7 Before Starting Positioning Operation
126
FX
3U
-20SSC-H Positioning Block User's Manual
7.11 Cautions for Positioning Operation
3. Interrupt 1-speed constant quantity feed (constant position stop mode)
(in Ver. 1.10 or later, when "ring counter setting" in the current address (b3 of BFM #14002/
#14202) is ON and "mode selection for interrupt 1-speed constant quantity feed" (b6 of BFM
#519/#619) is ON)
The system operates as follows when the travel distance to the target position (target address 1) after the
interrupt input (INT0) turns ON is shorter than the travel distance required for a deceleration stop:
1) When the version is earlier than Ver. 1.30
If the system cannot stop at the target position (target address 1) by the setting value of deceleration
time, it passes the 1st target position (target address 1), decelerates, and then stops in the 2nd target
position (target address 1). (Refer to Fig. A.)
*1.
Set approximate S-shaped acceleration/deceleration or trapezoidal acceleration/deceleration in
"acceleration/deceleration mode."
2) When the version is Ver.1.30 or later and "interrupt 1-speed constant quantity feed (constant position
stop mode) shortest allowable stop" is disabled, the system performs in the same way as versions earlier
than Ver. 1.30.
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
*1
Operation parameter 1 BFM #14000 b11
BFM #14200 b11
Positioning parameters
Ring counter upper limit value (Ver. 1.10 or later)
BFM #14101,#14100
BFM #14301,#14300
Positioning parameters
Ring counter setting
(Ver.1.10 or later)
Operation parameter 2 BFM #14002 b3
BFM #14202 b3
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
Target address 1
Figure A
Start
Interrupt input
(INT0)=ON
Travel distance
required for
deceleration stop