LINK Systems System 2500 PLS - Manual (Page 13)

System 2500 Operating & Installation Manual - Revision 07 2-5
the output relays on the System 2500. These choices are as follows:
C SETPOINTS - This option allows the operator to program the output relays to turn
on or off at different points in the machine stroke (referred to as the 'setpoints' of
an output channel). This function is described in Section 2.4.1.
C VIEW STATUS - Choosing this option will produce a display which indicates the
on/off status of the output relays, in groups of 8. This function is described in
Section 2.4.2.
C COUNTED OUTPUTS - This menu option gives the operator an opportunity to
program any of outputs 1 through 8 so that they are tied to a counter. This means
that these outputs can be programmed to be active only on every other stroke, or
every third stroke, or every fourth stroke, etc. This is useful for operations which
should take place on a periodic basis but not on every stroke. The procedure for
setting up outputs in this way is described in Section 2.4.3.
To select any of the above functions the operator must move the cursor to the desired function
using the arrow keys, then press the ENTER key.
2.4.1 SETPOINTS
Selection of the SETPOINTS item from the Outputs Menu will allow the operator to view and
modify the setpoints of the individual limit switch channels. These setpoints are the crankshaft
angles at which the corresponding output relay will turn on or off. If the mode selector keyswitch
is in the RUN position, the setpoints can only be viewed. If the keyswitch is in the PROG
(Program) position, setpoints can be added, erased, or edited. If the keyswitch is in the INC
(Increment) position, individual setpoints can be incremented or decremented in one degree
increments.
The operator must enter the number of the channel he wishes to view by keying in a valid
channel number and pressing the ENTER key. Valid channel numbers are 1 thru 16. Once a
particular channel is displayed, the operator may view other channels by using the up and down
arrow keys.
If the channel contains more than two setpoint pairs, the operator can use the left and right arrow
keys to view the other setpoint pairs. When a channel contains no setpoints, a message stating
that no setpoints are programmed will be displayed and the channel output will always be off.
2.4.1.1 Adding Setpoints
To add a setpoint pair the operator must select the desired channel and press the ADD key.