Operation Panel Switch Functions; All Axes Machine Lock; Chamfering (L System); Miscellaneous Function Lock - Mitsubishi Electric MELDAS C6 Instruction Manual

6. Operation Panel Switch Functions

6.1 All Axes Machine Lock

(1) When the "ALL AXES MACHINE LOCK" switch is turned ON, the NC commands for the manual
operation or automatic operation movement can be executed without moving the machine.
The current position display on the setting and display unit will be counted.
(2) The automatic operation speed during machine lock can be selected as the commanded speed
or machine lock speed using the parameters.
• Commanded speed − The movement is executed at the feedrate commanded in the program.
• Machine lock speed − The movement commands are processed at the rapid traverse rate, and
(3) If the "ALL AXES MACHINE LOCK" switch is changed during automatic operation, the automatic
operation will stop after the block currently being executed is completed, and then the setting will
be validated.
(4) During reference point return (G28, G30), the movement will be controlled with the machine lock
status up to the middle point. The machine lock status will be ignored from the middle point to
the reference point.
(5) If the "MACHINE LOCK" switch is changed during manual operation, the setting will be validated
after the feed is stopped once.
(6) The M, S, T and B commands are executed according to the program.
(7) After the axis is moved in the "MACHINE LOCK" ON state, the current position display when the
"MACHINE LOCK" is turned OFF and the machine position will not match.
If AUTO START is pressed in this state, the difference between the current position and the
machine position will be added to the movement amount.
If RESET is pressed, the current position display will change to match the machine position.
Thus, after turning "MACHINE LOCK" OFF, press RESET before starting operation.
(Note) Each coordinate value updated with the machine lock will be preset to the value created by

6.2 Chamfering (L system)

Chamfering can be validated/invalidated in the thread cutting cycle using an external switch.

6.3 Miscellaneous Function Lock

(1) M, S, T, or B function execution can be ignored by turning on the MISCELLANEOUS
(2) M, S, T, B function BCD output is made, but the start signal is not output.
(3) If the MISCELLANEOUS FUNCTION LOCK switch is changed during command execution,

6.4 Single Block

(1) When the SINGLE BLOCK switch is turned on, automatic operation stops after the block being
(2) The single block stop point in the fixed cycle mode is fixed according to the fixed cycle.
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6. Operation Panel Switch Functions
Thus, the time is the same as actual machining.
the dwell time, etc., is ignored. Thus, the program check, etc., can be
carried out faster.
reset (including M02 and M30) based on the machine value.
FUNCTION LOCK switch.
automatic operation stops after the block being executed is terminated. Then, it becomes
effective.
executed is terminated. That is, automatic operation stops after one program block is executed.
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6.1 All Axes Machine Lock
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