Ingersoll-Rand Intellisys System Controller Operators / Instruction Manual, Parts List page 18

SEQUENCE SET UP RULES:
1. Compressors are numbered 1 through 8 with no gaps in
the numbering. For example, if there are five compressors,
they must be connected to communication channels 1
through 5.
2. Sequences lettered A through H are used for both
Timed and Event modes. Sequence M is used only by the
Manual mode, and its set up is described in the Manual
mode portion of Section 4.2.5.
3. Any number of the eight sequences can be used. All of
them do not need to be entered.
4. Compressors can be entered in any sequence, in any
order.
5. The first compressor (number) entered in any sequence
will be the first one to load when air is needed. It is com-
monly refered to as the "lead" compressor. Loading of the
other compressors will follow in the order in which they are
entered in the sequence, from left to right.
6. The same compressor number can not be entered into a
given sequence more than once.
7. No compressor number larger than the quantity of com-
pressors entered in the Initial Set Up can be entered in
any sequence.
8. Leaving the first character position in any sequence
"blank" will indicate that sequence is not used.
Perform the following steps to enter or change sequences,
or use the Set Point Map (Figure 6.1) as a quick reference
of how to get to the SEQUENCE SET UP Set Points.
16
Step Action
1 While not in any Set Point routine, press
the SET button once and observe
"PRESSURE SET UP" in the display.
(NOTE: If you press SET more than once,
the display will cycle through the Pressure
Set Up Set Points. Continue pressing SET
and stop with the display showing
"PRESSURE SET UP").
2 Press the Right Arrow button twice, observe
"SEQUENCE SET UP" in the display, or
continue to press the Right Arrow button
until you do see it.
3 Press SET once, observe something like
"SEQ A 213".
(This is the place to enter the first se-
quence, "A". This example shows se-
quence "A" with compressor number 2 as
the "lead" compressor (first to load) follow-
ed by compressor 1 followed by com-
pressor 3. The display shows a cursor
under the compressor position that the ar
row buttons will affect. In the example, the
cursor position would be under 2).
4 Press the Up or Down Arrow button to cy-
cle the number to the compressor to be put
in the first position in the sequence.
(NOTE: When a position's compressor
number is changed, all compressor
numbers to the right will go blank).
5 Press the Right Arrow button once to step
the display cursor to the next compressor
number position to be entered.
6 Press the Up or Down Arrow button to cy-
cle the number to the compressor to be put
in this position in the sequence.
7 If there are more compressor numbers to
be entered in this sequence, repeat steps 5
and 6 above.
When there are no more compressor
positions to be entered in this sequence,
press the SET button to lock in the sequence,
and to step to the next sequence.
8 Repeat steps 4 through 7 to program all
desired sequences.
9 When all sequences are entered and con-
firmed correct, press the SEQUENCER
STATUS button to leave the Set Points and
return the display to normal operation.