This video explains the zero-point setting procedure for KND drives and the steps to resolve Alarm 41 on the SD300 model. The core workflow is as follows:

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Entering Parameter Settings Mode

Exit the current screen → Locate the PA parameters → Find the TU parameter group.

Triggering Zero-Point Setting

Press and release the TU4 key → Press the Exit key to confirm → Locate and confirm the TU9 parameter.

Resolving Alarm 41

This alarm is typically associated with encoder zero-point offset; recalibrate the zero-point position using the steps above.

Important Notes

Record the original parameters before proceeding to prevent equipment malfunctions caused by accidental changes.
Verify the drive model (e.g., SD300 series) and system version specifications.
If the alarm persists, check the encoder wiring sequence or the mechanical zero-point position.