# Setting Acceleration/deceleration Time - Toshiba VF-S15 Instruction Manual

Industrial inverter for 3-phase induction motors.

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
2) For deceleration time 1  programs the time that it takes for the inverter output frequency to go
5
[Parameter setting]



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
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)
from 0.0Hz to maximum frequency .
from maximum frequency  to 0.0Hz.
Output frequency (Hz)

O

Title
Function
Acceleration time 1
Deceleration time 1
Setting of acceleration/deceleration
time unit
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.
  (Manual setting)
Time [sec]

0.0-3600 (360.0) (s)
0.0-3600 (360.0) (s)
0: -
1: 0.01s unit (after execution: 0)
2: 0.1s unit (after execution: 0)
E-4
E6581611
Default setting
10.0
10.0
0