Fanuc alarm PS0006: ILLEGAL USE OF MINUS SIGN
PS alarm (program/operation) · Fanuc 0i-D
What it means
A minus sign was placed where it is not permitted, such as on an address or system variable that only accepts unsigned values.
Likely causes
- Minus sign before an address that takes positive-only values
- Negative value written to a read-only or unsigned system variable
Need the part urgently?
Send us alarm PS0006 with your machine details — typical RFQ turnaround is 24–48h.