Supervisor Keyboard; Main Display; Function Menu - Sullair LS20 Operator's Manual And Parts List

5.1 SUPERVISOR KEYBOARD LAYOUT
Refer to Figure 5-1. The Display module has eleven
keys grouped in two rows.
The top row has the following seven keys :
- Help key, used to display possible causes of
and correction for an alarm or fault.
- Returns to main display.
-Used to edit text or numbers (move cursor
left).
- Used to edit text or numbers (move cursor
right).
- Used to change numbers or text, or scroll.
- Used to change numbers or text, or scroll.
- Used to select an item from a menu, or start
and end an edit on a parameter.
The bottom row has four keys :
- Stop, stops machine. Clears faults and warn-
ings if machine is stopped.
- Run, starts machine. Clears warnings if
machine is running.
- Toggles auto mode.
-Toggles Local/Remote mode. This can be
used to disable sequencing.

5.2 MAIN DISPLAY

Line1 - Machine state :
E-Stop - E- Stop button pressed, or auxiliary e-
stop present.
Stopped - Machine not running.
Unloaded - Machine running unloaded.
Loaded - Machine running, loaded and modu-
lating.
Full Load - Machine forced to full load. (Used
only in sequencing modes).
Remote Stop - Compressor is off but armed to
start. The machine will start when the remote start
contact is closed. NOTE : the machine may start at
any time.
SUPERVISOR CONTROLLER
Seq Stop - Compressor is off but armed to start.
The machine will start when the sequencing condi-
tions meet the criteria to start. NOTE: the machine
may start at any time.
Line 2 - Fault or Warning, blank means no fault or
warning is present.
If there are multiple alarms, they will be shown for 2
seconds each. If an alarm is active, pressing the '?'
key will give troubleshooting information on that
alarm.
Line 3 - P2 - Line pressure
Line 4 - T1 - Discharge Temperature

5.3 FUNCTION MENU

While in the main display, if any of the arrow keys
are pressed, the function menu is displayed. This
menu is used to view status or edit parameters.
The function menu has the following entries :
Status - Current pressures, temperatures, inputs
and outputs.
Control Parameters - Pressure and temperature
and timer settings.
Maintenance - Preventive maintenance informa-
tion and timers.
Fault Log - Log of previous faults.
Sensor Log - Log of sensor readings leading up to
a fault.
Sequencing - Sequencing parameters.
System Display - Display of modes of machines in
a sequencing system.
Calibration - Correction factors for pressures.
Factory Setup - Model settings.
Test - Used by Sullair personnel for troubleshooting
serial communications.
To select a function, use the up and down arrow
keys to scroll to the desired function as indicated on
last line of display, then press the enter
After entering a function, the information can be
viewed by using the up and down arrow keys. If the
function shows status then values cannot be
changed. If the function displays parameters, then
the values can be changed.
To change a value, scroll to the line to be changed
using the up arrow and down arrow keys, and push
the enter button. The value can be changed by
using the up arrow or down arrow keys. When edit-
ing is finished, pushing the enter key will fix the
Section 5
key.
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