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Check parameter 1320 (stored stroke limit setting) bits to verify stored stroke limit is enabled for the affected axes.

Verify parameters 1321-1324 (stored stroke limit +) and 1325-1328 (stored stroke limit -) contain valid numerical values, not zeros or corrupted data.

Perform a reference return (homing) cycle for all axes to re-establish the machine coordinate system reference point.

Ensure machine area is clear and all axes can safely reach home position

If alarm persists after homing, set stored stroke limit reference position by executing G22 command after confirming parameters are correct.

Check battery voltage at the control amplifier or PSU (should be above 3.0V for lithium batteries). Replace battery if voltage is low.

Parameter data may be lost when battery is replaced - have backup ready

Compare parameters 1321-1328 against machine specifications to ensure positive limits are greater than negative limits for each axis and values are within physical machine range.

If parameters are corrupted, restore from known good backup or re-enter correct values per machine manufacturer documentation.

Write-enable parameters by setting parameter write enable switch or parameter PWE setting

After parameter correction, cycle power to the control and perform reference return on all axes before attempting operation.

Review the active program for G22 or G23 commands and verify they are used correctly and in proper sequence.

Verify parameter 1320 bits are set correctly to enable stored stroke limit check - bit 0 (X-axis), bit 1 (Y-axis), bit 2 (Z-axis), etc.

Test by disabling stored stroke limit in parameters (set parameter 1320 to 0) to verify machine operation without stored limits, isolating the issue.

Machine will operate without stored stroke limit protection - use caution and manual feed

If machine operates normally with stored limits disabled, re-establish reference positions and stroke limit parameters from scratch per machine setup documentation.