1.
Select
Main Menu/Configuration/Authorization
.
2.
Select the password to be reset with
or
.
3.
Press
, change the password with
or
and press
again.
4.
Repeat steps 2 and 3 to set the rest of the passwords.
7.3.4
Identifying IED application problems
•
Check that the function is on
•
Check blocking
•
Check mode
•
Check measurement value
•
Check connection to trip and disturbance recorder functions
•
Check channel settings
7.3.4.1
Inspecting wiring
The physical inspection of wiring connections often reveals the wrong connection for
phase currents or voltages. However, even though the phase current connections to
IED terminals might be correct, wrong polarity of one or more measurement
transformers can cause problems.
•
Check the current or voltage measurements and their phase information from
Main menu/Measurements
.
•
Check that the phase information and phase shift between phases is correct.
•
Correct the wiring if needed.
•
Check the actual state of the connected binary inputs from
Main menu/
Monitoring/I/O status/Binary input values
.
•
Test and change the relay state manually in
Main menu/Tests/Binary
outputs
.
7.3.4.2
Sample data interruptions
Occasionally IEDs can receive corrupted or faulty measurement data during runtime.
In these cases the operation system halts the corresponding application execution until
the correct data are received. In case of permanent faults, the measurement chain shall
be checked to remove the origin of the faulty measurement data.
In case of persistent faults originating from IED's internal faults,
contact ABB for repair or replacement actions.
1MRS756708 A
Section 7
Troubleshooting
615 series
87
Operation Manual
