NIMS CNC Operator Test Study Guide

+X - A jog key that moves the spindle along the X-axis in the positive direction. minus (-)X - A jog key that moves the spindle along the X-axis in the negative direction. +Y - A jog key that moves the spindle along the Y-axis in the positive direction. minus (-)Y - A jog key that moves the spindle along the Y-axis in the negative direction. +Z - A jog key that moves the spindle along the Z-axis in the positive direction. minus (-)Z - A jog key that moves the spindle along the Z-axis in the negative direction. +A - A jog key that rotates machine components around the A-axis in a positive direction. Not all Haas mills are equipped with a fourth A-axis. minus (-)A - A jog key that rotates machine components around the A-axis in a negative direction. Not all Haas mills are equipped with a fourth A-axis. +B - A jog key that rotates machine components around the B-axis in a positive direction. Not all Haas mills are equipped with a fifth B-axis. minus (-)B - A jog key that rotates machine components around the B-axis in a negative direction. Not all Haas mills are equipped with a fifth B-axis. +10 FEEDRATE - An override key on the Haas control that increases the current feed rate in 10% increments. minus (-)10 FEEDRATE - An override key on the Haas control that decreases the current feed rate in 10% increments. 100% FEEDRATE - An override key on the Haas control that sets the feed rate back to 100% of the programmed value. +10 SPINDLE - An override key on the Haas control that increases the current spindle speed in 10% increments. minus (-)10 SPINDLE - An override key on the Haas control that decreases the current spindle speed in 10% increments. 100% SPINDLE - An override key on the Haas control that sets the spindle back to 100% of the programmed value. 5% RAPID - An override key on the Haas control that limits rapid traverse to 5% of maximum. 25% RAPID - An override key on the Haas control that limits rapid traverse to 25% of maximum. 50% RAPID - An override key on the Haas control that limits rapid traverse to 50% of maximum. 100% RAPID - An override key on the Haas control that allows the machine spindle to move at its maximum rate of travel. Alarm 176 - An alarm code on the Haas control that indicates the machine is experiencing an overvoltage condition. Alarm 176 initiates auto-shutdown after 4.5 minutes.