OPERATING INSTRUCTIONS
55
SL, SM & SH 90, 110, 132, 150, 200, 250 &300 (50Hz)
L, H & HH 125, 150, 200, 250, 300, 350 & 400 (60Hz)
DISPLAY BUTTONS (8)
The functions of the three buttons below the display screen change
and are defined by the words immediately above them in the bottom line
of the screen. Each function, such as MAIN MENU, STATUS, etc., is
described in appropriate sections in this manual.
[ ] denotes alternative units for reference.
–CURRENT STATUS–
#
6,95
bar
[101]
[psi]
PACKAGE DISCHARGE TEMP
204
_
C [400
_
F]
RUNNING LOADED
1ST STAGE TEMPERATURE
MODE: ON/OFF LINE
215
_
C [419
_
F]
MAIN MENU
INTELLISYS MICROPROCESSOR
The
SIERRA
oil free compressor includes an
INTELLISYS
microprocessor based control module which provides for starting,
operating control, and safety control of the compressor package. For
communication purposes, the
INTELLISYS
controller offers a RS485
serial communication port.
The display screen is divided into three functional areas, as seen
in the typical CURRENT STATUS screen shown here.
The left side (area 1) continuously shows the package discharge
pressure in large numbers, with the line directly below the numbers
showing the running condition of the machine and the line below that
showing the present mode of operation.
The right side (area 2) shows various items or lists such as the
machine’s CURRENT STATUS readings, the MAIN MENU, the
OPERATOR SETPOINTS list, etc. Any of the lists can be moved up or
down by pressing the arrow buttons to the right of the screen. The small
arrow(s) displayed in the upper right corner of the screen indicate when
you can move up (designated by arrow head pointing up) and/or down
(designated by arrow head pointing down) through a list. The arrow
buttons are also used to change an individual item’s value. At certain
times, items and/or their values are “highlighted”. This means that they
are displayed as light characters on a dark background.
The bottom of the screen is divided into thirds with the words in each
small box showing the function of the button directly beneath it. The
words will change in these boxes depending on what actions are
permitted at any particular time. The action resulting from pressing
each of these buttons is indicated in the Operator Panel Flow Diagram
later in this section. This can be used as a quick reference of how to
step the controller screen through any desired function.
CURRENT STATUS
The CURRENT STATUS screen is considered to be the “normal”
display that the controller shows.
The following items and their present values can be displayed on the
right side of the screen by pressing the up and down arrow buttons.
CURRENT STATUS items
1st Stage Temperature
2nd Stage Inlet Press
2nd Stage Inlet Temp
2nd Stage Discharge Press
2nd Stage Discharge Temp
Inlet Vacuum
Oil Filter Pressure Drop
Bearing Oil Temperature
Bearing Oil Pressure
Total Hours
Loaded Hours
Package Discharge Pressure
Program Name
The controller automatically returns the display to this CURRENT
STATUS screen from other screens if no buttons are pressed within 30
seconds.
The MAIN MENU screen can be accessed from the CURRENT
STATUS screen by pressing the MAIN MENU button, identified by the
words “MAIN MENU” in the bottom line of the screen directly above the
centre button.
