The VFD Speed Graph shows the speed of the VFD over the past 20 minutes as a GREEN line on the graph. It shows 398 data points at second time intervals. The scale of the graph is 60 Hz with dashed scale lines every 12 Hz. A power loss will reset the graph.
The Fast Back button is used to move backward on the graph a page worth of data and can be used to move back quickly to a point in time.
The Backward button is used to move backward on the graph a single point of data.
The Forward button is used to move forward on the graph a single point of data. Obviously, the graph cannot move forward beyond the current data point.
The Fast Forward button is used to move forward on the graph a page worth of data and can be used to move back quickly to a point in time. Obviously, the graph cannot move forward beyond the current data point.
The Graph Return button is used to return to the current data point and resume the live data display.
The Reset buttons used to reset and clear the graph. The graph cannot be reset instantaneously. When the button is pressed, it will begin to blink. Once it is blinking, it must
Copyright © Clean Air America, Inc.
Weld Station User Manual, March 2011
Page 69 of 137
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