Ingersoll X12I, Быстрая настройка, Страница: 24 / 34

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1
Compressor Connectivity:
ir-PCB Fixed speed, load/unload; connected to x8I OR
x12I using ‘ir-PCB’ module using 6-wire method.
(0/100%) 0% or 100% regulation
irV-PCB variable Speed; connected to x8I OR x12I using
‘ir-PCB’ module using the 7-wire ‘v’ terminal method.
(variable speed regulation)
ir-485
Fixed speed, load/unload; connected to x8I OR
x12I on RS485 network.
(0/100%) 0% or 100% regulation
IrV-485
variable Capacity/Speed; connected to x8I OR
x12I on RS485 network.
(0 . . 100%) variable %Load regulation
2
Compressor Start Sequence Time:
Set to match the time that the compressor takes to
start its main motor and load. This time will typically be
equivalent to the compressors ‘Star/Delta’ time.
If unknown, the time can be established by experiment;
manually start the compressor, from a stopped condition,
and determine the time from pressing the start button
until the compressor loads and contributes capacity
output to the system.
This time is used by the unit for ‘staggered starting’ of
multiple compressors and other operational calculations.
An accurate time is important for successful unit
operation.
3
Compressor Run-On Stop Time:
This setting is only applicable to ‘irv-PCB’
connectivity and is not displayed for other connectivity
options.
The time that the compressor main motor will continue to
run when the compressor is offload (main motor run-on-
time).
If unknown, the time can be established by experiment;
start and load the compressor then arrange a condition
that will unload the compressor for a period of time.
Determine the time from the moment the compressor
unloads until the main motor stops and the compressor
enters a ‘Standby’ or ‘Auto Restart’ condition.
This time is used by the x8I or x12I for accurate
recording of ‘run hours’ (EHR mode), operational
calculations and other data recording applications. An
accurate time is important for successful x8I or x12I
operation.
4
ir-PCb Alarm (Warning) Input:
Only applicable for ir-PCB connectivity. Not shown
for ‘485’ network types.
For ‘ir-PCB’ connectivity applications the voltage
detection function for the ‘ir-PCB’ Alarm (Warning) input
can be inverted.
+V=!
An Alarm (Warning) condition is generated if
the ‘ir-PCB’ Alarm input detects a voltage between 12-
250vac/dc (default).
0V=!
An Alarm (Warning) condition is generated if the
‘ir-PCB’ Alarm input detects no voltage.
5
% Maximum Output Capacity
The maximum output capacity of each compressor must
be set as a percentage with reference to the highest
output capacity (the largest) compressor in the system.
The highest output capacity compressor must be
assigned with 100% capacity. Equal capacity (equal sized)
compressors should be assigned the same % capacity
value. Calculate the output capacity of compressor(s) that
are smaller than the largest in the system as a percentage
of the largest in the system.
for example:
Compressor 1 700 cfm 100%
Compressor 2
700 cfm 100%
Compressor 3 420 cfm 60%
Compressor 4 420 cfm 60 %
Compressor 5 350 cfm 50%
Compressor 6
175 cfm 25%