FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

OPERATION
B–62764EN/01
4. AUTOMATIC OPERATION
623
Cycle start
(forward movement started)
Feed hold stop
REVERSE
switch turned off
Cycle start
Forward return
movement started
Reverse movement
started
Forward movement
Reverse movement
Forward return
movement
When there are no more blocks for which to perform reverse movement
(when the tool has moved back to the initial forward movement block or
the tool has not yet started forward movement), the reverse movement
completion state is entered and operation stops.
Even when the cycle start switch is pressed with the REVERSE switch
on the operators panel turned on, no operation is performed (the reverse
movement completion state remains unchanged). When the cycle start
switch is pressed after turning off the REVERSE switch on the operator’s
panel, the tool starts forward return movement or forward movement.
Cycle start
(forward movement started)
Reverse movement
completed
REVERSE switch
turned off
Cycle start
Forward return
movement
started
Reverse movement
started
Forward movement
Reverse movement
Forward return movement
When the tool completes a forward return movement up to the block
where reverse movement was started, the tool automatically resumes
forward movement. Programmed commands are read and program
execution is continued. No particular operation is required to resume
forward movement.
When tool movement switches from forward return movement to forward
movement, the display of RTRY (Re–TRY) in the lower–right corner of
the CRT screen disappears.
Cycle start
(forward movement started)
Reverse movement started
Forward movement
started
Forward return movement started
Forward movement
Reverse movement
Forward return movement
If the tool moves in the reverse direction after a feed hold stop, the tool
stops forward return movement at the position of the feed hold stop, then
resumes forward movement. If the tool moves in the reverse direction
after a single block stop, the tool also stops forward return movement at
the position of the single block stop.
D
Reverse movement
Reverse movement
completion Forward
return movement
D Forward return movement
Forward movement

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