M-Series Operator’s Manual 4/9/15 2-2
MPG
The MPG is housed in a separate hand-held unit. Press the MPG key to set the control jog to respond to the MPG hand
wheel, if equipped. When selected, the LED will be on. Select the Jog Increment and desired axis and slowly turn the
wheel. When the LED is not lit, the MPG is disabled and the jog panel is on.
Single Block
The SINGLE BLOCK key selects between auto and single block mode. When the SINGLE BLOCK LED is on, the
single block mode has been enabled. Single Block mode allows you to run a program line by line by pressing CYCLE
START after each block. While in block mode you can select auto mode at any time. While in auto mode and a
program is running you cannot select single block mode. Auto mode runs the loaded program after CYCLE START is
pressed. Auto mode is the default (LED off).
Cycle Start
When the CYCLE START button is pressed, the M-400/M-39 Control will immediately begin processing the current
program at the beginning and will prompt you to press the CYCLE START button again to begin execution of the
program. After an M0, M1, M2, or M6 is encountered in the program, the message “Press CYCLE START to
continue” will be displayed on the screen, and the M-400/M-39 Control will wait until you press the CYCLE START
button before continuing program execution.
WARNING
Pressing CYCLE START will cause the M-Series Control to start moving the
axes immediately without further warning. Be certain that you are ready to start
the program when you press this button. Pressing the FEED HOLD button or
the CYCLE CANCEL button will stop any movement if CYCLE START is
pressed accidentally.
Feedrate Override
This knob controls the percentage of the programmed Feedrate that you can use during feedrate cutting moves: lines,
arcs, canned cycles, etc. This percentage can be from 0% to 200%.
CAUTION
The Feerate Override knob will not work during tapping cycles (G74 and G84).
Feed Hold
Feed Hold decelerates motion of the current movement to a stop, pausing the job that is currently running. Pressing
CYCLE START will continue the movement from the stopped location.
CAUTION
FEED HOLD is temporarily disabled during tapping cycles (G74 and G84) and
automatic tool changes (M6).
Tool Check
Press TOOL CHECK while no program is running to move the Z-axis to its home position/G28 position. Press
TOOL CHECK while a program is running to abort the currently running program. The control will stop normal
program movement, pull Z to its home position, clear all M-functions, and automatically display the Resume Job
Screen. From the Resume Job Screen, you can change tool settings (height offsets, diameter offsets, etc.) and resume
the job with the new tool settings.
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