Supervisor I Microcontroller Programming - Sullair LS-25S Operator's Manual And Parts List

Section 2
DESCRIPTION
Figure 2 ---7 Supervisor I Control Panel
the sump pressure at the various load and/or off---
load conditions.
S The discharge temperature probe (T1) moni-
tors the temperature of the air leaving the compres-
sor unit. For both air---cooled and water---cooled
compressors the normal reading is approximately
180_F (82_C) based on 80_F (27_C) ambient tem-
perature.
S The injection temperature probe (T2) monitors
the temperature of the fluid just before it is injected
into the unit.
S The air filter maintenance switch monitors the
condition of the air intake filter. When the Supervi-
sor displays the message "AIR FILTER MAINT
RQD ", f il ter s er v ic e is r equir ed ( s ee
S The ON/OFF pad turns the compressor on and
off.
S The hour display records cumulative hours of
operation for the compressor and is useful for plan-
ning and logging service operations. A selectable
display of "load" hours or "load" as a percent of
"run" hours is available by pressing "HR LOAD" or
"HR%" respectively.
S Separator differential pressure can be dis-
played by pressing the "∆P1" pad. When a differ-
14
ential of 10 psid (0.7 bar) is reached, the message
"SEPARATOR MAINT RQD" is displayed and the
∆P1 LED will flash.
S Oil filter differential pressure can be displayed
by pressing the "∆P2" pad. When a differential of
20 psid (1.4 bar) is reached, the message "OIL FIL-
TER MAINT RQD" will be displayed and the ∆P2
LED will flash.
S The "ON" LED indicates when the compressor is
running.
S The amber light on the control panel indicates
when power to the compressor is supplied.
S The green message display indicates the status
Figur e 2 --- 3 ) . of the compressor.
2.9 SUPERVISOR I MICROCONTROLLER
PROGRAMMING
Several display and operational functions are user
programmable from the Supervisor keypad. Re-
peatedly pressing the "PROG" pad will scroll the
message display through the various program-
mable parameters. The cursor pad (∆) is used to
change parameter values. A built---in timed delay
feature returns the message display to operation
mode after 5 seconds of inactivity.