W ELD S TATION HMI F EATURES
S OFT S TART
The of a Variable Frequency Drive (VFD) allows the motor ramp up to speed rather than across the line starting contactors. This eliminates starting amperage spikes as well as inertial effects of the blower. In non-VFD systems, these spikes can be as high as eight times the full load amps.
P RESSURE T RACKING
The Variable Frequency Drive (VFD) inside the control panel allows the Weld Station to track the usage of the filters. This allows the unit to automatically increase the speed of the motor to compensate for the additional air restrictions caused from dirty filters. This features is an automatic feature and cannot be disabled.
This feature alone can save up to 55% of the energy costs over the life of the filters.
R EDUCED M AINTENANCE
The Weld Station HMI based system uses the Variable Frequency Drive (VFD) to manage the motor's operating speed. This in turn controls the airflow inside the unit and allows for more efficient operation through the Pressure Tracking feature. This reduces the impaction of dust upon the filters inside the unit and allows. The reduced impaction means the dust can be cleaned easier and every cleaning cycle is more efficient.
This feature can increase the life of the filter by up to 100% which reduces maintenance time and costs.
Copyright © Clean Air America, Inc.
Weld Station User Manual, March 2011
Page 55 of 137
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