•
U
Up
p/
/D
Do
ow
wn
n C
Co
om
mm
ma
an
nd
d ((s
se
ettttiin
ng
g::
n
n 0
0 8
8 =
= ““ 1
15
5 ””))
With the FWD (or REV) Run command
entered, accel/decel is enabled by
inputting the UP or DOWN signals to
control circuit terminals S2 and S3 with-
out changing the frequency reference,
so that operation can be performed
at the desired speed.
Input Signal
UP (S2) DOWN (S3)
Function
Open
Open
HOLD
Closed
Open
UP (Frequency command approaches
frequency command upper limit)
Open
Closed
DOWN (Frequency command
approaches minimum output frequency
or frequency command lower limit,
whichever is larger)
Closed
Closed
HOLD
Time Chart at Up/Down Command Input:
U :
Up (accelerating) status
D :
Down (decelerating) status
H :
Hold (constant speed) status
UI :
Up status, with clamping at upper limit speed
DI :
Down status, with clamping at lower limit speed
30
GPD 205
S2
UP
S3
DOWN
SC
0V
UP
o o
DOWN
o o
FREQUENCY AGREED
SIGNAL
OUTPUT
FREQUENCY
UP COMMAND S2
DOWN COMMAND S3
FWD RUN
DI
Upper Limit
Speed
Lower Limit
Speed
H
U
H
D
H
U
H
D
H
DI
U
UI H
D
DI H
for more: efesotomasyon - Yaskawa drive