User Manual of A90 Series Inverter
232
Terminals”.
Time t
Output
frequency
0
Fundamental
frequency of
acceleration and
deceleration time
F15.09
Set deceleration
time
Set acceleration
time
Actual
acceleration time
Actual deceleration time
Set frequency
Fig. 7-32 Schematic Diagram of Acceleration and Deceleration Time
As shown in Fig. 7-32, the acceleration time is defined as the time of acceleration from
0.00 Hz to the reference frequency of acceleration/deceleration time; and the deceleration
time is defined as the time of deceleration from the reference frequency of
acceleration/deceleration time to 0.00 Hz. The actual acceleration/deceleration time varies
according to the ratio between the set frequency and reference frequency.
The reference frequency of acceleration/deceleration time is set by function code
F15.09 that represents the reference frequency of acceleration/deceleration time. If
F15.09=0, the reference frequency depends on the function code F00.16 (maximum
frequency). Assuming F00.16=100.00Hz, the acceleration (deceleration) time is expressed
as the time for the output frequency to increase (decrease) from 0.00Hz (100.00Hz) to
100.00Hz (0.00Hz).
Functio
n code
Function code name
Parameter
description
Unit
Default
setting
Attribute
F15.10
Automatic switching of
acceleration and deceleration
time
0: Invalid
1: valid
0
○
F15.11
Switching frequency of
acceleration time 1 and 2
0.00 to maximum
frequency F00.16
Hz
0.00
●
F15.12
Switching frequency of
deceleration time 1 and 2
0.00 to maximum
frequency F00.16
Hz
0.00
●
