Home Forums General Discussion Technical Questions OTIS Regen Drive Change

And you did enter all parameters from the documentation on site?

I suspect that the new drive board has a newer software uploaded.
If that is the case, you might have some parameters in the setup documentation that you dont have any data for.

Error 726 has something to do with UCM-EN and communications between control board and Drive.
What is the parameter "Interface Type" in Setup/Contract M3-1 set to? 1 = if you have a GECB Board (CAN).

You can check the "UCM-EN on/off" parameter in Setup/Contract M3-1. Change it between 0/1.