
B-63944EN/02 OPERATION 4.AUTOMATIC OPERATION
- 959 -
- Feed hold
If a feed hold operation is performed during the search, the restart
steps must be performed again from the beginning.
- Manual absolute
Every manual operation must be performed with the manual absolute
mode turned on regardless of whether the manual operation is
performed before or after machining.
- Reference position return
Unless an absolute position detector (absolute pulse coder) is provided,
be sure to perform reference position return after power-up, then
perform restart operation.
- Program restart switch
When the program restart switch is on, pressing the cycle start switch
does not start operation.
- Blocks specifying a macro statement, macro call, and subprogram call
Blocks specifying a macro statement, macro call, and subprogram call
are not searched for even when they have a sequence number. In
such a case, search for a block previously preceding such a block.
- Interruption type custom macro
During movement to the machining restart point at a dry run feedrate,
no interruption type custom macro can be started. If an interruption
type custom macro is started, alarm DS024 is issued.
- Commands that prevent program restart
Program restart cannot be performed for blocks placed in the
following modes:
• Cs contouring control
• Polygon turning (G50.2)
• Threading (G32,G33), Circular threading (G35,G36),
Threadingcycle (G92), Multiple repetitive threading cycle (G76)
• Polar coordinate interpolation (G12.1)
• Balance cutting (G68)
• Rigid tapping
If any of the following commands is included between the beginning
of a program and the block where the program is to restart, program
restart cannot be performed:
• Hypothetical axis interpolation
• Workpiece coordinate system preset (G92.1,G50.3)
• Commands for enabling and disabling synchronous/mixture
control and superimposed control
• Commands for enabling and disabling axis synchronous control