Section 6
SUPERVISOR
38
• Sequence method - This parameter sets the
method used for sequencing. The choices are DIS-
ABLED, REMOTE, SLAVE, HOURS, COM ID#.
See the Sequencing & Protocol Manual (P/N
02250057-696) for details about these modes.
• Drain interval - The time between actuation of the
drain valve.
• Drain time - The amount of time that the drain
valve is actuated.
• Last Communication Number - Used only for
sequencing, see Sequencing & Protocol Manual for
details.
• Lowest Allowable Pressure - Used only for se-
quencing, see Sequencing & Protocol Manual for
details.
• Recovery Time - Used only for sequencing, see
Sequencing & Protocol Manual for details.
• Rotate Time - Used only for sequencing, see
Sequencing & Protocol Manual for details.
• Machine Capacity - Used only for sequencing,
see Sequencing & Protocol Manual for details.
• Sequence Hours - Used only for sequencing, see
Sequencing & Protocol Manual for details.
6.6 OPERATING THE COMPRESSOR
Before operating the compressor the operating pa-
rameters must be setup. See the previous section
on operating parameter setup.
MANUAL OPERATION MODE
In this mode the compressor will run indefinitely, as
long as temperatures and pressure remain within
the valid operating ranges, and the motor overload
or emergency stop contacts are not tripped.
Pressing the “I” will turn on the compressor and put
it in manual mode. If the compressor is already run-
ning, but in automatic mode, pressing “I” will switch
operation to manual. Pressing “I” while already run-
ning in manual mode will cause the Supervisor to
turn off the common fault relay, if engaged, and
clear any maintenance indicators.
To stop the compressor, press “O”. If the compres-
sor is already off when “O” is pressed, the common
fault relay will be turned off, if engaged, and it will
try to clear the alarm and maintenance indicators.
Regardless of what the compressor is doing, press-
ing “O” puts the Supervisor in manual stop mode.
AUTOMATIC OPERATION MODE
In this mode the compressor will start if line pres-
sure (P2) is less than the LOAD parameter. It will
stop if the compressor runs unloaded for the num-
ber of minutes indicated by the UNLD TIM parame-
ter. To put the compressor in automatic mode press
“ ”. If P2 is already less than LOAD the compres-
sor will start immediately, otherwise the system sta-
tus will indicate STANDBY and the LED marked
AUTO will flash.
If the compressor is already running, but in contin-
uous mode, pressing “ ” will switch operation to
automatic. Pressing “ ” while already running in
automatic mode will cause the Supervisor to turn off
the common fault relay, if engaged, and clear any
maintenance indicators.
In automatic mode the compressor can be stopped
manually by pressing “O”. Stopping the compressor
using “O” will put the Supervisorin manual stop
mode.
Regardless of whether in “automatic” or “manual”
mode, control of the load solenoid will be based on
the parameters UNLD and LOAD. This operation is
as follows:
SEQ HRS
1000
CAPACITY
100
ROTATE
50
RECOVER
10 SEC
LOWEST
90 PSI
LAST COM
3
DRN TIM
1 SEC
DRN INTV
10 MIN
SEQUENCE
HOURS
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