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How to set up plus + and minus - speeds on the Altivar 312 (and Altivar 31) drives

Issue:
How to set up plus and minus speeds on the Altivar 31/312 drives

Product Line:
ATV31 and ATV312

Environment:
All serial numbers for ATV31 and ATV312

Cause:
If using a momentary push button to increase/decrease speed

Resolution:
Set up the drive as follows:
Wire one side of the switch to the +24v terminal and the other side of the minus switch to a logic input (example LI5)
Wire one side of the switch to the +24v terminal and  the other side of the plus switch to a logic input (example LI6) 
Then program the drive as follows:
CTL menu
LAC set to 2 or 3
RFC Ref 2 switching set to Ch2 active
FR2 Ref 2 channel set to UPdt + and - speed control.
FUn menu
UPd + /- speeds
USP= + speed input for LI5 or you can choose your logic input assignment.
dSP= - speed input for LI6 or you can choose your logic input assignment.

 

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