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P12x/EN T/Eb6 - Schneider - error

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User Guide<strong>P12x</strong>/<strong>EN</strong> FT/<strong>Eb6</strong>MiCOM P120/P121/P122/P123 Page 53/622.9.14 Submenu Logic Equations (P121, P122 & P123 only)2.9.14.1 ParametersWith the Logic Equations submenu, it is possible to form complex Boolean functions usingNOT, AND and OR operators (indicated from highest to lowest priority). Up to 16 operandscan be used in any single equation. The following logic signals are available for mapping toan equation:Function P121 P122 P123 InformationNull X X X the condition is null (low level)Not Null X X X the condition is not null (high levelI> X X X Instantaneous first phase overcurrent thresholdtI>> X X X Time delayed second phase overcurrent thresholdI>> X X X Instantaneous second phase overcurrent thresholdtI> X X X Time delayed first phase overcurrent thresholdI>>> X X X Instantaneous third phase overcurrent thresholdtI>>> X X X Time delayed third phase overcurrent thresholdIe> X X X Instantaneous first earth overcurrent thresholdtIe> X X X Time delayed first earth overcurrent thresholdIe>> X X X Instantaneous second earth overcurrent thresholdtIe>> X X X Time delayed second earth overcurrent thresholdIe>>> X X X Instantaneous third earth overcurrent thresholdtIe>>> X X X Time delayed third earth thresholdI2> X X Instantaneous first phase negative sequencethresholdtI2> X X Time delayed negative phase sequence (1 stthreshold)I2>> X X Instantaneous second phase negative sequencethresholdtI2>> X X Time delayed negative phase sequence (2 ndthreshold)Th. Al. X X Thermal alarm output signal (thermal alarm)Th. Tr. X X Trip on Thermal overload (thermal trip)I< X X Instantaneous undercurrent thresholdtI< X X Time delayed undercurrentBrk Co. X X broken conductor.Reclos. X Autoreclose final triptAux 1 X X X Copy of the status of the Logic Input tAux 1tAux 2 X X X Copy of the status of the Logic Input tAux 2tAux 3 X X Copy of the status of the Logic Input tAux 3tAux 4 X Copy of the status of the Logic Input tAux 4tAux 5 X Copy of the status of the Logic Input tAux 5Input 1 X X X Instantaneous digital input 1Input 2 X X X Instantaneous digital input 2Input 3 X X X Instantaneous digital input 3

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