Note: In the case of S-pattern acceleration/deceleration ” A ” , acceleration time is
the time taken for acceleration up to the basic frequency.
2 nd acceleration/deceleration time LI] m
2 nd acceleration/deceleration time can be selected with external contact signal
(it is selected when terminal RT is connected to SD> .
Initial setting: 5 sec.
Example in ” PU operation ” mode
When the inverter is operated at 120Hz of
output frequency with ” frequency at 5 V
input voltage ”
set at 60H2, and acceleration
time set at 3 sec., the acceleration time is
6 sec.
~ ,20Hz
s
t
F
- - - - - - - - -
$ )---
I
WHZ
/
--
I
I
I
m) I
I
I
I
4
5
IlV
-
Time’
ACCELERATION/DECELERATION PATTERN SELECTION
Acceleration/deceleration pattern selection [z1
q
Setting ” 0 ” (Linear acceleration/deceleration)
Frequency (speed) increases linearly up to the frequency
(fm> set for 5 V frequency reference voltage signal.
t
Setting ” 1 ”
(S-pattern acceleration/deceleration ” A ” >
Acceleration is faster when motor output torque is larger,
and slower when motor output torque is smaller.
Acceleration/deceleration time can be shortened when thi
t
pattern is selected.
-lOO-
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