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 settings7.3.4.1 Inspecting wiringThe physical inspection of wiring connections often reveals the wrong connection forphase currents or voltages. However, even though the phase current connections toIED terminals might be correct, wrong polarity of one or more measurementtransformers can cause problems.• Check the current or voltage measurements and their phase information fromMain 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/Binaryoutputs.7.3.4.2 Sample data interruptionsOccasionally IEDs can receive corrupted or faulty measurement data during runtime.In these cases the operation system halts the corresponding application execution untilthe correct data are received. In case of permanent faults, the measurement chain shallbe 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 7Troubleshooting615 series 87Operation Manual
