Selection
number
Selection name Description
3
CS1 = Start
CS2 = Reverse
t
Output
frequency
FWD
REV
Ctrl signal 2
Ctrl signal 1
Run enable
Set
frequency
Set
frequency
0 Hz
1 2 3 4 6 7 8 9 10 11 12
5
Fig. 31: I/O A Start/stop logic = 3
1. Control signal (CS) 1 activates and
causes the output frequency to increase.
The motor operates forward.
2. CS2 activates and causes the direction to
start to change (FWD to REV).
3. CS2 becomes inactive, which causes the
direction to start to change (REV to
FWD), because CS1 is still active.
4. CS1 becomes inactive and the frequency
goes to 0.
5. CS2 activates, but the motor does not
start because CS1 is inactive.
6. CS1 activates and causes the output
frequency to increase again. The motor
operates forward because CS2 is
inactive.
7. The Run enable signal is set to FALSE,
which causes the frequency to go to 0.
Configure the Run enable signal with
parameter P3.5.1.15.
8. The Run enable signal is set to TRUE,
which causes the frequency to increase
to the set frequency, because CS1 is still
active.
9. The STOP button on the keypad is
pushed and the frequency that is fed to
the motor goes to 0. (This signal only
works if the value of P3.2.3 Keypad Stop
Button is Yes.)
10. The drive starts because the START
button on the keypad was pushed.
11. The drive is stopped again with the STOP
button on the keypad.
PARAMETER DESCRIPTIONS VACON · 239
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9
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