When first Rs_re calibration failed, how can I trigger second Rs calibration automatically?

Which lab did you refer? You can follow below steps if you are using lab11a as a reference project.
1. Set gMotorVars.Flag_Run_Identify= 0 to stop the motor.
2. Set gMotorVars.Flag_enableRsRecalc = true, and call EST_setFlag_enableRsRecalc(estHandle,false);
3. Set gMotorVars.Flag_Run_Identify = 1 to start the motor again when the motor is stopping.

What are the conditions that I can use to check whether the Rs-calibration fail or not?
I used gMotorVars.SpinTAC.PosCtlErrorID == 2002, but sometimes it doesn't work
Because It doesn't always generate this ErrorID when the calibration failed.