CHAPTER 5: SETTINGS FLEXLOGICM60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5-1495Figure 5-68: FlexLogic equation for virtual output 36. Repeating the process described for virtual output 3, select the FlexLogic parameters for Virtual Output 4.– 99: The final output of the equation is virtual output 4, which is parameter “= Virt Op 4".– 98: The operator preceding the output is timer 2, which is operand “TIMER 2". Note that the settings required forthe timer are established in the timer programming section.– 97: The operator preceding timer 2 is OR #2, a 3-input OR, which is parameter “OR(3)”.– 96: The lowest input to OR #2 is operand “Cont Ip H1c On”.– 95: The center input to OR #2 is operand “TIMER 1".– 94: The input to timer 1 is operand “Virt Op 3 On".– 93: The upper input to OR #2 is operand “LATCH (S,R)”.– 92: There are two inputs to a latch, and the input immediately preceding the latch reset is OR #1, a 4-input OR,which is parameter “OR(4)”.– 91: The lowest input to OR #1 is operand “Virt Op 3 On".– 90: The input just above the lowest input to OR #1 is operand “XOR(2)”.– 89: The lower input to the XOR is operand “DIG ELEM 1 PKP”.– 88: The upper input to the XOR is operand “Virt Ip 1 On".– 87: The input just below the upper input to OR #1 is operand “Virt Op 2 On".– 86: The upper input to OR #1 is operand “Virt Op 1 On".– 85: The last parameter is used to set the latch, and is operand “Virt Op 4 On".The equation for virtual output 4 is:[85] Virt Op 4 On[86] Virt Op 1 On[87] Virt Op 2 On[88] Virt Ip 1 On[89] DIG ELEM 1 PKP[90] XOR(2)[91] Virt Op 3 On[92] OR(4)[93] LATCH (S,R)[94] Virt Op 3 On[95] TIMER 1[96] Cont Ip H1c On[97] OR(3)[98] TIMER 2[99] = Virt Op 4Now check that the selection of parameters produce the required logic by converting the set of parameters into alogic diagram. The result is shown in the figure, which is compared to the logic for virtual output 4 diagram as a check.FlexLogic entry:NOTFlexLogic entry:AND (2)FlexLogic entry:= Virt Op 3 (VO3)979899FlexLogic entry:Dig Element 2 (DE2) OPFlexLogic entry:Cont Ip 2 On (H1c)9596AND Virtual output 3827030A2.CDR
