Vacon 10 - Frequency Reference Parameter Details

FWD
REV
Set
frequency
Set
frequency
0 Hz
Run enable
Ctrl signal 1
Ctrl signal 2
Keypad
stop button
1 2 3 5 6 7 8 9
10 11 12
Output
frequency
t
`
4
parameter descriptions vacon • 71
24-hour support +358 (0) 201 212 575 • Email: vacon@vacon.com
9
Figure 9.5: Start/Stop logic, selection 2
Selection
number
Selection name Note
2
CS1:Forward(edge)
CS2:Backward(edge)
Shall be used to exclude the possibility of an
unintentional start. The Start / Stop contact must
be opened before the motor can be restarted.
Explanations:
1 Control signal (CS) 1 actives causing the
output frequency to rise. The motor runs
forward.
7 CS1 activates and the motor accelerates
(FWD) towards the set frequency.
2 CS2 activates which, however, has no
effect on the output frequency because
the first selected direction has the high-
est priority.
8 Run enable signal is set to FALSE, which
drops the frequency to 0.The run enable
signal is configured with par. 5.7.
3 CS1 is inactivated which causes the
direction to start changing (FWD to REV)
because CS2 is still active.
9 CS1 activates again causing the motor to
accelerate (REV) towards the set fre-
quency.
4 CS2 inactivates and the frequency fed to
the motor drops to 0.
10 CS1 activates again causing the motor to
accelerate (REV) towards the set fre-
quency.
5 CS2 activates again causing the motor to
accelerate (REV) towards the set fre-
quency.
11 CS1 inactivates and the frequency fed to
the motor drops to 0.
6 CS2 inactivates and the frequency fed to
the motor drops to 0.