61214

Common Causes

• Lead parameter missing or set to zero in helical or pocket cycle block
• Incorrect cycle syntax - lead value not specified in required parameter position
• Lead value cleared or corrupted during program edit or transfer
• Cycle called without completing mandatory parameter input in manual or automatic mode

Troubleshooting Steps

1. 1Verify NC program block syntax for the alarm-triggering cycle (E_CR_HEL, E_PO_CIR, E_PO_REC, F_PO_CIR, or F_PO_REC) and confirm lead parameter is present and non-zero
2. 2Check cycle parameter documentation for the specific cycle type to ensure lead value format and units match system configuration (mm/rev or inch/rev)
3. 3Re-enter the lead value in the program block or MDI, ensuring the parameter assignment syntax is correct for the control version
4. 4Verify machine parameters and cycle definitions are current; reload cycle library if available
5. 5Test with a known working program segment containing the same cycle to isolate whether issue is program-specific or system-wide