CHAPTER 2 MACHINE OPERATIONS
6. Operation Switch Functions and Other Functions
II
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6. Operation Switch Functions and Other Functions
6.1 All axes machine lock
(1) By turning ON the "ALL AXES MACHINE LOCK" switch, NC commands can be executed for
movement by manual and automatic operation without moving the machine.
The current position display of the setting and display unit is incremented.
(2) Either the command speed or the machine lock speed can be selected with the control
parameter (#320004 Machine lock rapid) as the automatic operation speed during machine
lock.
•
Command speed
: Operation is carried out at the feedrate commanded in the program.
Thus, the operation time is the same as the actual machining time.
•
Machine lock speed : Movement commands are processed at the high speed of 60m/min.,
and dwell time, etc., is ignored. Thus, program checks, etc., can be
carried out quickly.
(The machine lock rapid speed can be set in the parameter 120072.)
(3) If the "ALL AXES MACHINE LOCK" switch is changed over during automatic operation, the new
switch setting is validated when the automatic operation stops after the block being executed
finishes.
(4) In reference point returns (G28, G30), the axis is controlled to the middle point in a machine
lock state, but this state is ignored from the middle point to the reference point.
(5) If the "MACHINE LOCK" switch is changed over during manual operation, the new switch
setting is validated after the operation stops once.
(6) M, S, T and B commands are executed as programmed.
(Note 1)
Each coordinate value updated by the machine lock is preset to a value created based on
the machine value by resetting (including M02 and M30).
6.2 Display lock
(1) By turning ON the "DISPLAY LOCK" switch, the machine will move for the movement by
automatic and manual operation, but the current position display of the setting and display unit
will not be incremented.
The program coordinate system is updated.
(2) If the "DISPLAY LOCK" switch is changed over during automatic operation, the new switch
setting is validated when the automatic operation stops after the block being executed finishes.
(3) Use this switch when shifting the program zero point with the manual interrupt, without changing
the value on the display.
6.3 Cancel Z lock
(1) By turning ON the "CANCEL Z LOCK" switch, NC commands can be executed for the
movement by automatic operation, without moving the machine in the Z axis only.
The Z axis does not move, but the current position display of the setting display unit is
incremented.
(2) The Z axis moves by manual operation even when the CANCEL Z LOCK switch is turned ON.
(3) If the "CANCEL Z LOCK" switch is changed over during automatic operation, the new switch
setting is validated when the automatic operation stops after the block being executed finishes.
(4) In reference point returns (G28, G30), the axis is controlled to the middle point in a canceled Z
axis state, but this state is ignored after the middle point.
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