System Display- Display Of Modes Of Machines In A Sequencing System; Calibration- Correction Factors For Pressures; Factory Setup- Model Settings - Sullair LS20 Operator's Manual And Parts List

Section 5
SUPERVISOR CONTROLLER
over 'Low Press').
Rotate - This parameter is used only in very special
cases.
Leave this parameter disabled unless instructed
by Sullair Service Personnel.
The only time this parameter should be used is in a
situation where, once a machine is started, it never
stops (ie. the unload timer never expires). This can
happen when the load matches the output of the
machine, all the time. In this case the machine will
never unload and shut off. The rotate forces the
machine to stop after it's Seq Hrs. are greater that
the other machines. For example in a two machine
system, with Rotate set at 100 hrs. The machine
that is running will shut off when the Seq Hrs. are
100 more that the machine that is stopped.
Minute, Hour, Day,
Communications Module is present in the system,
the time and date can be set using these parame-
ters.
5.8 SYSTEM DISPLAY - DISPLAY OF MODES OF
MACHINES IN A SEQUENCING SYSTEM
Note that this display is only applicable when there
are two or more machines connected to the com-
munications network (RS-485) and the Sequence
By parameters on each machine are set to 'Hours'
or 'Number'.
The columns are described below
Communication Number
Status -
E - Emergency Stop
M - Manual stop
R - Remote stop
B - Standby
S - Starting
U - Unloaded
L - Loaded
T - Trim machine
F - Full load
Sequencing Hours
Capacity - Not used at this time.
Local System Pressure - Pressure read by
machines pressure transducer.
The top line is a legend that describes each column.
The right hand number on the top line is the system
pressure. The system pressure is the highest pres-
sure reading of all the machines. Note that the local
pressure readings can be used to determine what
machines may need to be calibrated. The system
26
Month, Year- If the
pressure transducers on all machines should read
within 1(one) psi of one another. The calibration
function can be used to set the readings to be the
same.
5.9 CALIBRATION - CORRECTION FACTORS FOR
PRESSURES
The first line of this display is the password. If the
password is 0 then the following parameters are not
protected and can be changed. If the password is
non-zero, then enter the displayed number plus 4 to
enable changing the parameters. For example if the
number displayed is 10 then changing the password
to 14 will enable editing.
The four pressures P1, P2, P3 & P4 as well as the
differential pressure dP1 can be calibrated. The
number on the right hand side of the line is added
to the transducer reading to give the calibrated
reading. The calibrated reading is shown in the mid-
dle of the line.
There are also three other parameters in the cali-
bration function :
Protect - When set to yes, protects the control
parameters from change.
Fault on Warn - Force fault on warning.
Force Unload - When set to yes, forces the
machine to unload.

5.10 FACTORY SETUP- Model settings.

The factory setup display is used by Sullair person-
nel to initially set up the machine. The following val-
ues reflect the machine configuration.
Model - Model number of machine.
Cooling - Air or Water.
Press Trans - Pressure transducer range 0-250.
P1 Max - Maximum discharge pressure.
Water Switch - Water pressure switch, Yes or No.
Oil Switch - Oil pressure differential switch, Yes or
No.
Min Load Psi - Minimum acceptable load P1 pres-
sure setting. Separator Maintenance warning is dis-
abled for loaded P1 pressures below this value (i.e.,
during start-up).
K8 Option - K8 output relay function selector -
Disabled, Oil pump prelube and postlube control,
Master Control for special external sequence con-
trol.
Stop Timer - Time to run machine before stopping.
Protect - Protect control parameters.
Load Hours - Hours machine was running and