Manually Setting The Acceleration And Deceleration Times - Toshiba TOSVERT VF-A7 Instruction Manual

If you set in advance the acceleration and deceleration times (,) so that they match the
average load condition, you can make the optimum setting to control the motor with a higher accuracy
according to changes in the load applied.
[Procedure for setting the automatic acceleration and deceleration times]
Key operated
MON
ENT
ENT

5.1.2 Manually setting the acceleration and deceleration times

This section describes how to set the acceleration time (the operation frequency goes up from
0Hz to the maximum frequency  and the deceleration time (the operation frequency goes
down from the maximum frequency  to 0Hz).
Output frequency [Hz]

[Parameter setting]
Title


Note) The minimum setting of acceleration and deceleration times have been set respectively
at 0.1sec. by default, but they can be changed within a range of 0.01 to 10 sec. by
changing the setting of the parameter  (Acceleration/deceleration time lower
limit).
If the acceleration or deceleration time is set shorter than the optimum time, which varies
according to the loading condition, it may become longer than the set time because of the
over-current stall function or the over-voltage stall function. In addition, if the acceleration or
deceleration time is set much shorter, the inverter trips more easily to protect itself from an
over-current or an over-voltage.
(Refer to 12.1 for details.)
LED display
The running frequency is displayed. (If the monitor display
mode setting parameter

frequency])
Press the [MON] key to call up the first basic

parameter  (Automatic acceleration/deceleration).
Press the Enter key to display the parameter setting.

Change the parameter setting to  (automatic

acceleration/deceleration enabled) by pressing
Press the Enter key to save the change. Then,  and
 
the set value are displayed alternately.

Function
Acceleration time #1
Deceleration time #1
Refer to 6.23.3 for details.
Operation

  (Manual setting)
Time
[s]

Adjustment range
 (See note.) ~  [s]
 (See note.) ~  [s]
E-2
is set at [Running
key.
Default setting
Model dependent
Model dependent