Start here for access to our Knowledge Base to get answers to over one hundred thousand questions online in seconds.Find Answers
...See what we've been doing in some of our major markets.Find your Location
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
How to set up plus and minus speeds on the Altivar 31/312 drives
ATV31 and ATV312
All serial numbers for ATV31 and ATV312
If using a momentary push button to increase/decrease speed
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:
LAC set to 2 or 3
RFC Ref 2 switching set to Ch2 active
FR2 Ref 2 channel set to UPdt + and - speed control.
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.