Operating Instructions

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3
Figure 19. I/O A Start/Stop logic = 4.
Preset frequency mode (P3.3.10)
You can use the preset frequency parameters to define certain frequency references in advance. These
references are then applied by activating/deactivating the digital inputs connected to parameters
P3.5.1.15, P3.5.1.16 and P3.5.1.17 (Preset frequency selection 0, Preset frequency selection 1 and Pre-
set frequency selection 2). Two different logics can be selected:
Selection
number
Selection name Note
4
CS1: Start (edge)
CS2: Reverse
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 activates causing the output
frequency to rise. The motor runs forward
because CS2 is inactive.
7
Run enable signal is set to FALSE, which drops
the frequency to 0. The run enable signal is con-
figured with parameter P3.5.1.10.
2
CS2 activates which causes the direction to start
changing (FWD to REV).
8
Before a successful start can take place, CS1
must be opened and closed again.
3
CS2 is inactivated which causes the direction to
start changing (REV to FWD) because CS1 is still
active.
9
Keypad stop button is pressed and the fre-
quency fed to the motor drops to 0. (This signal
only works if P3.2.3 Keypad stop button = Yes)
4
Also CS1 inactivates and the frequency drops to
0.
10
Before a successful start can take place, CS1
must be opened and closed again.
5
Despite the activation of CS2, the motor does not
start because CS1 is inactive.
11 CS1 inactivates and the frequency drops to 0.
6
CS1 activates causing the output frequency to rise
again. The motor runs forward because CS2 is
inactive.
t
Output
frequency
FWD
REV
Ctrl signal 2
Ctrl signal 1
Run enable
Set frequency
Set frequency
0 Hz
Keypad stop
button
1 2 3 4
5
6 7 8 9
1110
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10 11