Section 6
SUPERVISOR II
21
6.1 INTRODUCTION
Refer t o Figure 6 --- 1. The Supervisor II has a tw o
linedisplaytoshowt emperature,pressureandsta-
tus. It has a keypad for operating the compressor,
programming the control points and selecting dis-
plays. There is agraphicillustrationwith lamps that
light to show the item being displayed. The lamps
flash if t hat component is in an alarm condition.
6.2 KEYPAD
Thekeypadisusedtocontrolthemachineaswell
as display status and change setpoints. Refer t o
figure 6 --- 1 for follow ing k ey des cript ion s .
S Stop --- Used to put the machine into
manual stop. It is also used to clear alarm
conditions.
O
S Continuous --- Starts machine if no alarm
conditions are present. Also used to clear
alarmconditionswhilemachineisrunning.
I
S Auto --- Starts machine and selects auto
mode if no alarm conditions are present.
Also used to clear alarm conditions while
machine is running.
S Display --- Used to display pressures,
temperatures and other status information
(SeesectiononSTATUSDISPLAYS).
DISPLY
S Logo --- Used for various functions de-
scribed in later sections.
S Program --- Used to enter theparameter
change mode where control parameters
may be displayed and changed (See PA -
RAMETER SETUP).
PROG
S Up arrow --- Used in status displays to
change displays and in parameter setup
mode to increment a value.
S Down arrow, lamp test --- Used in status
displays to change displaysand inparam-
eter setup mode to increment a value.
Wheninthedefaultdisplaythekeywilllight
all the lamps for three seconds.
6.3 STATUS DISPLAYS
By default the line pressure (P2) and discharge
temperature(T1)areshownonthebottomlineof
the display, and machine status on the top line.
The following are the various machine status mes -
sagesthatindicatethestateofthecompressorwith
LCD graphics listed below:
S STOP --- Compressor is off.
SSTANDBY --- Compressor isoffbutarmed
tostart.Thisstatemaybeenteredbecause
of a power up, or the unload timer had ex-
pired and stopped the machine. NOTE :
The machine may start at any time.
S STARTING --- Machine is trying to start.
S OFF LOAD --- Machine is running and off
loaded.
S ON LOAD --- Machine is running and
loaded.
S FULL LD --- Machine is running and fully
loaded. This state is only displayed if the
machine has a full load valve.
S RMT STOP --- Compressor is off but
armedtostart. The machinewillstartwhen
theremotestartcontactisclosed.NOTE:
the machine may start at any t ime.
SSEQSTOP --- Compressorisoffbutarmed
tostart.Themachinewillstartwhenthese -
quencing conditions meet the criteria to
start. NOTE: themachine maystart atany
time.
This default display appears as follows:
STOP
110 180
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