7 Before Starting Positioning Operation
131
FX
3U
-20SSC-H Positioning Block User's Manual
1
Int
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Sy
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conf
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Exam
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C
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Ins
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Wi
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Me
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Befor
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star
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M
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Posit
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C
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Table O
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7.11 Cautions for Positioning Operation
7.11.3
Setting of interpolation operation, pulse rate and feed rate
1. Linear Interpolation Operation (including the Interrupt Stop)
When setting a different pulse rate/feed rate (X-axis) and pulse rate/feed rate (Y-axis) during interpolation
operation
• If the 20SSC-H version is earlier than Ver.1.20
Set ratios that are the same for the pulse rate to the feed rate for the X-axis and the Y-axis.
When the ratios are different, the actual speed does not match the set speed.
• If the 20SSC-H version is Ver.1.20 or later
Set the interpolation gear ratio selection function in the X- axis, Y-axis.
2. Circular Interpolation Operation
When setting a different pulse rate/feed rate (X-axis) and pulse rate/feed rate (Y-axis) during interpolation
operation
• If the 20SSC-H version is earlier than Ver.1.20
Circular arcs are deformed if the ratio of the pulse rate to the feed rate differs between the X-axis and the
Y-axis. Set ratios that are the same for the pulse rate to the feed rate for the X-axis and the Y-axis.
• If the 20SSC-H version is Ver.1.20 or later
Set the interpolation gear ratio selection function in the X- axis, Y-axis if the ratio of the pulse rate to the
feed rate differs between the X-axis and the Y-axis.
Interpolation gear ratio selection (The 20SSC-H Ver. 1.20 or later supports this method)
Use the interpolation gear ratio selection function when setting different pulse rate/feed rate (X-axis) and
pulse rate/feed rate (Y-axis) during interpolation operation.
Sets the interpolation gear ratio selection
To apply this function, set
[
BFM # 14002 b14
]
in the operation parameter 2 to ON (X-axis, Y-axis).
BFM Number
Data type
X-axis
Y-axis
Pulse rate
BFM #14005,#14004
BFM #14205,#14204
Positioning parameters
Feed rate
BFM #14007,#14006
BFM #14207,#14206
Positioning parameters
Interpolation gear ratio
selection
Operation parameter 2
BFM #14002 b14
Positioning parameters