extrusion).
| State | Meaning |
|---|---|
| Off | No bench-supply voltage |
| Green | Correct polarity, normal operation |
| Blue | Q2 protection FET not fully conducting — typically F1 has blown |
| Red | Reverse polarity at SRC pair (V_BLACK > V_RED) |
A brief Blue flash for a few ms at supply turn-on is benign (Q2 settling) and resolves to Green.
For operator-level troubleshooting flow and what to do in each state, see User Manual → Status LED. For circuit topology and the engineering rationale of the four-state encoding, see Power Indicator LED.