Explanation Of The Basic Parameters; Setting The Acceleration And Deceleration Times; Automatic Acceleration/Deceleration - Toshiba TOSVERT VF-P7 Instruction Manual

5. Explanation of the basic parameters

Basic parameters refer to parameters you need to set before the first use after purchase.

5.1 Setting the acceleration and deceleration times

 ：Automatic acceleration/deceleration
 ：Acceleration time #1
 ：Deceleration time #1
･ Function
1)The acceleration time parameter  is to set the time in which the inverter's output
frequency goes up from 0 Hz to the maximum frequency .
2)The deceleration time parameter  is to set the time in which the inverter's output
frequency goes down from the maximum frequency  to 0 Hz.
5.1.1 Automatic acceleration/deceleration
In this mode, the acceleration and deceleration times are changed automatically
according to the load applied.
＊ The acceleration and deceleration times are adjusted automatically within a range of
1/8 to 8 times longer than the times set with the  and the , respectively.
Output frequency
[Hz]

０
Acceleration time
Set the parameter (automatic acceleration/deceleration) at (enabled).
[Parameter setting]
Title

☆ When the automatic acceleration/deceleration is selected (enabled), the acceleration/deceleration times
constantly change according to the load condition. So, use the manual setting(,) for machines
that need to be accelerated and decelerated always at constant rates.
☆
Set manually the acceleration and deceleration times (＝) in the case that braking resistor or
braking unit is applied (＝).
☆Before setting this parameter, connect the inverter to the motor.
☆ For a load that requires the inverter to be operated almost at its rated current, the motor may fail to reach
the specified speed within the specified time. In such a case, set manually the acceleration and
deceleration times (＝).
Under a small load
Deceleration time
Acceleration and deceleration times
→ Relatively short
Function
Automatic acceleration/
deceleration
 ＝
Output frequency
[Hz]

０
Time [s]
Acceleration time
Acceleration and deceleration times
→ Relatively long
Adjustment range
: Manual acceleration/deceleration
: Enabled (automatic setting)
E-1
Under a large load
Deceleration time
Default setting

Time [s]