Ingersoll-Rand 100-200 HP/75-160 KW - Manual (Page 27)

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1 0 0
P S I
-INTEGRAL SEQUENCING-
Lead Compressor
Off
Total Compressors
2
3.10 INTEGRAL SEQUENCING
Integral Sequencing is set up using the INTEGRAL
SEQUENCING screen. A description of integral is in
section 7.0. The name and value of each of the
integral sequencing setpoints as listed in the right
hand column can be seen by moving the list up and
down using the arrow buttons.
3.10.1 Lead Compressor- The choices for this
setpoint are On, Off, Always, and Never. On, means
the compressor is the lead unit. Off, means the
compressor is not the lead unit, but it could become
the lead unit. If Always is selected, the compressor is
the lead unit and it will not transfer the lead to another
compressor. Never, means the compressor is not the
lead unit and will never become the lead unit. The
operator must set one unit (and only one) to On or
Always to start integral sequencing.
3.10.2 Total Compressors- This is the total number of
compressors in the integral sequence. This setpoint
must be set to the same number on each compressor.
3.10.3 Compressor Address- This is the address of
the compressor in the integral sequence. No two
compressors can have the same address. Two
compressors with the same address will cause
communication failures.
3.10.4 Load Delay Time- This is the number of
seconds the lead compressor will wait for the package
discharge pressure to start rising after issuing a load
command to another compressor. If the package
discharge pressure has not started rising at the end of
this time period, the lead compressor will load the next
compressor in the sequencer.
3.10.5 Lead Change - Hours- This is the number of
hours the compressor will operate as the lead unit.
Once a compressor has operated as the lead for this
number of hours, it will transfer the lead to the next
compressor in the sequence. This setpoint does not
apply to a unit where the lead compressor is set to
always or never. If this setpoint is set to 0, the next 2
setpoints will determine when the lead is transferred.
3.10.6 Lead Change - Day & Lead Change - Time-
These two setpoints are used together. If the Lead
Change - Hours setpoint is set to 0, these two
setpoints will be used to determine when the
compressor will transfer the lead to the next
compressor in sequence. Lead Change - Day is the
day of the week that the compressor will transfer the
lead. Lead Change - Time is the time of the day that
the compressor will transfer the lead.
STATUS MAIN MENU SELECT
Ready To Start
INTEGRAL SEQUENCING RANGE STEP UNIT
Lead Compressor On/Off/Always/Never --- ---
Total Compressors 2 to 4 1 ---
Compressor Address 1 to Total Compressors 1 ---
Load Delay Time 10 to 60 1 SEC
Lead Change - Hours 0 to 750 1 HRS
Lead Change - Day Sun to Sat, Daily, Week 1 DAY
Day, Week End
Lead Change - Time 00:00 to 23:59 1 TIME