Your Voltara ESC has a status LED that tells you exactly what is happening at a glance:
Normal Operation #
| What You See | What It Means |
|---|---|
| Solid ON at power-up | Power is good. Firmware booted. Waiting for signal from your flight controller. |
| Off after a few seconds | Signal not yet detected. Check your FC power, wiring, and protocol settings. |
| 1 short flash, then solid | Normal DSHOT detected. Ready to arm. |
| 2 short flashes, then solid | Bidirectional DSHOT detected. RPM telemetry is active & ready to arm. |
| 3 short flashes, then solid | Analog PWM detected. Ready to arm. |
| Quick off blink | Settings saved to flash. |
Error Patterns #
When something is wrong, the LED plays a repeating error code. The format is always the same:
3 fast blinks → short pause → N slow blinks → long pause → repeat.
Count the slow blinks — that is the error number.
| Slow Blinks | Meaning | What To Do |
|---|---|---|
| 1 | Input Signal lost | Check wiring and FC protocol settings. Clears automatically when the signal returns. |
| 2 | Motor stuck, failed to start, or winding check failed at start-up. | Check for a jammed prop, seized bearing, or a shorted motor wire. Drop throttle to zero to re-arm after clearing. |
| 3 | Gate driver fault. If detected means a Driver or Power-Stage fault occurred. | Inspect the ESC PCB for any damaged components. |
| 4 | Damaged FET’s detected | Inspect PCB for shorts or shorted MOSFETs and repair before trying again. |
| 7 | Low Voltage limit engaged if <6v | Nothing. Voltage dropped below the 6V threshold. |
If multiple errors are active, the LED cycles through each one in order.
