Fanuc alarm PS0030: ILLEGAL OFFSET NUMBER
PS alarm (program/operation) · Fanuc 0i-D
What it means
An offset number outside the range available on this machine was commanded, e.g. an H or D number larger than the maximum offset count. Check the H/D word against the number of offsets configured in parameters.
Likely causes
- H or D code exceeding the maximum offset number setting
- Tool table size reduced while old programs still call high numbers
- Typo in the offset number
Triage note: Some SEO blogs list PS0030 as 'Too many commas'; official Fanuc tables give ILLEGAL OFFSET NUMBER.
Need the part urgently?
Send us alarm PS0030 with your machine details — typical RFQ turnaround is 24–48h.