CHAPTER 5: SETTINGS INPUTS/OUTPUTSD30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 5-2595Application example 3A make before break functionality must be added to the preceding example. An overlap of 20 ms is required to implementthis functionality.Write the following FlexLogic equation (EnerVista example shown).Set both timers (Timer 1 and Timer 2) to 20 ms pickup and 0 ms dropout.Program the Latching Outputs by making the following changes in the SETTINGS INPUTS/OUTPUTS CONTACTOUTPUTS CONTACT OUTPUT H1a and CONTACT OUTPUT H1c menus (assuming an H4L module):OUTPUT H1a OPERATE: “VO1”OUTPUT H1a RESET: “VO4”OUTPUT H1c OPERATE: “VO2”OUTPUT H1c RESET: “VO3”Application example 4A latching contact H1a is to be controlled from a single virtual output VO1. The contact is to remain closed as long as VO1is high, and is to remain opened when VO1 is low. Program the relay as follows.Write the following FlexLogic equation (EnerVista example shown).Program the Latching Outputs by making the following changes in the SETTINGS INPUTS/OUTPUTS CONTACTOUTPUTS CONTACT OUTPUT H1a menu (assuming an H4L module):OUTPUT H1a OPERATE: “VO1”OUTPUT H1a RESET: “VO2”5.9.4 Virtual outputsSETTINGS INPUTS/OUTPUTS VIRTUAL OUTPUTS VIRTUAL OUTPUT 1(96) VIRTUAL OUTPUT 1 VIRTUAL OUTPUT 1 IDVirt Op 1Range: up to 12 alphanumeric characters
