9.2.7.2 Pulse counter logic PCGGIOMain menu/Settings/General settings/Metering/PulseCounter(PCGGIO)/PCIn the Pulse counter PCGGIO folder there are a number of instances of the pulsecounter function PCGGIO. Each instance has a setting and some settable parameters.The setting Operation is used to turn the function on or off. The parameters areadjusted to change cycle times, pulse counter criteria and the like.9.2.7.3 Function for energy calculation and demand handling ETPMMTRMain menu/Settings/General settings/Metering/ThreePhEnergMeas(MMTR)/ETPParameters for activating the function, activate accumulation of energy values,selection of time interval for energy calculation and forward/reverse pulse quantitiesfor accumulated energy values are found here.9.3 Setting group N9.3.1 OverviewThere are some default setting groups. Under general settings, parameters in thesegroups can be changed to suit the needs of an application. The default settings havebeen chosen according to established practice in the industry but will usually require acertain amount of adjustment to suit the requirements of individual applications.9.3.2 Differential protection9.3.2.1 OverviewThe settings available for differential protection in Setting group N are not the same asthose under General settings. The main difference is that settings in the Setting groupN category can be changed on the fly without the IED requiring a restart. A dialog boxappears when attempting to make changes to setting group N. Choose OK to proceed,or cancel to abort.9.3.2.2 High impedance differential protection HZPDIF (87X)Main menu/Settings/Setting group N/Differential protection/HighImpDifferential(PDIF,87)/HZDSection 9 1MRK506276-UUS BRead and change settings52Operator's manual
