6.4.1 Example: Change-over from terminal control to keypad control
•
The c
ontrol is executed primarily via the I/O terminals: Switch S1 serves to start and stop
the motor.
•
Switch S2 serves to oponally change over to local keypad control. In case of acvated
keypad control, the motor can only be started via the
keypad key. However, the
condion is that switch S1 is closed.
•
If s
witch S1 is opened again or the
keypad key is pressed, the motor is stopped
(irrespecve of the acve control source).
•
F
or details of the keypad control of the inverter, see the chapter "Keypad operang mode".
^ 245
Connecon plan Funcon
GND
AI1
AI2
AO1
10V
24V
DI1
DI2
DI3
DI4
DI5
DO1
X3
S1 S2
1k ...10k
0 ... 10 V
R1
Potenometer R1 Frequency setpoint selecon
Switch S1 Run
Switch S2 Acvate keypad control
Parameter Designaon Seng for this example
0x2631:001 (P400.01) Enable inverter Constant TRUE [1]
0x2631:002 (P400.02) Run Digital input 1 [11]
0x2631:004 (P400.04) Reset fault Not connected [0]
0x2631:012 (P400.12) Acvate keypad control Digital input 2 [12]
0x2824 (P200.00) Control selecon Flexible I/O conguraon [0]
Start, stop and rotang
direcon commands
Changing the control source during operaon
Example: Change-over from terminal control to keypad control
62