x086
Motor Thermal Sensor Error
Lenze · SM29_05 Service Bulletin
What does x086 mean?
A thermal sensor error has occurred at the motor (displayed as Sd6), specifically at terminals X7 or X8. This indicates a problem with the motor's temperature sensing circuit, such as a broken sensor or incorrect wiring. This condition is monitored by the MCTRL function and related to parameter C0594.
Source: Lenze SM29_05 Service Bulletin
Open Manual (Page 240)