Toshiba VF-A7 Secondary acceleration/deceleration, Motor needs to be speeded up to

6.23 Secondary acceleration/deceleration

6.23.1Acceleration and deceleration patterns

 ：Acceleration/deceleration pattern #1

 ：S-pattern lower limit adjustment amount

 ：S-pattern upper limit adjustment amount

・Function

These parameters are used to select an acceleration pattern and a deceleration pattern.

Title	Function	Adjustment range	Default setting
	Acceleration/deceleration pattern #1	: Linear, : S-pattern #1,	
		: S-pattern #2
	S-pattern lower limit adjustment	～ [%]	
	amount
	S-pattern upper limit adjustment	～ [%]	
	amount

１）Linear acceleration and deceleration		[Hz]
	Max. freq.
Typical pattern of acceleration and		
deceleration. This pattern is used in
most cases.
		０



[s]



2) S-pattern acceleration/deceleration

#1

[Hz]

This pattern is used in cases where

Max. freq.



a motor needs to be speeded up to

Setting freq.

or slowed down from a high-speed

range of over 60 Hz in a short time

or where there is a need to absorb

shocks at the start of acceleration

and deceleration. This pattern of

0

[s]

acceleration and deceleration is

%



×



suitable for the operation of

×

%







transportation and lifting equipment.

Effective acceleration time

3) S-pattern acceleration/deceleration

#2

[Hz]

In this pattern, the motor speeds up

Max. freq.



slowly in weak-field areas where it

Setting freq.

produces relatively small torque.

This pattern of acceleration and

Base freq.

deceleration is suitable for the

operation of high-speed spindles, etc.

０



[s]

Effective acceleration time

F-50