4.7.1 Source selection of start and stop signal
The start and stop command of frequency converter is from 3 sources including panel control, terminal control and communication control and shall be selected by function parameter F0-02.
-
F0-02
|
Command source selection
|
Default value: 0
|
|
Set range
|
0
|
Operation panel command
channel (LED OFF)
|
Press RUN key or STOP key to
start or stop the machine
|
1
|
Terminal command
channel (LED ON)
|
Define DI terminal to the start
and stop command terminal
|
2
|
Communication command
channel (LED flashes)
|
Adopt MODBUS-RTU protocol
|
4.7.1.1 Start and stop control of the panel
Through keyboard operation, the function code F0-02=0, namely, the start and stop control mode of the panel is available. Press RUN key on the keyboard, the frequency converter will be operated (RUN indicator light will be on); when the frequency converter is in running state, press STOP key on the keyboard, the frequency converter will stop running (RUN indicator light will be off).
4.7.1.2 Start and stop control of the terminal
If toggle switch and solenoid switch are suitable for the start and stop of application system in respect of the start and stop control of terminal and also suitable for the electrical design in which the controller controls the operation of frequency converter by means of dry contact signal.
580 frequency converter has provided various terminal control modes, determined switch signal mode by function code F4-11 and determined the input port of start and stop control signal by Function Code F4-00~F4-09. Please see the detailed description of F4-11, F4-00 ~F4-09 and other function codes for the specific setting methods.
Example 1: The toggle switch is used for the frequency converter as the start and stop switch for the frequency converter, the forward running switch signal is connected to DI2 port, reverse running switch signal is connected to DI4 port, and the usage and setting method are as shown in the following figure:
Fig. 4-5 The examples of start and stop control mode of the terminal
In the control mode above, when SW1 command switch is closed, the frequency converter will start forward running; when SW1 command switch is open, the frequency converter will be stopped. However, when SW2 command switch is closed, the frequency converter will start reverse running; when SW2 command switch is open, the frequency converter will be stopped; when SW1 and SW2 are closed or open at the same time, the frequency converter will be stopped.
Example 2: The key electromagnet is used for the frequency converter as the start and stop switch for frequency converter, the start button signal is connected to DI2 port, stop button signal is connected to DI3 port and the reverse running button signal is connected to DI4 port. The usage and setting method are as shown in the following figure:
Fig. 4-6 The example of start and stop control mode of the terminal
For control mode in the figure above, SB1 button must be closed in normal start and running, or else, the frequency converter will be stopped immediately; the command of SB2/ SB3 button will take effect in closing and the running state of frequency converter shall be based on the final key action of three buttons.
Do'stlaringiz bilan baham: |