Mitsubishi FX3U-20SSC-H - Page 135

7 Before Starting Positioning Operation
129
FX3U-20SSC-H Positioning Block User's Manual
1
Introduction
2
System configuration
3
Example Connection
4
Installation
5
Wiring
6
Memory configuration and data
7
Before starting positioning control
8
Manual control
9
Positioning Control
10
Table Operation
7.11 Cautions for Positioning Operation
2) If the travel distance of the second speed is small
If the travel time at the second speed is smaller than the time
*1
needed to decelerate from the operation
speed 2, deceleration is started from operation speed 1.
If the travel distance at the second speed is zero, the operation decelerates to stop for the travel distance
to be the target address 1 as if it were a 1-speed positioning operation. (No error is caused.)
*1. 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
*2. Set approximate S-shaped acceleration/deceleration or trapezoidal acceleration/deceleration in
"acceleration/deceleration mode."
BFM Number
Data type
X-axis Y-axis
Travel distance
Target address 1 BFM #501,#500 BFM #601,#600 Control data
Target address 2 BFM #505,#504 BFM #605,#604 Control data
Operation speed setting
Operation speed 1 BFM #503,#502 BFM #603,#602 Control data
Operation speed 2 BFM #507,#506 BFM #607,#606 Control data
Acceleration/deceleration
time change command
(Ver.1.30)
Operation command 2 BFM #519 b5 BFM #619 b5 Control data
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
*2
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
Speed
Desirred deceleration time
Trapezoidal control
Operation
speed 1
Target address 2
Approximate
S-shaped control
Start
Travel < desired deceleration time
Time
*1
*1