Acceleration/Deceleration Processing Function - Mitsubishi Electric MELSEC-L02SCPU User Manual

7.10.7

Acceleration/deceleration processing function

The acceleration/deceleration processing function is used to adjust the acceleration/deceleration when OPR control,
positioning control or JOG operation is performed. By adjusting the acceleration/deceleration processing according to
each control, the control can be implemented in a more detailed manner.
(1) Decision of acceleration/deceleration processing method
The acceleration/deceleration method is determined by the setting items specified below.
Function
OPR control
Positioning
control
JOG operation
Speed change
function
*1 Deceleration is to the creep speed. In the Count 2 method, the axis decelerates from the creep speed over the OPR
deceleration stop time prior to the completion of machine OPR ( Page 71, Section 7.6.1). Also during fast OPR, the
axis decelerates from the OPR speed over the OPR deceleration stop time.
*2 In the Stopper 3 method, the creep speed applies ( Page 82, Section 7.6.1 (6)).
V
Bias speed at start
128
Operation start speed
*1
acceleration/deceleration
Bias speed at start
Acceleration/deceleration
Bias speed at start
ACC/DEC time at speed
Target speed
Set acceleration time = Actual acceleration time
Acceleration time Target speed
OPR
OPR speed
time
Command speed
time
JOG ACC time JOG speed
New speed value
change
Set deceleration time = Actual deceleration time
Deceleration time
OPR
*2 acceleration/deceleration
*1
time
Deceleration stop time
JOG DEC time
DEC/STOP time at
speed change
When Bias speed at start is
other than 0
When Bias speed at start is 0
t