Issue:
My ATV930 series drive is detecting "DB unit sh. circuit" but I am not using a braking resistor.
Product Line:
ATV930
Environment:
All models, All serial numbers
Cause:
The drive does not have a braking module connected
Resolution:
If a braking module is not connected, the drive will show "DB unit sh. circuit" by default. It is necessary to disable this function on those ATV930 series drives that do not have a braking module connected.
Navigate from the main menu to [ Complete settings] - [Error/Warning handling] - [Braking Resistor monit] and change Braking Resistor monit parameter to Ignore.