8. AUXILIARY AND APPLIED FUNCTIONS
8 − 17
8.10 Servo Program Cancel/
//
/Start Function
This is a function for stopping a servo program being executed by means of a
deceleration stop caused turning the cancel signal ON. When used in combination
with "start" (selectable item), this function also allows a designated servo program
to be automatically started after a deceleration start.
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[Control details]
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(1) When the cancel signal is turned ON during execution of a program for which
the cancel function has been designated, the positioning processing being
executed is suspended, and a deceleration stop is executed.
(2) If "start" has been designated in conjunction with "cancel", after the stop has
been executed as described above, the designated servo program is started.
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[Data setting]
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(1) Cancel signal device
The devices that can be used as cancel signal devices are indicated below.
X, Y, M, TC, TT, CC, CT, B, F
(2) Start (selectable item) setting method
Set by indirect designation (1 word) by using a constant (K) or D, W devices.
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[Notes]
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(1) Cannot be used with the zeroing instruction (ZERO) or simultaneous start
instruction (START).
For details on whether other instructions can be used or not, refer to the servo
instruction list (6.2(2)).
(2) If the axes used with a servo program designated by "start" are already in
operation and the program cannot be executed, the axes decelerate to a stop
and minor error "101" occurs.
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[Operation timing]
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PLC ready(M2000)
OFF
OFF
OFF
ON
ON
All axes servo start instruction (M2042)
Cancel signal
V
A
Start of
positioning
to point A
Execution of servo program k0
Deceleration to stop when cancel signal turned ON
Positioning start due to
"
start
"
designation
Execution of servo program k2
ON
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