User manual

Implementing a Basic Application
SR2MAN01 11/2007 157
Application: Implementing a Two-way Switch
Description In the text that follows you will find detailed information on the procedure for entering
a ladder diagram for a two-way switch.
You should proceed as follows:
z Go to the programming screen,
z Enter the contacts in the first line,
z Enter the coil in the first line and join it to the contacts,
z Enter the contacts in the second line,
z Join the second line to the first,
z Launch the program.
From the main screen (the one shown on power-up), follow the instructions in the
Action column and press the specified button.
The Screen column shows what the user will see on the smart relay display screen.
The Comments column provides some additional information on entry and display actions.
Go to the
Programming
Screen
To access the screen from which we will program the two-way switch, proceed as
follows:
Step Action Screen Comment
1
Position the cursor on
PROGRAMMING; it will flash
when selected.
2
After briefly displaying: LINE 1
(for approx. two seconds), a
flashing cursor is displayed.
3 Pressing and holding down the
Shift key (white) will make a
contextual menu appear that is
used for programming the
contacts and the coils.
Menu / OK
CONFIGURATION
RUN/STOP
PARAMETERS
PROGRAMMING
Menu / OK
LINE 3
LINE 3
LINE 2
ins - + Del.