
26. SAFETY FUNCTIONS
B–63172EN/01
NC FUNCTION
166
Axis feed specified to each axis can be stopped separately. If interlock is
specified to any of the moving axis during cutting feed, all axes of the
machine movement will decelerate to a stop. When interlock signal is
reset, the moving starts.
Feed of all axes can be inhibited. When all axes interlock is commanded
during move, it decelerates and stops. When all axes interlock signal is
reset, the moving restarts.
Feeding of a specific axis in a specific direction can be inhibited
independently of other axes. If the interlock signal is input to any of the
axes during a cutting feed operation, all axes decelerate and come to a
stop. When the interlock signal for each axis direction is released, the axes
start moving again.
When a cutting tool collides with the machine body or is damaged during
cutting, the load torque applied to the servo motors is larger than during
normal feeding or cutting. The abnormal load detection function
calculates the load torque and transfers the value from the CNC to the
PMC. If the load torque is larger than the value set in a parameter, the
function stop the motor or reverses the motor rotation to retract the tool
by the distance set in a parameter. In this way, damage to the machine is
prevented.
26.3
INTERLOCK
26.3.1
Interlock per Axis
26.3.2
All Axes Interlock
26.3.3
Interlock for Each Axis
Direction
26.4
ABNORMAL LOAD
DETECTION