Hitachi L100 User Manual

“A” Group: Standard Functions

Configur

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Dr

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The L100 inverter features two-stage acceleration and deceleration ramps. This gives 
flexibility in the profile shape. You can specify the frequency transition point, the point 
at which the standard acceleration (F_02) or deceleration (F_03) changes to the second 
acceleration (A_92) or deceleration (A_93). Select a transition frequency method via 
A_94 as depicted below.

NOTE: For A_95 and A_96, if you set a very rapid Acc1 or Dec1 time (less than 1.0 
second), the inverter may not be able to change rates to Acc2 or Dec2 before reaching 
the target frequency. In that case, the inverter decreases the rate of Acc1 or Dec1 in order 
to achieve the second ramp to the target frequency.

Accel 1

Accel 2

2CH 

input

Frequency 

transition point

A 95

A_94 = 00

A_94 = 01

Output

frequency

Output

frequency

t

t

Accel 1

Accel 2

t

Transition via 2CH input

Transition via freq. level

0

0

1
0

A_92 Acceleration (2) time 

setting

Duration of 2nd segment of 
acceleration, range is:
0.1 to 3000 sec.

✔

15.0

15.0

15.0

sec.

ACC 2    0015.0s

A_93 Deceleration (2) time 

setting

Duration of 2nd segment of 
deceleration, range is:
0.1 to 3000 sec.

✔

15.0

15.0

15.0

sec.

DEC 2    0015.0s

A_94 Select method to switch 

to Acc2/Dec2 profile

Two options for switching 
from 1st to 2nd accel/decel:
00 ...2CH input from terminal
01 ...transition frequency

✘

00

00

00

—

ACC CHG       TM

A_95 Acc1 to Acc2 frequency 

transition point

Output frequency at which 
Accel1 switches to Accel2,
range is 0.0 to 360.0 Hz

✘

0.0

0.0

0.0

Hz

ACC CHFr 000.0Hz

A_96 Dec1 to Dec2 frequency 

transition point

Output frequency at which 
Decel1 switches to Decel2,
range is 0.0 to 360.0 Hz

✘

0.0

0.0

0.0

Hz

DEC CHFr 000.0Hz