Toshiba Q9 Plus ASD, Installation & Operation Manual

Page: 159 / 434

E6581611
E-4
5
5.2 Setting acceleration/deceleration time

 ：
Acceleration time 1
 ：
Setting of acceleration/deceleration time unit
 ：
Deceleration time 1
 ：
Automatic acceleration/deceleration

Function
1) For acceleration time 1  programs the time that it takes for the inverter output frequency to go
from 0.0Hz to maximum frequency

.
2) For deceleration time 1  programs the time that it takes for the inverter output frequency to go
from maximum frequency

to 0.0Hz.
Output frequency (Hz)
 

Time [sec]
O


 (Manual setting)
[Parameter setting]
Title Function Adjustment range Default setting
 Acceleration time 1 0.0-3600 (360.0) (s) 10.0

Deceleration time 1 0.0-3600 (360.0) (s) 10.0

Setting of acceleration/deceleration
time unit
0: -
1: 0.01s unit (after execution: 0)
2: 0.1s unit (after execution: 0)
0
Note1): Setting increment unit can be changed to 0.01 seconds by parameter f519 .
Note2):
f519
=
2
: When the acceleration/deceleration time is set to 0.0 seconds, the inverter accelerates
and decelerates 0.05 seconds.
f519
=
1
: When the acceleration/deceleration time is set to 0.00 seconds, the inverter accelerates
and decelerates 0.01 seconds.
,
If the programmed value is shorter than the optimum acceleration/deceleration time determined by load
conditions, overcurrent stall or overvoltage stall function may make the acceleration/deceleration time longer
than the programmed time. If an even shorter acceleration/deceleration time is programmed, there may be an
overcurrent trip or overvoltage trip for inverter protection. (Refer to section 13.1 for details)