Acceleration/Deceleration Suspend Function - Toshiba Tosvert VF-AS1 Instruction Manual

 Torque bias function
Using this function, the load can be started
smoothly, by the motor produces enough torque
for load portion before the brake is released,
[Selection of external signals]
Voltage signals
Current signals
6.18

Acceleration/deceleration suspend function

 : Acceleration/deceleration
suspend function
 : Acceleration suspend frequency
 : Acceleration suspend time
• Function
Using these parameters, acceleration or deceleration can be suspended to let the motor run at a constant
speed. There are two ways to suspend acceleration or deceleration: suspending it automatically by setting
the suspend frequency and time using parameters, and suspending it by means of a signal from an
external control device.
These parameters are useful in starting and stopping transfer equipment, textile machines (winders), and
so on.
[Parameter setting]
Title

Acceleration/deceleration suspend function

Acceleration suspend frequency

Acceleration suspend time

Deceleration suspend frequency

Deceleration suspend time
Note1: The acceleration suspend frequency () should not be set below the starting frequency ().
Note2: The deceleration suspend frequency () should not be set below the stop frequency ().
Note3: If the output frequency is lowered by a stall prevention function, the acceleration suspend function may be
activated.
1) To suspend acceleration or deceleration automatically
Set the desired frequency with  or  and the desired time with  or , and then set
 to .
When the frequency set is reached, the motor stops accelerating or decelerating to rotate at a constant speed.
Output frequency [Hz]


RR/S4-CCA – 0~10V (0~250%)
RX-CCA – 0~±10V (-250~250%)
VI/II-CCA – 0~10V (0~250%)
VI/II-CCA – 4(0)~20mA (0~250%)
Function

F-31
Tension torque bias
as additional torque
Additional torque

(fixed direction)




 : Deceleration suspend frequency
 : Deceleration suspend time
Adjustment range
:Disabled
:Parameter setting
:Terminal input
~ Hz
~ sec.
~ Hz
~ sec.
Time [s]

E6581442
Reverse run
Forward run
6
Setting value




