Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
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
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
Why is the drive not following the 4-20mA signal wired into AI3+ on the VW3A3202 extended IO card?
Altivar ATV61 and ATV71
All ATV61 and ATV71 with VW3A3202 option board
Analog signal not working
AI3-/ AI3+ is a differential current input. You must jumper AI3- to the com terminal before wiring in your 0 to 20mA or 4 to 20mA signal.
Check ref 1 channel to see if its programmed for AI3.
Check resistance between AI3+ and com with no power applied to the drive you should measure 250 ohms.
Check the polarity between AI3+ and com make sure the signal is not inverted.