Non-Volatile Latches - GE G60 Instruction Manual

5.5 FLEXLOGIC
The
FLEXELEMENT 1 DT UNIT
FLEXELEMENT 1 COMP MODE
rate of change mode of operation. This setting is applicable only if
This
FLEXELEMENT 1 PKP DELAY
specifies the reset delay of the element.

PATH: SETTINGS FLEXLOGIC
 LATCH 1

5
The non-volatile latches provide a permanent logical flag that is stored safely and will not reset upon reboot after the relay
is powered down. Typical applications include sustaining operator commands or permanently block relay functions, such as
Autorecloser, until a deliberate interface action resets the latch. The settings element operation is described below:
• 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.
LATCH N LATCH N LATCH N
TYPE SET RESET
Reset ON
Dominant
OFF
ON
OFF
Set ON
Dominant
ON
OFF
OFF
Figure 5–64: NON-VOLATILE LATCH OPERATION TABLE (N = 1 to 16) AND LOGIC
5-158
setting specifies the time unit for the setting
is set to "Delta". The
FLEXELEMENT 1 DT
setting specifies the pickup delay of the element. The


NON-VOLATILE LATCHES

LATCH 1
FUNCTION: Disabled
LATCH 1 TYPE:
MESSAGE
Reset Dominant
LATCH 1 SET:
MESSAGE
Off
LATCH 1 RESET:
MESSAGE
Off
LATCH 1
MESSAGE
TARGET: Self-reset
LATCH 1
MESSAGE
EVENTS: Disabled
LATCH N LATCH N
ON OFF
OFF ON OFF
OFF Previous Previous
State State
ON OFF ON
ON OFF ON
OFF ON OFF
ON ON OFF
OFF Previous Previous
State State
ON OFF ON
G60 Generator Protection System
FLEXELEMENT 1 dt
setting specifies duration of the time interval for the
FLEXELEMENT 1 COMP MODE
FLEXELEMENT 1 RST DELAY
5.5.8 NON-VOLATILE LATCHES

LATCH 1(16)
Range: Disabled, Enabled
Range: Reset Dominant, Set Dominant
Range: FlexLogic operand
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS
. This setting is applicable only if
is set to "Delta".
setting
GE Multilin