
B-63783EN-1/01 1.AXIS CONTROL
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1.15 DECELERATION STOP AT POWER FAILURE
Overview
If a power failure occurs during axis movement, this function
decelerates and stops the tool according to a certain acceleration value
set for each axis in parameter No. 1670 to prevent the machine from
being damaged by an overrun.
Description
- Deceleration method
In either cutting or rapid traverse, linear deceleration is performed at a
constant acceleration.
- Example of deceleration
When the feedrate along the X-axis differs from that along the Y-axis
Power failure detected
Decelerated at acceleration
set in parameter No. 1670
Power failure
deceleration signal
PWFL
Feedrate along X-axis
Feedrate along Y-axis
NOTE
1 Once deceleration has been completed after the
power failure deceleration signal is set to 1, any
movement along an axis is disabled.
2 To perform axis movement, turn the power off then
back on.
3 The torque control axis in PMC axis control, feedrate
control axis, Cs contour control axis, spindle
positioning axis, and EGB axis are not subjected to
deceleration by this function.
4 Some measures are required on the PMC ladder and
machine sides to prevent emergency stop from
occurring before deceleration is completed.