13.07.2015 Views

MiCOM P921/P922/P923 - Schneider - error

MiCOM P921/P922/P923 - Schneider - error

MiCOM P921/P922/P923 - Schneider - error

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Firmware and Service ManualP92x/EN VH/H42xVersion History<strong>MiCOM</strong> <strong>P921</strong>/<strong>P922</strong>/<strong>P923</strong> Page 5/6<strong>P923</strong>XXXXXXXXXXXXXXXX<strong>P922</strong><strong>P921</strong>Relay type: P92x …SoftwareVersionMajor MinorXHardwareSuffixOriginalDate of IssueDescription of Changes11 A HARD 5 06/2010 Software changes implemented in this versionXX- VT Supervision added- New combination of Fi and df/dti protections- Additional tAux functions- New 8 Boolean equations (with new operands, results usable asan operand)- New Fail safe option- Addition of a bandpass filter on 59N function- Additional alarm inhibition- Addition of a new menu ORDER added- Digital input assignation to “Ctrl trip” and “Ctrl close” functions- modification of CB operation counting,- addition of clock synchro. from a logic input- Addition of derived V0 sequence overvoltage stage- Addition of df/dt blocking inhibition- new disturbance records durations- new default display- Addition of LED reset function- Addition of maintenance mode of relaysS1CompatibilityV2.14XXXXXXXXXXXXXXXXXXX

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