Toshiba Q9+ - Linear acceleration and deceleration is the default pattern and is used on most applications.

Direct Access Parameter Information
Q9 Plus ASD Install/Op Manual
https://www.toshiba.com/tic/ 175
Acceleration/Deceleration Pattern 1
Program Special  ACC/DEC 1 – 4 Settings
This parameter enables a user-selected preprogrammed output
profile that controls the acceleration and deceleration pattern for
the 1 Accel/Decel parameters (see F009 and F010).
Settings:
0 — Linear
1 — S-Pattern 1
2 — S-Pattern 2
The figures below provide a profile of the available accel/decel
patterns.
Direct Access Number —
F502
Parameter Type — Selection List
Factory Default — Linear
Changeable During Run — Yes
Linear acceleration and deceleration is
the default pattern and is used on most
applications.
S-pattern 1 is used for applications that
require quick acceleration and
deceleration. This setting is also popular
for applications that require shock
absorption at the start of acceleration or
deceleration.
S-pattern 2 decreases the rate of
change above the base frequency for
acceleration and deceleration.
F502 – F503