SEW Eurodrive · MOVIDRIVE compact System (MCF/MCV/MCS4_A)
Immediate switch-off because the speed controller or current controller is operating at its setting limit. This can be due to mechanical overload, a phase failure in the power supply or motor, an incorrectly connected encoder, or exceeding the maximum speed (nmax) during torque control.
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Reduce the mechanical load on the motor.
Increase the deceleration time setting (P501 or P503) to allow for longer deceleration.
Check the encoder connection; if necessary, swap A/A and B/B signal pairs to correct direction.
Verify the encoder voltage supply is stable and within specifications.
Check the current limitation settings (e.g., P303 for maximum current).
Extend acceleration/deceleration ramps if current limits are being hit.