Hitachi L300P - Manual (Page 94)

L300P Inverter
Configur
ing Dr
iv
e
P
a
ra
met
e
rs
3–25
Accel/Decel
Characteristics Standard (default) acceleration and deceleration is linear with time. The inverter CPU can also
calculate other curves shown in the graphs below. The sigmoid, U-shape, and reverse U-shape
curves are useful for favoring the load characteristics in particular applications. Curve settings
for acceleration and deceleration are independently selected parameters A097 and A098
respectively. You can use the same or different curve types for acceleration and deceleration.
time
Output frequency
time
Output frequency
time
Output frequency
time
Output frequency
time
Output frequency
time
Output frequency
time
Output frequency
time
Output frequency
Linear Sigmoid U-shape Reverse U-shape
Accel
A97
Decel
A98
00 Set value
Curve
01 02 03
Linear acceleration
and deceleration for
general-purpose use Avoid jerk on start/stop
for elevators; use for
delicate loads on con-
veyors Tension control for winding applications, web
presses, roller/accumulators
Typical
applications
“A” Function Run
Mode
Edit
Lo Hi
Defaults
Units SRW Display
Func.
Code
Name Description
–FE2
(CE)
–FU2
(UL)
–FR
(Jpn)
A097 Acceleration curve
selection
Set the characteristic curve
of Accel1 and Accel2, four
options:
00 Linear
01 S-curve
02 U-shape
03 Reverse U-shape
✘ ✘
00 00 00 — >A097 ACCEL
LINE Linear
A098 Deceleration curve
selection
Set the characteristic curve
of Decel1 and Decel2, four
options:
00 Linear
01 S-curve
02 U-shape
03 Reverse U-shape
✘ ✘
00 00 00 — >A098 DECEL
LINE Linear