Troubleshooting

Common issues that may be encountered and where to seek further information.

Check the correct communications setting is applied for the required protocol. Depending on the CAN Bus-enabled parameter, the units will accept either CAN Bus or DShot/PWM.

If DShot/PWM (serial) is required, confirm the right option (or automatic) is selected in the Signal Type parameter. The serial input and output are isolated and require external power on the Vcc pin. Confirm this pin is receiving power.

Relevant parameters:

The unit cannot return power to the bus, if the commanded event is a throttle down that causes the skipping. This typically indicates a power supply cannot handle reverse power, and regenerative power should be disabled. See AFW parameter.

During high-power acceleration, skipping typically indicates the unit has reached the bus current or phase current limit and is reducing output drive to remain within limits. This is visible within the data logs. Increasing the limit (within unit hardware limits) can be performed.

Relevant parameters:

A fault was detected on start-up, connect to the configuration tool to see further details about what error was detected. The error will need to be resolved before normal operation can continue. The errors are also reported to the DroneCAN debug message system.

Relevant section:

An unrecoverable error was detected, either in the unit's hardware or firmware. The unit should be returned.

Relevant section:

Advanced settings specifically are hidden by default on CAN to reduce bandwidth requirements for slower datalinks. Enabling the advanced settings option within the configuration tool or setting the ADV_SETTINGS parameter over CAN will permanently display the settings on that unit.