Chapter 4 Explanation of Functions

4.2.24 Two-stage acceleration/deceleration function (2CH)

The two-stage acceleration/deceleration function allows you to

Related code

F002/F202/F302: Acceleration (1) time setting,

change the acceleration or deceleration time while the inverter is

1st/2nd/3rd motors

accelerating or decelerating the motor.

F003/F203/F303: Deceleration (1) time setting,

Select one of the following three methods of changing the

1st/2nd/3rd motors

acceleration or deceleration time:

A092/A292/A392: Acceleration (2) time setting,

1) Changing the time by the signal input to an intelligent input

1st/2nd/3rd motors

A093/A293/A393: Deceleration (2) time setting,

terminal

1st/2nd/3rd motors

2) Automatically changing the time when the output frequency

A094/A294: Select method to switch to

reaches a specified frequency

Acc2/Dec2 profile, 1st/2nd motor

A095/A295: Acc1 to Acc2 frequency transition

3) Automatically changing the time only when switching the

point, 1st/2nd motors

motor operation from forward rotation to reverse rotation, or

A096/A296: Dec1 to Dec2 frequency transition

vice versa

point, 1st/2nd motors

Selecting the 3rd control system enables the change of the

C001 to C008: Terminal [1] to [8] functions

 

acceleration or deceleration time only by terminal input. Not bytwo-stage acceleration/deceleration frequency.

To change the acceleration/deceleration time by the signal input to an intelligent input terminal, assign function "09" (2CH) to one of the terminal functions C001 to C008.

Item

Function code

Data

Description

Acceleration (2) time

A092/A292/

0.01 to

(See examples 1 and 2.)

setting

A392

3600. (s)

 

Deceleration (2) time

A093/A293/

0.01 to

(See examples 1 and 2.)

setting

A393

3600. (s)

 

 

 

00

Changing the time by the signal input to the 2CH terminal

 

 

(See example 1.)

Select method to switch

 

 

A094/A294

01

Changing the time at the two-stage acceleration/deceleration frequency

to Acc2/Dec2 profile

(See example 2.)

 

 

 

 

02

Valid only while the inverter is switching the motor between forward and

 

 

reverse operations (See example 3.)

 

 

 

Acc1 to Acc2 frequency

A095/A295

0.00 to

Valid when "01" is specified for the select method to switch to Acc2/Dec2

transition point

400.0 (Hz)

profile (A094/A294) (See example 2.)

 

Dec1 to Dec2 frequency

A096/A296

0.00 to

Valid when "01" is specified for the Select method to switch to Acc2/Dec2

transition point

400.0 (Hz)

profile (A094/A294) (See example 2.)

 

(Example 1) When "00" is specified for "A094" or "A294" (Example 2) When "01" is specified for "A094" or "A294"

Output

 

Output

 

 

 

 

frequency

 

 

 

frequency

 

 

 

 

 

 

 

 

 

 

 

 

 

Acceleration

Deceleration

Acceleration

Decelerati

on

 

time 2

time 2

time 2

time 2

Acceleration

Deceleration

Acceleration

Deceleration

time 1

time 1

time 1

 

time 1

(Example 3) When "02" is specified for "A094" or "A294"

 

Deceleration

Deceleration

Output

 

time 2

 

time 1

 

 

 

 

 

 

frequency

 

 

 

 

 

 

 

 

 

 

 

Acceleration

Acceleration

 

 

 

 

 

time 1

time 2

 

 

 

 

 

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Image 88
Hitachi SJ700-2 instruction manual Two-stage acceleration/deceleration function 2CH