Isc Communication Wiring; Power On Confirmation; Pressure Transducer Calibration - Ingersoll-Rand Intellisys System Controller Operators / Instruction Manual, Parts List

3.5 ISC COMMUNICATION WIRING

1. The ISC is connected to each compressor using the
telephone type wire supplied in the ISC kit. Cut appropri-
ate lengths for each compressor and route the wires in
grounded electrical conduit. These wires should be the
only wires in the conduit(s).
2. Install one modular plug (supplied in the kit, along with
a special tool) on each end of each wire, one end in the
compressor and one in the ISC enclosure. Refer to
Figure 6.7 and 6.8 for instructions on the tool, and for
proper wire color codes and pin numbers. Be careful to
match color codes and pin numbers.
3. Plug the compressor end of each wire into the com-
munication port on the compressor's Intellisys panel or
Intellisys circuit board, whichever is appropriate.
4. Plug the ISC end of each wire into the communication
port on top of the ISC controller that corresponds to the
channel number you choose for each compressor.
Compressors must be connected to ports in consecutive
order, starting with port number 1. For example, if there
are five compressors, they must be plugged into ports 1
through 5, with no unused ports between the first and
the last.
5. Write the compressor model number and capacity,
corresponding to each chosen channel/compressor num-
ber, into Figure 6.2 at the back of this manual.

3.6 POWER ON CONFIRMATION

1. After all physical installation and wiring is complete,
apply power to the ISC and confirm the "Power" LED is
on.
If problems are encountered with any part of the ISC
operation, refer to the Trouble Shooting Chart,
Section 5.0.
2. The display will read "INITIALIZING" while the ISC
automatically goes through its internal initialization logic
which checks the pressure transducer and retrieves
compressor status information.
3. Confirm the display reads "READY TO START" follow-
ing the initializing operation.
4. If necessary, adjust the display contrast using the
adjustment screw located at the top left surface of the
controller when viewed from the back.
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3.7 PRESSURE TRANSDUCER CALIBRATION

This should always be done after first installing the ISC,
or after servicing the ISC or pressure transducer.
1. Vent the transducer to atmospheric pressure by clos-
ing the isolation valve and opening the dripleg valve.
2. With the ISC stopped and the display showing
"READY TO START", press the Up and Down Arrow
keys simultaneously to start the ISC's autocalibrate rou-
tine. The display will show the message "CALIBRATING"
while calibration is taking place. When calibration is suc-
cessful, the display will return to "READY TO START". If
calibration is unsuccessful, the display will show "CALI-
BRATION FAIL". If this occurs, refer to Trouble Shooting
Chart, Section 5.0.
3. Return the transducer to system air pressure .
The ISC is now ready for entering the Set Points that
configure it for specific air system requirements. Proceed
to Section 4.2 "Setting Up The ISC", and follow the
instructions there.