7 Before Starting Positioning Operation
125
FX
3U
-20SSC-H Positioning Block User's Manual
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Int
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Sy
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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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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
*1.
Set approximate S-shaped acceleration/deceleration or trapezoidal acceleration/deceleration in
"acceleration/deceleration mode."
2. Interrupt 1-speed positioning operation
(Ver. earlier than 1.10, or BFM#519, #619 b6=OFF in Ver. 1.10 or later)
If the time needed for the travel distance (target address 1) is shorter than the deceleration time, the pulse
output stops at the target address 1.
If the travel distance is zero, immediate stop occurs when interrupt input INT0 turns ON.
*2.
For the relation between the time for the actual deceleration and the specified time for desired
deceleration, refer to the following.
→
Refer to Section 7.2
*3.
Set approximate S-shaped acceleration/deceleration or trapezoidal acceleration/deceleration in
"acceleration/deceleration mode."
Maximum speed
BFM #14009, #14008
BFM #14209, #14208
Positioning parameters
Acceleration time
BFM #14018
BFM #14218
Positioning parameters
Deceleration time
BFM #14020
BFM #14220
Positioning parameters
Acceleration/deceleration
mode
*1
Operation parameter
BFM #14000 b11
BFM #14200 b11
Positioning parameters
Acceleration time 2 (Ver.1.30 or later)
BFM #14108
BFM #14308
Positioning parameters
Deceleration time 2 (Ver.1.30 or later)
BFM #14110
BFM #14310
Positioning parameters
BFM Number
Data type
X-axis
Y-axis
Target address 1
BFM #501,#500
BFM #601,#600
Control data
Operation speed 1
BFM #503,#502
BFM #603,#602
Control data
Acceleration/deceleration
time change command
(Ver.1.30 or later)
Operation command 2
BFM #519 b5
BFM #619 b5
Control data
Mode selection for the
Interrupt 1-speed
constant quantity feed
Operation command 2
BFM #519 b6
BFM #619 b6
Control data
X-INT0 (input terminal)
-
-
Input terminal
Y-INT0 (input terminal)
-
-
Input terminal
Maximum speed
BFM #14009,#14008
BFM #14209,#14208
Positioning parameters
Acceleration time
BFM #14018
BFM #14218
Positioning parameters
Deceleration time
BFM #14020
BFM #14220
Positioning parameters
Acceleration/deceleration
mode
*3
Operation parameter 1 BFM #14000 b11
BFM #14200 b11
Positioning parameters
Acceleration time 2 (Ver.1.30 or later)
BFM #14108
BFM #14308
Positioning parameters
Deceleration time 2 (Ver.1.30 or later)
BFM #14110
BFM #14310
Positioning parameters
BFM Number
Data type
X-axis
Y-axis
Interrupt input (INT0)
Speed
Desired
deceleration
time
Approximate S-shaped control
Trapezoidal control
Operation speed
1
Start
Target address 1
Time
Traveling time < desired deceleration time
The time to stop is slightly earlier because
deceleration under the approximate S-shaped
control is slower than that of trapezoidal control,
while the travel distance is almost the same as
that of trapezoidal control.
*2
*2