ABB Relion 620 Series - Page 12

Resetting protection relays..................................................................... 93
Clearing and acknowledging via the local HMI..................................93
Changing the protection relay functionality.............................................94
Defining the setting group..................................................................94
Activating a setting group............................................................. 94
Copying a setting group................................................................95
Browsing and editing setting group values................................... 96
Activating programmable LEDs......................................................... 98
Setting autoscroll delay..................................................................... 98
Section 7 Troubleshooting ................................................................101
Fault tracing.......................................................................................... 101
Identifying hardware errors..............................................................101
Identifying runtime errors.................................................................101
Identifying communication errors.....................................................101
Checking front communication link operation.............................102
Checking time synchronization...................................................102
Running the display test.................................................................. 102
Indication messages............................................................................. 102
Internal faults................................................................................... 102
Warnings..........................................................................................105
Correction procedures.......................................................................... 107
Rebooting the software....................................................................107
Restoring factory settings................................................................ 107
Setting passwords........................................................................... 108
Identifying relay application problems............................................. 108
Inspecting wiring.........................................................................109
Sample data interruptions...........................................................109
Section 8 Commissioning..................................................................111
Commissioning checklist...................................................................... 111
Checking the installation.......................................................................112
Checking of the power supply......................................................... 112
Checking CT circuits........................................................................112
Checking VT circuits........................................................................113
Checking binary input and output circuits........................................113
Checking binary input circuits.....................................................113
Checking binary output circuits...................................................114
Checking optical connections.......................................................... 114
Authorizations....................................................................................... 114
User authorization........................................................................... 114
Table of contents
4 620 series ANSI
Operation Manual