Sullair 02250165-411 R01, User Manual

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WS CONTROLLER USER INTERFACE MANUAL SECTION 3
16
5. Press the START pad when running
or STOP pad when stopped to return
the display to the NORMAL view.
3.3 USER ADJUSTABLE
CONTROL PARAMETERS
Listed below are descriptions of the parameter that
can be adjusted at the WS Controller:
Unload Pressure - Set point (psi, bar, or kpa) at
which the system pressure will begin unloading. For
example if this parameter is set to 110 psi (7.6 bar)
the machine will unload when the line pressure is
above 110 psi (7.6 bar).
Load Delta Pressure - The pressure differential (psi,
bar, or kpa) below the unload pressure at which the
machine will begin loading. For example if the
unload pressure is set to 110 psi (7.6 bar) and the
load differential is set to 10 psid (0.7 bar), the
machine will load when the line pressure goes below
100 psi (6.9 bar).
VSD Setpoint Pressure - (VSD packages only) The
targeted pressure (psi, bar, or kpa) for the variable
speed controls. This is normally adjusted near the
bottom of the load/unload delta. The speed will be
adjusted to maintain this pressure. Refer to
Section
6 for additional details.
Unload Minutes - Set time that the machine will run
unloaded in Automatic mode before shutting off. If
the time is set less than 15 minutes (for example 5),
there may be times when the machine will run
unloaded for more than 15 minutes. This is because
there is another timer that keeps the machine from
being started more than four times an hour. This
secondary timer is disabled when a machine is
configured for VSD motor control.
Drain Interval Mins. - Set interval in minutes
between activation of the drain cycle for machines
equipped with an electric solenoid drain. This does
not apply to the Sullair SCD zero loss drain, which is
not controlled or monitored by the WS Controller.
Drain Time Seconds - Set time in seconds that the
drain remains energized.
Wye Delta Seconds - Set time for wye to delta
starter transition. Also used to control the closed
inlet start valve. Disable by setting to zero (0),
standard for full voltage start. Requires
approximately 4-6 seconds for wye-delta or solid
state starting.
Modulate - Manner in which the machine is set to
regulate compressor flow. Default state is “YES” for
proportional control. Select “NO” for Load/No Load
operation.
Operating Mode - The mode set for controlling the
compressor motor operation (Manual / Automatic).
Manual mode runs continuously. Automatic mode
refer to “Unload Minutes”.
Language - The choice of language for text that will
appear on the display screen (English, French,
Spanish, German, Italian, Chinese).
The Diagram of Figure 3-1 shows the flow of the
screens that appear on the WS Controller display
screen for a typical standard compressor package.
This diagram illustrates how adjustment parameters
are accessed.
NOTE
If during the adjustment process, the
START or STOP pad is
pressed prior to pressing the ENTER
pad, the display will return to the
NORMAL view and the parameter value
will not be changed.