Danfoss VACON 3000 Application Manual page 168

VACON® 3000
Application Guide
FWD
Output
frequency
Set
frequency
0 Hz
Set
frequency
REV
Run enable
Ctrl signal 1
Ctrl signal 2
Keypad stop
button
1
Illustration 18: I/O A Start/stop logic = 4
1 Control signal (CS) 1 activates and causes the output
frequency to increase. The motor operates forward
because CS2 is inactive.
2 CS2 activates, which 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 ac-
tive.
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 in-
crease again. The motor operates forward, because
CS2 is inactive.
7.40 (ID 331) Motor Potentiometer Ramp Time
Location in the menu:
•
INU application: P3.3.4.3
Use this parameter to set the rate of change in the motor potentiometer reference when it is increased or decreased.
The parameter value is entered as Hz/s.
The frequency reference of the Motor Potentiometer is available in all the control places. You can change the motor potentiometer
reference only when the drive is in the run state.
If you set the output frequency slower than the Motor Potentiometer Ramp Time, the normal acceleration and deceleration times
give limits to it.
168 | Danfoss A/S © 2021.09
2 3 4 6
5
N O T I C E
7 8 9
7 The Run enable signal is set to OPEN, which causes
the frequency to go to 0. Configure the Run enable
signal with parameter P2.5.1.10.
8 Before the drive can start, you must open and close
CS1 again.
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 P2.4.3 Keypad Stop
Button is Yes.)
10 Before the drive can start, you must open and close
CS1 again.
11 CS1 becomes inactive and the frequency goes to 0.
Parameter descriptions
t
10 11
AB319735759636en-000101 / DPD01822