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ATV600 and ATV900 - Trips on Overspeed (SOF), measures very low output voltage, even at 60hz

Issue:  
Overspeed Fault (SOF) on Process Drive

Product Line: 
ATV600, ATV900

Environment
Programming changes

Cause:  
Programming change required

Resolution:  
Need to program as follows or you will get Overspeed Fault and Measure very low voltage on the output of the drive, even at 60hz

 How to run Process Drives with a Small or No Motor
1 - Set nPC (Motor Param Choice) to CoS 
2 - Set Ctt to V/F Quad
3 - Set OPL to NO
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