Automatic Operation Hold (Feed Hold) - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

Cautions
• When a sequence No., or block No. are specified for program startup, time is needed to search for the startup block thus it
may take time for the block to actually start.
• When the same sequence No. is specified multiple times in one program, the program is started from the position of the
sequence No. found first from the start of the program.
• When the G-code program of the specified program No. does not exist, a minor error (error code: 1FC3H (details code:
031FH)) occurs.
• When the corresponding sequence No. is not in the G-code program, a minor error (error code: 1FC3H (details code:
0320H)) occurs.
• When the corresponding block No. is not in the G-code program, a minor error (error code: 1FC3H (details code: 0321H))
occurs.
• When the specified block is cued and G-program started in the middle of a G-code program such as a program performing
polar coordinate interpolation, program coordinate rotation mode, normal line control, etc., an unintended operation can
occur therefore do not specify a block in the middle of a G-code program.
• When sequence No., block No. is specified for the startup of a G-code program that specifies the search sequence No.
multiple times, the search for startup block is performed from the first sequence No. found from the program start, until the
next different sequence No. is specified. If the corresponding block No. is not found before the next different sequence No.,
a minor error (error code: 1FC3H (details code: 0321H)) occurs.

Automatic operation hold (feed hold)

During automatic operation, an axis can be decelerated to a stop in the middle of operation by turning ON "[Rq.3378]
Automatic operation hold (feed hold) (D54226.2+2s)". Restart the axis with "[Rq.3777] Automatic operation start (cycle start)
(D54226.1+2s)".
[Rq.3377] Automatic operation start
(Cycle start) (D54226.1+2s)
[Rq.3378] Automatic operation hold
(Feed hold) (D54226.2+2s)
Axis movement state
For feed hold during automatic operation, the feed decelerates to a stop immediately but the M commands in
the same block continue as they are.
6 AUXILIARY AND APPLIED FUNCTIONS
208
6.5 Operation Supporting Functions
ON
OFF
ON
OFF