Alarm: 120 LOW AIR PRESSURE
Haas Alarm Description:
Air pressure dropped below 80 psi for period defined by Parameter 76. The Low Air PR alarm appears on the screen as soon as the pressure gets low, and this alarm appears after some time has elapsed. Check your incoming air pressure for at least 100 psi and ensure that the regulator is set at 85 psi. Test the I/O by jumpering pins 1 to 3 on P12 and watch diagnostics bit Low Air Press. Under certain conditions, SMTC Recovery must be performed to clear the alarm.
References
- Haas Alarms PDF by Haas Automation, Inc.