Operating The Compressor - Sullair ES-8 Operator's Manual And Parts List

Section 7
COMPRESSOR OPERATION
Protocol Manual (See Recommended
Spare Parts List) for details about these
modes.
SEQUENCE
S Drain interval --- The time between actua-
tion of the drain valve.
DRN INTV
S Drain time --- The amount of time that the
drain valve is actuated.
DRN TIM
S Last Communication Number --- Used
only for sequencing. See Sequencing &
Protocol Manual for details.
LAST COM
S Lowest Allowable Pressure --- Used only
for sequencing. See Sequencing & Proto-
col Manual for details.
LOWEST
S Recovery Time --- Used only for sequenc-
ing. See Sequencing & Protocol Manual
for details.
RECOVER
SRotate Time --- Used only for sequencing.
See Sequencing & Protocol Manual for de-
tails.
ROTATE
S Machine Capacity --- Used only for se-
quencing. See Sequencing & Protocol
Manual for details.
CAPACITY
S Sequence Hours --- Used only for se-
quencing. See Sequencing & Protocol
26
HOURS
10 MIN
1 SEC
3
90 PSI
10 SEC
50
100
Manual for details.
SEQ HRS
1000

7.4 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. Press-
ing 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 al-
ready running in manual mode will cause the Su-
pervisor II to turn off the common fault relay, if en-
gaged, 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. Re-
gardless of what the compressor is doing, pressing
"O" puts the Supervisor II 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
status will indicate STANDBY and the LED marked
AUTO will flash.
If the compressor is already running, but in continu-
ous mode, pressing "
automatic. Pressing "
automatic mode will cause the Supervisor II 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 Supervisor II in
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:
P2 > UNLD -- -- > load solenoid turned off
P2 < LOAD -- -- > load solenoid turned on
POWER FAILURE RESTART
If the restart timer (RST TIME parameter) is dis-
abled the compressor will not try to start after a
power up. If this time is set to a value, the machine
will go into standby after power up. When the line
pressure drops below the load setpoint, the restart
" will switch operation to
" while already running in