Cautions When Acceleration/Deceleration Time Is Changed During Positioning Operation - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U
7.11.5 Cautions when acceleration/deceleration time is changed during positioning
operation
Select the acceleration/deceleration time before starting positioning operation.
If the acceleration/deceleration time selection is changed during positioning operation, the system will
perform the following operation depending on the operation status.
• When the acceleration/deceleration time selection is changed during acceleration/deceleration
The system will operate using the new acceleration/deceleration time. However, attention should be paid
to positioning operation because the acceleration time setting may not be changed with the intended
timing.
• When the acceleration/deceleration time selection is changed during positioning operation at the operation
speed
The system will operate using the new deceleration time. If the acceleration/deceleration time selection is
changed just before start of deceleration, the deceleration time setting may not be changed.
If the time needed for the remaining travel distance is shorter than the time needed for deceleration after a
change, the pulse output may decrease suddenly during deceleration.
For 2-speed positioning operation, interrupt 2-speed constant quantity feed, variable speed operation and
multi-speed operation, the system will operate using the new acceleration/deceleration time.
• When the acceleration/deceleration time selection is changed during deceleration
The system will operate using the deceleration time before the change. However, for 2-speed positioning
operation, interrupt 2-speed constant quantity feed, variable speed operation and multi-speed operation,
the system will operate using the changed acceleration/deceleration time.
Acceleration/deceleration time
change command (Ver. 1.30 or later)
Acceleration time
Deceleration time
Acceleration time 2 (Ver. 1.30 or later)
Deceleration time 2 (Ver. 1.30 or later)
→ For selection of the acceleration/deceleration time, refer to Section 7.7
X-axis
Operation command 2 BFM #519 b5
BFM #14018
BFM #14020
BFM #14108
BFM #14110
7 Before Starting Positioning Operation
7.11 Cautions for Positioning Operation
BFM Number
Y-axis
BFM #619 b5 Control data
BFM #14218 Positioning parameters
BFM #14220 Positioning parameters
BFM #14308 Positioning parameters
BFM #14310 Positioning parameters
1
2
3
4
5
Data type
6
7
8
9
10
133