Wireless Intuitive Probe System (WIPS) alarms are among the most searched Haas issues because they stop automated setup, probing, and lights-out machining. Haas documents specific WIPS alarms such as 1011 “OMP40 Not Calibrated” and 1106/1107 “OMP40 Needs Calibration,” typically indicating that the probe’s tool offset does not match expected macro-variable values and the probe requires calibration. oai_citation:9‡haascnc.com
What These WIPS Alarms Usually Mean
- The spindle probe is not calibrated (or calibration data no longer matches the expected reference values).
- Probing macros rely on calibration constants; when they drift, the control triggers alarms to prevent bad offsets.
Most Common Real Causes
1) Probe stylus changed or loosened
2) Probe crashed lightly (no visible damage, but calibration shifted)
3) Probe/receiver battery weak or IR signal inconsistent
4) Dirty stylus or contaminated probing surface
5) Wrong probing macro parameters used for your machine configuration
Fast Fix Workflow (Best Practice)
1) Inspect stylus physically:
- Tightness, straightness, cleanliness
2) Verify batteries and signal path (receiver line-of-sight, no obstructions).
3) Run the Haas-provided calibration procedure for the spindle probe (as documented in Haas WIPS troubleshooting). oai_citation:10‡haascnc.com
4) Re-run a simple probe cycle on a known reference (ring gauge / calibration sphere / known block) to confirm repeatability.
Prevention (How Pros Keep WIPS Stable)
- Calibrate on a schedule (especially after stylus replacement).
- Avoid probing at aggressive feedrates.
- Keep probing surfaces clean and dry.
- Add a “probe verify” step at the start of high-value unattended jobs.
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