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Accel/decel – Hitachi SJ200 Series User Manual

Page 98

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“A” Group: Standard Functions

Configur

ing

Dr

iv

e P

a

ra

m

e

ters

3–26

Accel/Decel

Standard acceleration and deceleration is
linear. The inverter CPU can also calculate
an S-curve acceleration or deceleration
curve as shown. This profile is useful for
favoring the load characteristics in particu-
lar applications.

Curve settings for acceleration and decel-
eration are independently selected. To
enable the S-curve, use function A097
(acceleration) and A098 (deceleration).

Acceleration period

S-curve

Linear

Accel. curve selection

Target

freq.

Output

frequency

t

0

A097 = 00

A097 = 01

“A” Function

Run

Mode

Edit

Defaults

Func.

Code

Name /

SRW Display

Description

–FEF

(EU)

–FU

(USA)

Units

A097 Acceleration curve

selection

Set the characteristic curve of
Acc1 and Acc2, two options:
00... linear
01... S-curve

00

00

ACC LINE L

A098 Deceleration curve

selection

Set the characteristic curve of
Acc1 and Acc2, two options:
00... linear
01... S-curve

00

00

DEC LINE L