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3.9 Operating the Compressor
The compressor is now ready to operate. This section gives a basic overview of how to operate the
machine.
3
.
9.1 Starting
From the home screen, the Message Status Bar
should display “Ready to Start” as shown in Figure 60.
Figure 60: Home Screen Ready to Start
Press the
Start
button
on the display directly below the screen. If the delivery pressure is below the
load pressure setting, the compressor will start and accelerate the motor, then open the inlet valve and
begin building pressure. If this is the first time that the compressor has been started, make sure that all
systems are working properly (refer to the machine service manual for more information).
3
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9.2 Running
When running under the Automatic Operating Mode and control settings, compressor operation will
continue as described below:
The controller will attempt to keep the pressure within the set pressure band.
If the machine is a variable speed system, the motor speed will be adjusted to attempt to keep the
delivery pressure at the target pressure setting.
If the delivery pressure exceeds the unload pressure setting, the controller will close the inlet valve
and the Status Message Bar will display information about the new running state.
If the pressure remains above the load pressure with the inlet valve closed for a set amount of time
based on the machine design, the controller will stop the motor until the delivery pressure falls
back below the Load pressure. While in this state, the Status Message Bar will indicate that the
machine is enabled and will start when the pressure requirement is met as shown in Figure 61.