LINK Systems System 2500 PLS User Manual
Page 40
System 2500 Operating & Installation Manual - Revision 07
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an event is expected to occur on a die protection input. The timing channels are internal only;
that is, there are no relay outputs associated with these channels that will turn on or off.
By choosing TIMING CHANLS from the Die-Prot Menu, the operator will be able to view or
edit the timing channel information. The Timing Menu offers these options:
C
SETPOINTS - Allows operator to view or edit the on/off setpoints of each timing
channel.
C
VIEW STATUS - Displays the on/off status of each timing channel at the present
crankshaft angle.
2.8.3.1 SETPOINTS (for Timing Channels)
If the SETPOINTS option is chosen the operator will then be asked to enter the number of the
timing channel to be viewed or edited. Timing channels are numbered 17 through 24. Once a
channel has been chosen, the on and off setpoints for this channel will be displayed. If no
setpoints have been programmed, a message will be displayed indicating this fact. Pressing the
up or down arrow keys will cause a lower or higher timing channel to be displayed.
When the mode selector keyswitch is in the PROG position, the timing channel information can
be edited. If no setpoints have been programmed for a particular channel, new setpoints can be
added. If an on/off pair of setpoints has already been programmed, the setpoints can be edited or
erased if required. The procedures for adding, editing, or erasing setpoints are the same as the
procedures for PLS setpoints found in Sections 2.4.1.1, 2.4.1.2, and 2.4.1.3 except for certain
exceptions. These exceptions are:
1.
Only one on/off pair of setpoints is allowed on each timing channel.
2.
Timed outputs are not available on timing channels.
3.
Speed advanced setpoints are not available.
4.
Timing channels cannot be restricted.
5.
Setpoints on timing channels cannot be changed using the INCREMENT mode.
Each timing channel can provide the timing window for any or all of the die protection inputs.
For example, channel #18 might provide timing information for die protection inputs #27 and
#30, where both inputs are programmed to perform a cyclic mode function. Alternately, each die
protection input could have its own timing channel since there are eight of each. This provides
greater flexibility for the operator.