Doc #: L-2600-1023 Page 45 Rev. 02
The “Channel Mode” of the channel sets the basic characteristics of how it will operate. The following
channel modes may be selected:
Always Off The Limit Switch output relay for the channel will always be turned off. While the
typical use for this mode if for a channel that is not used for a particular job, note that it
can also be useful in conjunction with the “Always On” mode for turning off and on
optional automation equipment, such as conveyors, that are not used for every job.
Always On The Limit Switch output relay for the channel will always be turned on (as long as the
control is powered and the Limit Switch relay board is operating properly).
Normal The Limit Switch output relay will turn on at a particular angle and off at another angle.
Timed Off The Limit Switch output relay will turn on at a particular angle and will remain on for a
programmable “On Time”. This type is especially useful for applications like air blow
off or for sprays of lubrication for the material. While the “Normal” mode can be made
to work for such applications, it has the disadvantage that if the press stops inside the
“On” window, the air or lube will spray continuously until the press is moved.
Toggle The Limit Switch output relay will turn toggle (turn off if it is currently on and on if it is
currently off) at a particular angle. This is mostly used in conjunction with counted
outputs so that the limit switch changes every so many strokes. For instance, this could
be used to divert parts from one output bin to another every 1500 strokes. The press can
continue production while the bin that was just switched away from is changed out with
an empty bin.
The “Channel Description” can be selected from a set of names that have previously been entered by the
user (see Section 4.7 on page 61 for details).
When the channel is in “Normal”, “Timed Off”, or “Toggle” mode, it can be made a “Counted Output”.
This allows the channel to be set to fire every so many strokes. Press inside the blue bordered counted
outputs area (see “a” in Figure 33) and the counted outputs setting screen will be shown (see Section
3.4.3).
When the channel is in “Normal”, “Timed Off”, or “Toggle” mode, there are angle and/or time settings
associated with it. Press inside the blue bordered angle area (see “b” in Figure 33) and the angle/time
settings screen will be shown (see Section 3.4.4).
When the channel is in “Normal”, “Timed Off”, or “Toggle” mode, the channel can be speed advanced.
Press inside the blue bordered angle area (see “c” in Figure 33) and the speed advance settings screen
will be shown (see Section ).
NOTE: Timed Off channels can “re-trigger”. If the next “On” angle is reached
before the time has expired, the output will remain on and the time period
starts over. This is typically used to provide a timed pulse at low speeds, but
a continuous output at high speeds, or to power scrap conveyors that turn on
when the press starts and automatically turn off a few seconds after the press
stops.
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