Setting Acceleration/Deceleration Time - Toshiba TOSVERT VF-nC3 Instruction Manual

5.3

Setting acceleration/deceleration time

5.3.1 Automatic acceleration/deceleration
 ：Automatic acceleration/deceleration
 Function
This automatically adjusts acceleration and deceleration time in line with load.
Refer to section 5.3.2 for setting acceleration/ deceleration time manually.
 =
* Adjusts the acceleration/deceleration time automatically within the range of 1/8 to 8 times as long as the time
set with the  or , depending on the current rating of the inverter.
 =
* Automatically adjusts speed during acceleration only. During deceleration, speed is not adjusted
automatically but reduced at the rate set with .
Output
frequency (Hz)

0
Set  (automatic acceleration/deceleration) to  or .
[Parameter setting]
Title
Automatic acceleration/deceleration

 When automatically setting acceleration/deceleration time, always change the acceleration/deceleration time
so that it conforms to the load. For inverters that require a fixed acceleration/deceleration time, use the
manual settings (, ).
 Setting acceleration/deceleration time (,) in conformance with mean load allows optimum setting
that conforms to further changes in load.
 Use this parameter after actually connecting the motor.
 When the inverter is used with a load that fluctuates considerably, it may fail to adjust the acceleration or
deceleration time in time, and therefore may be tripped.
 Do not use  = when using a brake module (optional).
Example in case the acceleration
and deceleration time become short
Deceleration
Acceleration
ti
ti
Function
E-5
Example in case the acceleration
Output
and deceleration time become long
frequency (Hz)

0
Time
[ ]
Acceleration
Adjustment range
0: Disabled (manual setting)
1: Automatic
2: Automatic (only at acceleration)
E6581595
5
Time
[ ]
Deceleration
Default setting
0