Very High Speed EM
â–¶ How to fix
Investigate why the EM is achieving high speeds.
What you'll see
No propulsion from MGS available. May cause fault codes in other systems connected on the DC-link
System reaction
Disable inverter. Yellow OBD
Diagnostic depth
Detection
Evaluation Condition When a valid speed signal is available. Set Condition Uses first order low-pass filtered speed (same as ActualSpeed). Speed is above OverSpeedLimitForward or OverSpeedLimitReverse. Clear Condition Uses first order low-pass filtered speed (same as ActualSpeed). Speed is below OverSpeedLimitForward and OverSpeedLimitReverse.
Possible cause
Current or torque control is used without accelerating current high speed reduction Speed limits are set too low for the application Shaft speed is increased externally