LINK Systems System 2500 PLS - Manual (Page 19)

System 2500 Operating & Installation Manual - Revision 07 2-11
2.4.3.3 CHANNELS
If the operator wishes to tie a PLS output to the special counter, the ADD key must be pressed.
After this key is pressed, the display will prompt for entry of the channel to be added. PLS
channels 1 through 8 may be tied to the counter. Key in the desired channel number and press
ENTER. The display will then return to the Counted Outputs setup information screen with the
new PLS channel number added to the list.
Any channel to be tied to the counter can have only one setpoint pair programmed (one 'on'
setpoint and one 'off' setpoint). Additionally, the channel cannot be one that is already used as
the assigned output for a Die-Prot Cyclic fault. If the unit is set up for Auto Single Stroke
operation, outputs 7 and 8 cannot be tied to the counter. Attempting to add any channel
previously programmed as described here will cause an error message to appear.
To remove a PLS output from being tied to the counter, the operator must first press the
REMOVE key. The LCD will then request the number of the channel to be removed. Key in the
channel number and press ENTER. The display will then return to the Counted Outputs setup
information screen with this channel number deleted from the list. Remember that removing an
output from being tied to the counter means that the output will no longer be held off until the
active stroke, but will now be active on every stroke. If this is not desirable the operator may
turn the output off by erasing its setpoints (see Section 2.4.1.2).
Any channel that has been restricted previously cannot be tied to the counter nor removed from
being tied to the counter. Any unrestricted channel that has been tied to the counter can then be
restricted to prevent any further changes.
2.4.3.4 COUNT
When setting up outputs that are tied to the counter, the operator may find it necessary to adjust
the count that the machine is presently on to make the outputs become active on the proper
stroke. To do so the operator must use the arrow keys to move the cursor to the current count
value (upper right corner), then key in new value and press ENTER. For example, suppose the
press has a repeating five stroke sequence where certain PLS outputs are to become active on the
fifth stroke. If during setup of this function the press is mechanically two strokes away from the
stroke where the PLS outputs are to be active, then the operator should enter the number 3 for the
present COUNT.
2.4.3.5 ACTIVE COUNT
The ACTIVE COUNT is, as the name implies, the stroke count on which the PLS outputs tied to
the counter are to become active for one stroke. The ACTIVE COUNT is the maximum value
that the counter will reach; in other words, as the press strokes the COUNT will increase until the
ACTIVE COUNT value is reached and on the next stroke the COUNT will start over at 1. To