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Introduction
96-8000 rev R June 2007
OVERRIDE K EYS
These keys give the user the ability to override the speed of non-cutting (rapid) axes motion, programmed feeds
and spindle speeds.
-10 - Decreases current feedrate by 10%.
100% - Sets overridden feedrate to programmed feedrate.
+10 - Increases current feedrate by 10%.
-10 - Decreases current spindle speed by 10%.
100% - Sets overridden spindle speed to programmed speed.
+10 - Increases current spindle speed by 10%.
Hand Cntrl Feed (Handle Control Feedrate) - Pressing this button allows the jog handle to be used to control
the feedrate in ±1% increments.
Hand Cntrl Spin (Handle Control Spindle) - Pressing this button allows the jog handle to be used to control
spindle speed in ±1% increments.
CW - Starts the spindle in the clockwise direction. This button is disabled on CE (export) machines.
CCW - Starts the spindle in the counterclockwise direction. This button is disabled on CE (export) machines.
The spindle can be started or stopped with the CW or CCW buttons any time the machine is at a Single Block
stop or the Feed Hold button has been pressed. When the program is restarted with Cycle Start, the spindle
will be turned back on to the previously defined speed.
STOP - Stops the spindle.
5% / 25% / 50% / 100% Rapid - Limits machine rapids to the value on the key. The 100% Rapid button allows
maximum rapid.
Override Usage
The feedrate can be varied from 0% to 999% of the programmed value while in operation. This is done with the
feedrate +10%, -10% and 100% buttons. The feedrate override is ineffective during G74 and G84 tapping
cycles. Feedrate override does not change the speed of any auxiliary axes. During manual jogging, the feedrate
override will adjust the rates selected from the keypad. This allows for fine control of the jog speed.
The spindle speed can also be varied, from 0% to 999%, using the spindle overrides. It is also ineffective for
G74 and G84. In the Single Block mode, the spindle may be stopped. It will automatically start up upon
continuing the program (pressing Cycle Start).
By pressing the Handle Control Feedrate key, the jog handle can be used to control feedrate from 0% to 999%
in ±1% increments. By pressing the Handle Control Spindle key, the jog handle can be used to control spindle
speed in ±1% increments (from 0% to 999%).
Rapid moves (G00) may be limited to 5%, 25%, or 50% of maximum using the keypad. If the 100% rapid is too
fast, it may be set to 50% of maximum by Setting 10.
In the Settings page, it is possible to disable the override keys so that the operator cannot select them. These
are Settings 19, 20 and 21.
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