Wiring And Piping; Machine Preparation Prior To Sequencing - Sullair SUPERVISOR CONTROLLER Instruction Manual

Section 2
SEQUENCING WITH
MULTIPLE CONTROLLERS
one machine.
(See ROTATE hours parameter setting for more information). Digital inputs for remote
control are disabled.
DO NOT enable the Rotate Hours mode when the above situation is NOT true.
Unexpected starts and stops may occur when manually starting or stopping a
machine in the sequence.
2.3

WIRING AND PIPING

Control signals are passed along a simple network cable, Belden 9842 or similar. This
cable has two twisted pairs with a shield. Twisted pairs usually have one color coded
wire twisted with a black or white wire.
For Supervisor Controllers, one twisted pair is connected to ISO+ and ISO- on the
Supervisor Comm module. Make sure that the color coded wire is connected at ISO+
and the white or black wire is connected at ISO-. Both wires of the other twisted pair
must be connected to ISO GND. The wire shield must be connected to ground at one
end only.
For Supervisor II Deluxe Controllers, the color coded wire is to be connected to J2-16
and the white or black wire to J2-17. Both wires of the other twisted pair are to be
connected to J2-18.
For WS Controllers, connections may be made to either J11 or J12. The color coded
wire is connected to PF 485+ and the white or black wire connects to PF 485-. Both wires
of the other twisted pair are to be connected to PF 485C.
For the most efficient operation in a sequential system, the P2 (line pressure) transducers
of all machines should be connected to a common header, down stream of individual
dryers, etc. Note that the dP1 (separator maintenance delta pressure) may need to be
calibrated to take into account the extra pressure drop of the down stream equipment.
Refer to Section 2.13
2.4

MACHINE PREPARATION PRIOR TO SEQUENCING

For each machine to be connected in the sequence:
1. Complete all machine startup procedures as required for stand-alone operation.
Refer to the specific compressor operator and controller manual for each machine.
2. Calibrate the P2 signal for all machines to read the same pressure at the common
header. Each controller must be calibrated to read the same P2 pressure (±1 psi) of
the common header psi.
If necessary, recalibrate the P2 signal for each controller in the system. Refer to
2.13 for procedure on pressure calibration.
3. Program each machine with a different COM ID number (i.e.1, 2, 3, etc.).
4. Set the following parameters the same for each machine (except for VSD
applications).
4
DO NOT enable this mode in systems with more than two machines
for steps on calibrating the system pressure readings.
Section