1299

Common Causes

• Program commands W-axis or ZB-axis (or ZA-axis) into the interference zone between sub-spindle and turret
• Interference distance parameter set too large for the actual machine layout
• Steady rest or tailstock position command exceeding the max/min distance limits (codes 2-5)
• Turret moved into the R-spindle interference distance (code 6)

Troubleshooting Steps

1. 1Read the code number shown with the alarm: code 1 = Move violated the sub-spindle interference distance; code 2 = Sub-spindle move exceeded the maximum steady rest-to-tailstock distance; code 3 = Sub-spindle move exceeded the minimum steady rest-to-tailstock distance; code 4 = Steady rest move exceeded the maximum steady rest-to-tailstock distance; code 5 = Steady rest move exceeded the minimum steady rest-to-tailstock distance; code 6 = Axis moved into the interference distance between turret and R-spindle
2. 2Read the code on the alarm screen to identify which axis pair tripped: code 1 = sub-spindle/turret interference, codes 2-5 = steady rest vs tailstock distance, code 6 = turret vs R-spindle.
3. 3For code 1 or 6, jog the W-axis (or ZB/ZA-axis) away from the opposing headstock/turret in manual mode to clear the interference zone, then reset the alarm.
4. 4Review the block that commanded the move and correct the W/ZB (or ZA) position so the two units stay outside the interference distance.
5. 5For codes 2-5, check the steady rest and tailstock position commands against the maximum/minimum distance settings and correct the offending value in the program.
6. 6If the program looks correct, verify the interference distance parameter value matches the actual machine geometry; an oversized value will trip on legitimate moves.
7. 7If the alarm recurs with verified-correct positions and parameters, record the alarm number, code and object and contact Okuma service.