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Distance error detection t071. The distance error detection is the integral of the difference between the ramp speed Pr 19.03 and the actual speed in F49, Pr 19.02 and is active for closed loop operation. The calculated distance error is compared to the user defined distance error threshold in Pr 19.18. If the actual distance error exceeds the user defined distance error a t071 trip is generated. The distance error during one travel is displayed in Pr 18.06 independent of the activation of the distance error detection being enabled. The distance error is reset to zero at the start of each travel.Possible causes for the Speed error t070 and Distance error t071 detection trips can be due to the following:Errors with motor connections: 1. Phase rotation; Encoder feedback fault: 2. Phases rotated, 3. Induced noise,4. Encoder feedback failure;Drive set-up errors: 5. Encoder feedback parameter set-up,6. Motor map parameter set-up,7. Phase offset, PM motors rotating auto tune required,8. Gains settings resulting in instability.