Changing Auto to Manual mode VFD ABB, HVAC system alarm 2021

Removing the Start Enable signal (bypassing the auto mode) you can run the drive in Hand (manual).

[@Man-xn2fu]

Here's my personal scenario. Just in case there's anyone in these comments just trying to find any solution to this error message. I work at a school and there was a power surge. When I got to the building all my exhaust fan speed drives had this error. Turns out what happened was the fire alarm system had tripped which shuts off all the exhaust fans. Once I reset that all the 2021s cleared. I'm sure this won't help everyone, but I wish I had known this before I spent hours trying to figure this out.

[@EdgAdmRmz001]

Thank you very much for your comments, and it is also important to check the fire protection systems as you mentioned.

[@paolopa-bb2pb]

Do you have instruction for this alarm repair?

[@Ali_____Raza]

Bro you changed auto mode to hand and run vfd how

[@EdgAdmRmz001]

Hello, thanks for visit the channel On the video I describe how to change the parameter, If the drive is in Auto and you try just to press manual (hand), is not going to work

[@Sams-sr2yp]

I was more confused 😅😮

[@EdgAdmRmz001]

where ..

[@williamkuegler4119]

That was horrendous

[@ithuungachannel9189]

No clear video

[@EdgAdmRmz001]

let me try to post another video