Lenze i550 - Example: Change-Over from Terminal Control to Network Control

6.4.2 Example: Change-over from terminal control to network control
•
The control is executed primarily via the I/O terminals. The switch S1 serves to start and
stop the motor.
•
The switch S2 serves to acvate the network control. In the case of acvated keypad con-
trol, the motor can only be started via the network control word. However, the condion is
that the switch S1 is closed.
•
If the switch S1 is opened again, the motor is stopped (irrespecve of the acve control
source).
Connecon plan Funcon
GND AI1 AI2 AO1
10V 24V DI1 DI2 DI3 DI4 DI5 DO1
X3
S1 S2
1k ...10k
0 ... 10 V
R1
Potenometer R1 Frequency setpoint selecon
Switch S1 Run
Switch S2 Acvate network control
Parameter Designaon Seng 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]
0x2631:037 (P400.37) Acvate network control Digital input 2 [12]
0x2824 (P200.00) Control selecon Flexible I/O conguraon [0]
t
t
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
-40 Hz
-60 Hz
-50 Hz
-30 Hz
-20 Hz
-10 Hz
t
t
t
t
t
t
t
t
0x2DDD
Network control word: Run forward
Constant TRUE [1] Enable inverter
Digital input 2 [12]
Digital input 1 [11]
Local control active [104]
Remote control active [105]
Running [50]
Stop active [53]
Output signals
Status signals
Output frequency
Activate network control
Run
Input signals
Frequency setpoint selection
FunctionTrigger
The status signals can be assigned to digital outputs. 4Congure digital outputs ^ 263
①
When changing over to another control source, the motor is rst stopped with the stop method set in 0x2838:003 (P203.03).
②
The motor will also be stopped if the "Run" funcon is deacvated (irrespecve of the acve control source).
③
Commands via the network are ignored if the network control is not acve.
Start, stop and rotang direcon commands
Changing the control source during operaon
Example: Change-over from terminal control to network control
81