Vacon CX - Page 35

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Service: +358-40-8371 150 E-mail: vacon@vacon.com
Page 34
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Multi-purpose Control Application IIMulti-purpose Control Application II
Multi-purpose Control Application IIMulti-purpose Control Application II
Multi-purpose Control Application II
t
OFF
= Par. 3. 17 t
ON
= Par. 3. 18
t
OFF
= Par. 3. 17 t
ON
= Par. 3. 18
t
a)
t
b)
UD012K45
DIA1: RUN FWD
STOP
External
BRAKE: OFF
ON
Digital or
relay output
DIA2: RUN REV
STOP
DIA1: START
PULSE
External
BRAKE: OFF
ON
Digital or
relay output
DIA2: STOP
PULSE
Figure 6-19 External brake control: a) Start/Stop logic selection par. 2. 1 = 0, 1 or 2
b)Start/Stop logic selection par. 2. 1 = 3.
4. 14. 1
4. 14. 1
4. 1
Acc/Dec ramp 1 shapeAcc/Dec ramp 1 shape
Acc/Dec ramp 1 shapeAcc/Dec ramp 1 shape
Acc/Dec ramp 1 shape
4. 24. 2
4. 24. 2
4. 2
Acc/Dec ramp 2 shapeAcc/Dec ramp 2 shape
Acc/Dec ramp 2 shapeAcc/Dec ramp 2 shape
Acc/Dec ramp 2 shape
The start and end of the acceleration and deceleration ramps can be smoothed with
these parameters. Setting value 0 gives linear ramp shape which causes acceleration
and deceleration to act immediately to the changes in the reference signal with the
Setting value 0.1—10 seconds for
4
. .
. .
. 1 (4
. .
. .
. 2) causes linear
acceleration/deceleration to adopt
an S-shape. Parameter 1
..
..
. 3 and 1
..
..
.
4 (4
. .
. .
. 3 and 4
. .
. .
. 4) determines the
time constant of acceleration/
deceleration in the middle of the
curve. See figure 6-20.
Figure 6-20 S-shaped acceleration/
deceleration.
[Hz]
[t]
4. 1 (4. 2)
4. 1 (4. 2)
UD009K20
1. 3, 1. 4
(4. 3, 4. 4)
time constant set by the parameter 1
..
..
. 3 and 1
..
..
. 4 (4
. .
. .
. 3 and 4
. .
. .
. 4).