ID 20392
| Unknown term in mathematical expression. | |||
| Description | The programmed mathematical expression is incomplete or includes unknown or invalid terms and functions. | ||
| Response | Class | 2 | Abort NC program processing. | 
| Solution | Class | 3 | Check and modify NC program. Use correct syntax to program mathematical expression. | 
| Error type | 1, Error message from NC program. | ||
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