8. Change the magnitude of the voltage and current for phase 1 to a value higherthan the set value DU> and DI<.9. Check that the start output signals STDUL1 and STDIL1 and the general startsignals STDU or STDI are activated.10. Check that the start output signals for the current and voltage phases 2 and 3are activated by changing the magnitude of the voltage and current for phases2 and 3.9.4.2.6 Completing the test M1405-130 v5Continue to test another function or end the test by changing the TESTMODEsetting to Off. Restore connections and settings to their original values, if they werechanged for testing purposes.9.5 Control SEMOD53560-1 v19.5.1 Synchrocheck, energizing check, and synchronizingSESRSYN M2377-3 v12This section contains instructions on how to test the synchrocheck, energizingcheck, and synchronizing function SESRSYN for single arrangements.Prepare the IED for verification of settings outlined in Section "Preparing the IEDto verify settings".At commissioning and periodical checks, the functions shall be tested with the usedsettings. To test a specific function, it might be necessary to change some settingparameters, for example:• AutoEnerg = Off/DLLB/DBLL/Both• ManEnerg = Off• Operation = Off/On• Activation of the voltage selection function if applicableThe tests explained in the test procedures below describe the settings, which can beused as references during testing before the final settings are specified. Aftertesting, restore the equipment to the normal or desired settings.A secondary injection test set with the possibility to alter the phase angle andamplitude of the voltage is needed. The test set must also be able to generatedifferent frequencies on different outputs.The description below applies for a system with a nominalfrequency of 50 Hz but can be directly applicable to 60 Hz.SESRSYN can be set to use different phases, phase to earth or1MRK 511 425-UEN A Section 9Testing functionality by secondary injectionBay control REC650 2.2 IEC 77Commissioning manual
