Merging unit self-supervision - Arc protection - Bay control and measurement - Merging unit - Operation Manual - SMU615 Substation Merging Unit - 1.0 - IEC - ANSI - 06.06.2023

SMU615 Operation Manual

The merging unit self-supervision handles internal run-time fault situations.The main indication of an internal fault is a flashing green Ready LED.

Internal faults can be divided to hardware errors, run-time errors in the application or operating system and communication errors. Further actions always depend on the cause of the error.

Note: Only authorized and skilled personnel should analyze the errors and decide on further actions.

The merging unit records system registrations, merging unit status data and events.

Note: Document all the recorded data from the merging unit before resetting the tripping and lockout functions.