Wire polarity is important.
Pressure Sensor Wiring and Location
IRPCB INTERFACE MODULE
The ir-PCB is designed to interface a compressor with
the X8I using a seven (7)-conductor shielded cable or
individual wires run through grounded conduit no
greater than 330 feet (100 meters) in length.
Each compressor in the system must be assigned a
unique identification number from 1 up to the number
of compressors in the system. The identification number
should be clearly indicated on each compressor for
operational reference.
For each compressor utilizing an ir-PCB, connection to
the X8I the signal wires must be made to the correct
X8I terminals for that compressor number. Compressor
1 should be wired to terminal X01 on the terminal PCB,
Compressor 2 should be wired to terminal X02 on the
terminal PCB, etc.
ir-PCB Interface Module
The ir-PCB is a DIN rail mountable module designed to be
installed within the compressor starter enclosure.
Each air compressor must be equipped with a load/
unload regulation system and, if not regulated with a
single electro-mechanical pressure switch, have a facility
for a remote load/unload control with the ability to
accept a volt-free switching contact input for remote
load/unload. Each air compressor must have Auto Restart
capability.
The ir-PCB accepts a 12V to 250V input voltage detection
system and utilizes universal relay contact control outputs
(250V “CE” / 115V “UL” @ 5A maximum) integrated directly
into the circuits of an air compressor. The ir-PCB avoids
the need for additional relays or remote inputs. The ir-PCB
also acts as an electrical barrier between the compressor
and the X8I providing protection and voltage isolation.
Consult the X8I Interconnect and Application Guide
prior to the installation of the X8I and the ir-PCB to the air
compressor.
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