111
Setting of acceleration/deceleration time and acceleration/ deceleration pattern
(4) Set two kinds of acceleration/deceleration times (RT signal,
Pr. 44, Pr. 45, Pr. 147
)
Pr. 44
and
Pr. 45
are valid when the RT signal is ON, or the output frequency reaches or exceeds the setting of
Pr. 147
.
When "9999" is set to
Pr. 45
, the deceleration time becomes equal to the acceleration time
(Pr. 44)
.
For the RT signal, set "3" in any of
Pr. 178 to Pr. 184 (input terminal function selection)
to assign the function.
Acceleration/deceleration time changes when the RT signal turns ON or the output frequency reaches the
Pr.147
setting or
higher.
Pr. 147
Setting
Acceleration/Deceleration Time
Description
9999 (initial value)
Pr. 7, Pr. 8
No automatic switching of the acceleration/deceleration
time
0.00Hz
Pr. 44, Pr. 45
Second acceleration/deceleration time from a start
0.00Hz
≤
Pr. 147
≤
Set frequency
Output frequency
<
Pr. 147
:
Pr. 7, Pr. 8
Pr. 147
≤
Output frequency:
Pr. 44, Pr. 45
Acceleration/deceleration time automatic switching
∗
Set frequency
<
Pr. 147
Pr. 7, Pr. 8
No automatic switching, since output frequency will not
reach the switching frequency
∗
When the RT signal turns on, the acceleration/deceleration time switches to the second acceleration/deceleration time even when the output frequency is
not reached to
Pr. 147
setting.
NOTE
When the acceleration/deceleration pattern is S-pattern acceleration/deceleration A
(refer to page 113)
, the acceleration/
deceleration time is the time required to reach
Pr. 3 Base frequency
.
Acceleration/deceleration time formula when the set frequency is the base frequency or higher
Changing terminal assignment may affect the other functions. Set parameters after confirming the function of each
terminal.
REMARKS
The RT signal acts as the second function selection signal and makes the other second functions valid.
If the
Pr. 20
setting is changed, the
Pr. 125 and Pr. 126 (frequency setting signal gain frequency)
settings do not change.
Set
Pr. 125 and Pr. 126
to adjust the gains.
When the
Pr. 7, Pr. 8, Pr. 44 and Pr. 45
settings are 0.03s or less, the acceleration/deceleration time is 0.04s. At that time, set
Pr.
20
to "120Hz" or less.
Any value can be set to the acceleration/deceleration time but the actual motor acceleration/deceleration time cannot be made shorter
than the shortest acceleration/deceleration time determined by the mechanical system J (moment of inertia) and motor torque.
Parameters referred to
Pr. 3 Base frequency
Pr. 10 DC injection brake operation frequency
Pr. 29 Acceleration/deceleration pattern selection
Pr. 125, Pr. 126 (frequency setting gain frequency)
Pr. 178 to Pr. 184 (input terminal function selection)
Time
Acceleration time
Deceleration time
Output frequency
(Hz)
Set
frequency
Slope set
by
Pr. 7
Slope set
by
Pr. 8
Slope set
by
Pr. 44
(Pr. 45)
Slope set
by
Pr. 44
Pr. 147
setting
Guideline for acceleration/deceleration time at the
Pr. 3 Base frequency
of 60Hz (0Hz to set frequency)
t=
4
×
T
×
f
2
+
5
T
T: Acceleration/deceleration time setting (s)
f: Set frequency (Hz)
9
(Pr. 3)
2
9
Frequency setting (Hz)
60
120
200
400
Acceleration/
deceleration time (s)
5
5
12
27
102
15
15
35
82
305
Summary of Contents for FR-E710W-0.1K
Page 49: ...40 MEMO ...
Page 65: ...56 MEMO ...
Page 288: ...288 MEMO ...
Page 310: ...310 MEMO ...
Page 334: ...334 MEMO ...
Page 348: ...4 4 BCN C22005 679 MEMO BCN C22005 679 fm 4 ページ 2014年11月7日 金曜日 午前11時58分 ...