5-214 G60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUALFLEXLOGIC CHAPTER 5: SETTINGS55.6.8 Non-volatile latchesSETTINGS FLEXLOGIC NON-VOLATILE LATCHES LATCH 1(16)The non-volatile latches provide a permanent logical flag that is stored safely and do not reset upon restart after the relayis powered down. Typical applications include sustaining operator commands or permanently blocking relay functions,such as Autorecloser, until a deliberate interface action resets the latch.LATCH 1 TYPE — This setting characterizes Latch 1 to be Set- or Reset-dominant.LATCH 1 SET — If asserted, the specified FlexLogic operands 'sets' Latch 1.LATCH 1 RESET — If asserted, the specified FlexLogic operand 'resets' Latch 1.Figure 5-110: Non-volatile latch operation table (N = 1 to 16) and logic LATCH 1 LATCH 1FUNCTION: DisabledRange: Disabled, Enabled LATCH 1 ID:NV Latch 1Range: up to 20 alphanumeric characters LATCH 1 TYPE:Reset DominantRange: Reset Dominant, Set Dominant LATCH 1 SET:OffRange: FlexLogic operand LATCH 1 RESET:OffRange: FlexLogic operand LATCH 1TARGET: Self-resetRange: Self-reset, Latched, Disabled LATCH 1EVENTS: DisabledRange: Disabled, EnabledLatch n type Latch nsetLatch nresetLatch nonLatch noffResetDominantON OFF ON OFFOFF OFF PreviousStatePreviousStateON ON OFF ONOFF ON OFF ONSetDominantON OFF ON OFFON ON ON OFFOFF OFF PreviousStatePreviousStateOFF ON OFF ON
