D20x22 Series II Navigator HDD Overview 30-55
When Limits are Exceeded
If these values exceed their limits, a message will be displayed:
• In Thrust Pressure mode: ROTPSI
•In Rotation Pressure mode: THRPSI
•In Speed mode: THRPSI or ROTPSI, whichever pressure limit has been exceeded
The messages mean the thrust pump output is reduced until drilling conditions come back within limits:
• Flashing message: 10% reduction
• Solid message: 30% reduction
Adjusting to Higher Limits
Refer to “AutoDrill - Adjust,” page 30-60.