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3. SPECIFICATIONS
MELSEC-A
(3) Speed control mode
The operation is started by a one-time start signal and processing
continues until a stop signal comes in.
Positionino data
Address 0
y
l
Direction
Speed
0 (forward direction)
v1
Speedchange
No.50
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Positioning
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commenced (X18)
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!
X axis start (Y20)
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Stop signal (Y25)
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BUSY(X14)
Note The stop signal from the PC CPU, external STOP signal, and input of the
BREAK key from an AD71TU and peripheral device are judged to be stop
signals. Section 6.3.10 gives details.
Fig. 3.26 Speed Control Mode Setting
Example
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Processing continues until a stop signal is received. If the stop factors
The current value is set to 0 when starting and does not change during
The positioning complete signal M code ON signal does not go ON.
The speed can be changed.
If
a stop command is received during traveling within backlash,
OS
controls
it
so that processing stops after traveling the backlash
amount backlash.
in Section 6.3.10 do not occur, an automatic stop will not occur.
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operations.
3-43
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