Pressure Detection And Control - Ingersoll Rand X8I Manual De Utilización

Remote Compressor Management; EX Box (option)
The EX Box is an 'EXtension' to the X8I providing
additional 'ir-PCB' connectivity.
The EX Box will typically be used to provide 'ir-PCB'
connectivity at a remote location beyond the maximum
distance specification of compressors that require 'ir-PCB'
type connection; 330ft (100m). This effectively expands
the hardwire connection scheme of the 'ir-PCB" to the full
RS485 distance specification.
The EX box is suitable for wall mounting and can be
located up to 4000ft (1219m) from the X8I unit.
4000ft (1219m) max
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8 5
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The EX Box connects to the X8I controller via a two wire,
RS485 network utilizing the IR485 protocol
Use Belden 9841 or Equivalent In Grounded Conduit
No Greater Than 4000ft (1219m)
One (1) or two (2) air compressors can be connected
to the EX Box using a 6-wire cable and a compressor
interface ir-PCB (330ft (100m) max). The 'ir-PCB'
connections are identical to the X8I.
The EX Box also provides optional 'local pressure sensor'
connections. The compressor delivery pressure, local
system pressure and air treatment differential pressure
can be displayed.
Multiple EX Boxes can be connected to the X8I as long
as the number of compressors does not exceed the
maximum number of compressors (8).
Bolt-On VSD Control Integration: VSD Box (optional)
The VSD Box is intended to provide a method of
system integration for a VSD (Variable Speed Drive) air
compressor that is not equipped with any accessible
means of remote connectivity (such as IR- Nirvana). The
VSD Box will provide required functionality to enable
system integration and efficient control using the X8I
automation system.
ir-PCB
From VSD Pressure Transducer
To VSD Pressure Transducer Input
30ft
max
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8 5
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The VSD Box connects to the X8I controller via a two wire,
RS485 network utilizing the ir485 protocol
Each air compressor in a system, that requires VSD Box
integration, must be equipped with an individual VSD
Box. Multiple VSD Boxes can be connected to the X8I as
long as the number of compressors does not exceed the
maximum number of compressors (8).
Remote Input & Output: I/O Box (option)
An I/O Box provides additional general purpose I/O
(input/output) for a system enhancing monitoring
capabilities and providing distributed system automation.
Up to two I/O Boxes can be connected to the X8I
controller. Each I/O Box features:
8 Digital Inputs
5 Analog Inputs
6 Relay Outputs
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8 5
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The I/O Box connects to the X8I controller via a two wire,
RS485 network utilizing the ir485 protocol
Digital inputs can be used to monitor switching contact
devices. Each input can be set to act as an Alarm or
High Level Alarm input. Digital inputs can also be used
for metering (for example m3, ft3, kWh) providing an
accumulative count of pulses from a metering device.
Analog inputs can be used to monitor sensor devices (for
example: pressure differential, temperature, dewpoint,
flow, current, power, bearing condition). Each input is
equipped with adjustable high or low level detection that
can be used to activate an Alarm or High Level Alarm.
Relay outputs use 'Virtual Relay Automation' technology
and are totally configurable with duel input logic
functions. Relay functions can be assigned utilizing any
status or condition information available on a system
network from any compatible unit connected to the
network.

PRESSURE DETECTION AND CONTROL

The X8I utilizes the signal from a 4-20 ma pressure sensor
that is mounted remotely from the X8I in a suitable
location in the compressed air system.
The factory default settings for the pressure sensor is
0–232 PSI (16 bar), but the X8I can accept any pressure
sensor with a 4–20 ma output and a range of up to 8700
PSI (600 bar).
6
4000ft (1219) max