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Figure 77: p1 Pressure Band
Note that there is a certain limit that can be set for each of the pressure values. For example, the
Target
pressure
minimum is 100 psi which is the
Load Pressure
Value. If you want to set the
Target pressure
below 100 psi then the
Load
pressure needs to changed first and it should be set lower than the
Target
pressure
.
Similarly, the upper limit, max is 116 psi which is close to the
Unload pressure
. If you want the
Target
pressure
greater than 116 psi then the
Unload
pressure
needs to change first and its value should be
greater than the desired
Load Pressure
.
The same methodology will be followed for setting the
Unload
and
Warn
pressure values.
We can toggle between the primary pressure and secondary pressure screen with the button available on
the bottom of the
Pressure Band Setting
screen. The
p1 Pressure Band
screen has a button called
View
p2
to jump to
p2 pressure band
screen.
4.2.3 p2 Pressure Band
The
p2 Pressure Band
defines alternative pressure set points that can be activated by a timer or control
input. This band can be used for when the compressor is operating at off-hours or during the weekend
when production is not functioning at full output and therefore does not have the same pressure
requirements.
Similar to the primary pressure band settings, it has five parameters:
Load, Target, Unload, Warn,
and
Fault
. Any of these values can be changed by selecting the input boxes. A sample screen of
p2
is shown
in Figure 78 below. The warning and fault setting on the
p2
screen is the same set point as the set points
on the
p1
pressure band
settings screen.