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PowerSTEP01 - is the ResetDevice command conditional?

CTapp.1
Associate III

I have a PowerSTEP01 that is behaving unexpectedly when I send the ResetDevice command.

If I send it when my system starts then everything is ok when I check the STATUS register.

However, if I send ResetDevice after the motor has been moved (sequence ends with a SoftStop), then the status reports CMD_ERROR. Adding a status check shows that the error was definitely caused by the ResetDevice command - status before is 0xE012 and after is 0xE092.

This does not happen if I issue a HardHiZ before the ResetDevice.

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