Yaskawa JAPMC-MC2300 - Manual (Page 136)

6.1 Example Setting of Motion Parameters for the Machine
6.1.6 Acceleration/Deceleration Settings
6-12
( 2 ) Acceleration/Deceleration Units and Speed Changes Over Time
The Straight Line Acceleration /Acceleration Time Constant (OL 36) and Straight Line Deceleration /Deceleration
Time Constant (OL 38) settings change depending on the Acceleration/Deceleration Degree Unit Selection
(OW 03, bits 4 to 7) setting as shown in the following figure.
When the Acceleration/Deceleration Degree Unit Selection (OW 03, Bits 4 to 7) Set to 0: Refer-
ence Unit/s 2
Set value of OL 36 and OL 38 are handled as the linear acceleration rate and linear deceleration rate.
When the Acceleration/Deceleration Degree Unit Selection (OW 03, Bits 4 to 7) Set to 1: ms
Set value of OL 36 is handled as the linear acceleration time constant required to reach rated speed from zero
using linear acceleration. Set value of OL 38 is handled as the linear deceleration time constant required to
reach zero from the rated speed using linear deceleration.
0
(t)
(100%)
(%)
Straight line
acceleration
OL
36
Straight line
deceleration
OL
38
Time required to reach
reference speed = Reference
speed
÷ linear acceleration
Time required to reach 0
= Reference speed
÷ linear deceleration
0
(t)
(100%)
(%)
Straight Line
Acceleration Time
Constant (OL
36)
Straight Line
Deceleration Time
Constant (OL
38)