Acceleration/Deceleration Time Change Function - Mitsubishi Electric MELSEC Q Series Programming Manual

7 AUXILIARY AND APPLIED FUNCTIONS

7.8 Acceleration/Deceleration Time Change Function

This function arbitrarily changes the acceleration/deceleration time at speed change,
when changing speed with Motion dedicated functions (CHGV, CHGVS) of Motion
SFC program (and also the Motion dedicated PLC instruction D(P).CHGV,
D(P).CHGVS).
Normally (speed change without changing the acceleration/deceleration time), the
acceleration/deceleration time is controlled by the positioning data of the servo
program or the parameter block at the start. However, if a speed change is executed
after setting the acceleration/deceleration time change parameter, speed changes at
the set acceleration/deceleration time.
POINTS
"Acceleration/deceleration time after change" is the acceleration/deceleration time
of positioning control being executed. "Acceleration/deceleration time after change"
is valid until the switching of the next positioning point. (Automatic decelerating
processing at positioning completion is also controlled by
"Acceleration/deceleration time after change".)
(1) Speed change instructions for acceleration/deceleration time
change
Classification Instruction
Motion SFC
CHGV
program
(Motion dedicated
function)
CHGVS
D(P).CHGV
Motion dedicated
PLC instruction
D(P).CHGVS
(2) Control details
After setting the acceleration/deceleration time change parameter, if speed
change command is executed, the acceleration/deceleration time changes.
The acceleration/deceleration time change parameter is set for every axis in the
servo data settings of MT Developer2.
Refer to Section 4.4 for details of acceleration/deceleration time change
parameter.
Refer to the "Q173DSCPU/Q172DSCPU Motion controller (SV22) Programming
Manual (Advanced Synchronous Control)" for details of command generation
axis parameter.
Ver.! : Refer to Section 1.3 for the software version that supports this function.
Ver.!
QDS
Description
Speed change request
Command generation axis
speed change request
Speed change request of the
specified axis
Speed change request of the
specified command generation
axis
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Remarks
The acceleration/deceleration time
change function toward the virtual
servo axis is invalid.
The acceleration/deceleration time
change function toward the virtual
servo axis is invalid.