60
Setting the Acceleration/Deceleration Time
Chapter 5-6
5-6
Setting the Acceleration/Deceleration Time
The following description provides information on parameters related to
acceleration and deceleration time settings.
Trapezoidal and S-shape acceleration and deceleration are available. Using
the Sshape characteristic function for acceleration and deceleration can
reduce shock to the machinery when stopping or starting.
Setting the Acceleration/Deceleration Time (n16 through n19)
• Two acceleration times and two deceleration times can be set.
• The acceleration time is the time required to go from 0% to 100% of the
maximum frequency and the deceleration time is the time required to go
from 100% to 0% of the maximum frequency. The actual acceleration or
deceleration time is obtained from the following formula.
Acceleration/Deceleration time =
(Acceleration/Deceleration time set value)
× (Frequency reference value) ÷ (Max. frequency)
Acceleration time 2 and deceleration time 2 are enabled by setting 11 for
acceleration/deceleration time selection in any of the n36 through n39
parameters for multi-function input.
• Deceleration time 2 is also enabled by emergency-stop settings 19, 20,
21, and 22 in any of the n36, n37, n38, and n39 parameters for multi-
function input with n04 for interruption mode selection set to 0 (i.e.,
deceleration stop).
Note
Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz
and 1-Hz increments if the frequency is 100 Hz or over.
n16
Acceleration time 1
Changes during
operation
Yes
Setting
range
0.0 to 999 (s)
Unit of
setting
0.1 s
(see note)
Default setting
10.0
n17
Deceleration Time 1
Changes during
operation
Yes
Setting
range
0.0 to 999 (s)
Unit of
setting
0.1 s
(see note)
Default setting
10.0
n18
Acceleration Time 2
Changes during
operation
Yes
Setting
range
0.0 to 999 (s)
Unit of
setting
0.1 s
(see note)
Default setting
10.0
n19
Deceleration Time 2
Changes during
operation
Yes
Unit of
setting
0.0 to 999 (s)
Unit of
setting
0.1 s
(see note)
Default setting
10.0
Содержание J7 series
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Страница 15: ...1 CHAPTER 1 Overview 1 1 Function 2 1 2 Nomenclature 3...
Страница 47: ...33 CHAPTER 3 Preparing for Operation and Monitoring 3 1 Nomenclature 34 3 2 Outline of Operation 35...
Страница 54: ...40 Outline of Operation Chapter 3 2...
Страница 102: ...88 Other Functions Chapter 6 7...
Страница 158: ...144 Option Specifications Chapter 9 3...
Страница 159: ...145 CHAPTER 10 List of Parameters List of Parameters 146...
Страница 172: ...158 List of Parameters Chapter 10...
Страница 173: ...159 CHAPTER 11 Using the Inverter for a Motor Using the Inverter for a Motor 160...