This manual introduces the safety instructions and notes for ABB Direct N2 Bus Interface
This guide provides instructions for installing and operating the ABB ACS/ACH 400 AC drives using the direct N2 Bus interface. It includes safety warnings, notes, and procedures required for qualified personnel.
The manual also details the required grounding, discharge times for capacitors, and cautions about automatic reset functions to prevent injury or equipment damage.
All electrical installation and maintenance work on the drive should be carried out by qualified electricians.
After switching off the main power, always allow the intermediate circuit capacitors 5 minutes to discharge before working on the drive.