1 START AND STOP
1.1 Start
21
1
Start by the positioning start signal [Y10 to Y1F]
The operation at starting by the positioning start signal [Y10 to Y1F] is shown below.
• When the positioning start signal [Y10 to Y1F] turns ON, the start complete signal ([Md.31] Status: b14) and BUSY signal
[X10 to X1F] turn ON, and the positioning operation starts. It can be seen that the axis is operating when the BUSY signal
[X10 to X1F] is ON.
• When the positioning start signal [Y10 to Y1F] turns OFF, the start complete signal ([Md.31] Status: b14) also turns OFF. If
the positioning start signal [Y10 to Y1F] is ON even after positioning is completed, the start complete signal ([Md.31] Status:
b14) will remain ON.
• If the positioning start signal turns ON again while the BUSY signal [X10 to X1F] is ON, the warning "Start during operation"
(warning code: 0900H)" will occur.
• The process executed when the positioning operation is completed will differ by whether the next positioning control is
executed.
■RD77MS4 operation example
The BUSY signal [X10 to X1F] turns ON even when position control of movement amount 0 is executed.
However, since the ON time is short, the ON status may not be detected in the program. (The ON status of the
start complete signal ([Md.31] Status: b14), positioning complete signal ([Md.31] Status: b15) and M code ON
signal ([Md.31] Status: b12) can be detected in the program.)
Whether the next positioning control is
executed
Processing details
Do not execute the positioning • If a dwell time is set, the system will wait for the set time to pass, and then positioning will be completed.
• When positioning is completed, the BUSY signal [X10 to X1F] will turn OFF and the positioning complete
signal ([Md.31] Status: b15) will turn ON. However, when using speed control or when the positioning
complete signal ON time is "0", the signal will not turn ON.
• When the time set in "[Pr.40] Positioning complete signal output time" is passed, the positioning complete
signal ([Md.31] Status: b15) will turn OFF.
Execute the positioning • If a dwell time is set, the system will wait for the set time to pass.
• When the set dwell time is passed, the next positioning will start.
Positioning start signal
[Y10, Y11, Y12, Y13]
OFF
ON
Start complete signal
([Md.31] Status: b14)
OFF
ON
BUSY signal
[X10, X11, X12, X13]
OFF
ON
OFF
ON
Positioning
V
t
Dwell time
All axis servo ON [Y1]
OFF
ON
Positioning complete signal
([Md.31] Status: b15)
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