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What would cause the ATV61 drive not to ramp below 55.5hz with a low speed of 44hz?

Issue:
What would cause the ATV61 drive not to ramp below 55.5hz with a low speed of 44hz?

Product Line:
ATV61 and ATV71

Environment:
All 

Cause:
Speed reference is calling for the drive to run at 55.5 hz. 

Resolution:
LSP was 44hz HSP was 60hz 
AI2 is the speed signal  min 4mA max 20mA
Menu 1.2 is showing AI2 as 15.5mA

freq ref is 55.5 hz and the drive is running at 55.5 hz.. Drive is normal at this time. 
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