GE N60 Instruction Manual page 334

5.7 CONTROL ELEMENTS
• 8BIT COMP 1 ADD/SUB: This setting specifies if the two arguments, A and B, should be added or subtracted to form
the effective operating signal. If the FlexLogic operand configured under this setting is logic 0 ("Off"), the operating sig-
nal is A – B. If the FlexLogic operand configured under this setting is logic 1 ("On"), the operating signal is A + B. The
element will switch between adding and subtracting instantly, without any additional delay.
• 8BIT COMP 1 PICKUP: This setting specifies the pickup threshold for the comparator. This setting applies to the value
scaled via the
8BIT COMP 1 SCALE FACTOR
• 8BIT COMP 1 HYSTERESIS: Specifies the width of hysteresis for the comparator. The following logic applies:
If
8BIT COMP 1 DIRECTION
If
8BIT COMP1 DIRECTION
• 8BIT COMP 1 PICKUP DELAY: Specifies a pickup time delay for the
• 8BIT COMP 1 RESET DELAY: Specifies a reset time delay for the
• 8BIT COMP 1 SCALE FACTOR: This setting allows re-scaling the two input arguments and the effective operating
quantity. The same scaling factor applies to all three actual values:
The scaling enables easier application, testing and troubleshooting. Also, it facilitates telemetry applications.
• 8BIT COMP 1 BLOCK: This setting specifies a FlexLogic operand for blocking the feature based on user-programma-
ble conditions. When the blocking input is asserted, the element resets its timers, de-asserts the
5
operands (if asserted), clears self-reset targets, logs a 'blocked' event if Events are enabled, and
8BIT COMP1 OP
becomes inactive. When unblocked, the element will start operating instantly. If exposed to pickup conditions for an
extended period of time and unblocked, the element will pickup and start timing out at the moment of unblocking.
Typical applications of the
example, remote power may be digitized using the digitizer feature and sent via remote inputs/outputs to be used
locally by the 8-bit comparator. The VT fuse fail at the remote location, or the
be used to block this element.
5-216
setting.
 "Over", then Dropout 
 "Under", then Dropout 
setting include conditions when the input signals are not reliable. For
8BIT COMP 1 BLOCK
N60 Network Stability and Synchrophasor Measurement System
–
8BIT COMP 1 PICKUP 8BIT COMP 1 HYSTERESIS
+
8BIT COMP 1 PICKUP 8BIT COMP 1 HYSTERESIS
8BIT COMP 1 OP
FlexLogic operand.
8BIT COMP 1 OP
,
8BIT COMP 1 A 8BIT COMP 1 B
REMOTE DEVICE OFFLINE
5 SETTINGS
FlexLogic operand.
and
8BIT COMP 1 OUT
and
8BIT COMP 1 PKP
indication may
GE Multilin
.