LINK Systems System 2500 PLS - Manual (Page 11)

System 2500 Operating & Installation Manual - Revision 07 2-3
The Mode Selector is a three position keyswitch. The key may only be removed in the RUN
position. The operating conditions for the three positions are as follows:
C RUN - This is the normal operating mode of the System 2500. When the key is in
this position, the operator can only view limit switch setpoints or the die
protection input modes. He cannot add, erase, or edit PLS setpoints in this
position, nor can he edit the die protection setup. There is no E-Stop issued by the
System 2500 in this mode unless an error condition is present.
C PROG - This is the program mode of the System 2500. When the key is in this
position limit switch setpoints can be added, erased, or edited; Die-Protection can
be edited; and setups can be stored to memory or recalled from memory. An
E-Stop is always issued by the System 2500 in this mode to prevent machine
motion while programming.
C INC - This is the increment mode of the System 2500. When the key is in this
position, PLS setpoints can be increased or decreased by one degree at a time. An
E-Stop is not issued by the System 2500. The increment mode allows the operator
to fine tune PLS setpoints while the machine is in operation.
2.2 Menu Selection Using the LCD
The LCD (liquid crystal display, in the center of the OIT) provides the operator with information
needed to program the unit. This is done by displaying a menu (list of choices) and allowing the
operator to select one of the menu items. On each menu one of the choices listed will be
blinking. The blinking effect is called the cursor and is used to identify which item on the list the
operator has selected. The cursor can be moved to a different choice on the menu using the
arrow keys (see the figure on the foldout in the back of the manual). Once the cursor is on the
item desired, the operator can press the ENTER key to get further information about that item.
The operator is not required to memorize any function names or keyboard entry sequences.
2.2.1 Main Menu
The main menu is the first list of options offered to the operator during programming of the
System 2500. There are five major functions from which to choose:
C PLS - (Programmable Limit Switch) This is the function of the unit wherein the
output relays can be programmed to switch on or off at specified points of the
machine cycle.
C COUNTERS - There are three user presettable counters in the System 2500 which