Mitsubishi Electric M800VW Series Programming Manual page 594

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.2 Manual Speed Command
 Operation example 2 (When the manual speed command is enabled at the third block of the 1st part sys-
tem and the second block of the 2nd part system)
(1) Search a machining program and execute the cycle start of the 1st part system in memory mode.
(2) A while after, execute the cycle start of the 2nd part system.
(3) Command the automatic operation pause during the N103, N202 block execution.
(4) Turn ON the "Manual speed command valid" and "Manual speed command reverse run valid" signals of $1 and $2, as
well as the handle mode of $1 and $2. (Keep the memory mode ON.)
(5) When the 1st handle is rotated in the (+) direction, the axes in the blocks of 1st and 2nd part systems continue to move at
speeds to which the ratio of the automatic operation feed rates is applied to the handle feedrates.
Feedrates of each part system are as below.
(Example) When the handle is rotated with the handle feedrate 10.0 mm/min:
Block N102 of the 1st part system: Command speed is F600, and feedrate is 2.0[mm/min]
Block N202 of the 2nd part system: Command speed is F200, and feedrate is 10.0[mm/min]
(6) In this case, the ratio of the automatic operation feedrates is applied to the handle feedrates.
However, when either of $1 or $2 reaches the block start point, the reversed movements of the both part systems end.
(Cannot return to the previous block.)
(Example) Between the blocks N103 and N202, if the block N103 first reaches the start point, the axis of the block N202
stops even if the block has not been finished.
Machining
N101
program of $1
Machining
program of $2
Manual speed command valid
(PLC→NC)
Handle pulse (+)
(-)
G00 G00
rapid rapid
$1 axis movement
speed
(Program command speed)
$2 axis movement
speed
The movement speed value of f1, f2 is calculated by multiplying the command speed ratio between the two part systems by
the handle speed.
N102
N201 N202
Reverse run
(Handle feed speed →)
G00
rapid
(Program command speed) (Handle feed speed →)
573
N103 N104
N203
Reverse run to the start of the block N103.
As the axis has reached at the start of the
block N103 in reverse run, the reverse run is
stopped even if the handle kept rotated in the
(-) direction.
As N103 has reached the start point first,
the reverse run stops here.
As N103 has reached the start point,
N202 also stops.
f1
f2
IB-1501668-B