GE N60 Instruction Manual page 45

2 PRODUCT DESCRIPTION
FLEXCURVES™
Number: 4 (A through D)
Reset points: 40 (0 through 1 of pickup)
Operate points: 80 (1 through 20 of pickup)
Time delay: 0 to 65535 ms in steps of 1
FLEX STATES
Number: up to 256 logical variables grouped
under 16 Modbus addresses
Programmability: any logical variable, contact, or virtual
input
FLEXELEMENTS™
Number of elements: 16
Operating signal: any analog actual value, or two values in
differential mode
Operating signal mode: signed or absolute value
Operating mode: level, delta
Comparator direction: over, under
Pickup Level: –90.000 to 90.000 pu in steps of 0.001
Hysteresis: 0.1 to 50.0% in steps of 0.1
Delta dt: 20 ms to 60 days
Pickup & dropout delay: 0.000 to 65.535 s in steps of 0.001
NON-VOLATILE LATCHES
Type: set-dominant or reset-dominant
Number: 16 (individually programmed)
Output: stored in non-volatile memory
Execution sequence: as input prior to protection, control, and
FlexLogic
USER-PROGRAMMABLE LEDs
Number: 48 plus trip and alarm
Programmability: from any logical variable, contact, or vir-
tual input
Reset mode: self-reset or latched
LED TEST
Initiation: from any contact input or user-program-
mable condition
Number of tests: 3, interruptible at any time
Duration of full test: approximately 3 minutes
Test sequence 1: all LEDs on
Test sequence 2: all LEDs off, one LED at a time on for 1 s
Test sequence 3: all LEDs on, one LED at a time off for 1 s
USER-DEFINABLE DISPLAYS
Number of displays: 16
2  20 alphanumeric characters
Lines of display:
Parameters: up to 5, any Modbus register addresses
Invoking and scrolling: keypad, or any user-programmable con-
dition, including pushbuttons
CONTROL PUSHBUTTONS
Number of pushbuttons: 7
Operation: drive FlexLogic operands
GE Multilin N60 Network Stability and Synchrophasor Measurement System
USER-PROGRAMMABLE PUSHBUTTONS (OPTIONAL)
Number of pushbuttons: 12 (standard faceplate);
16 (enhanced faceplate)
Mode: self-reset, latched
Display message: 2 lines of 20 characters each
Drop-out timer: 0.00 to 60.00 s in steps of 0.05
Autoreset timer: 0.2 to 600.0 s in steps of 0.1
Hold timer: 0.0 to 10.0 s in steps of 0.1
SELECTOR SWITCH
Number of elements: 2
Upper position limit: 1 to 7 in steps of 1
Selecting mode: time-out or acknowledge
Time-out timer: 3.0 to 60.0 s in steps of 0.1
Control inputs: step-up and 3-bit
Power-up mode: restore from non-volatile memory or syn-
chronize to a 3-bit control input or synch/
restore mode
DIGITIZER
Input signal: any FlexAnalog parameter
Independent elements: 1 per CT bank, to a maximum of 5
Independent elements: 5
Response time: < 8 ms at 60 Hz, < 10 ms at 50 Hz
Upper / lower limit for input signal: 0.050 to 90 pu in steps of 0.001
Resolution: 8 bits / full-scale
Maximum error: ±0.6% of full-scale
Rounding method: nearest with a one-count dead-band
8-BIT COMPARATOR
Number of elements: 6
Operating signal: up to two 8-bit integers via FlexLogic
operands
Operating mode: add or subtract, controlled from any
FlexLogic operand
Operating signal mode: signed, absolute value
Comparator direction: over, under
Pickup level: –25400 to 25400 in steps of 1
Hysteresis: 0 to 5000 in steps of 1
Pickup/Dropout delay: 0 to 65.535 s in steps of 0.01
Scaling factor for display: 0.01 to 100.00 in steps of 0.01
8-BIT SWITCH
Number of elements: 6
Input signals: two 8-bit integers via FlexLogic oper-
ands
Control signal: any FlexLogic operand
Response time: < 8 ms at 60 Hz, < 10 ms at 50 Hz
DIGITAL ELEMENTS
Number of elements: 48
Operating signal: any FlexLogic operand
Pickup delay: 0.000 to 999999.999 s in steps of 0.001
Dropout delay: 0.000 to 999999.999 s in steps of 0.001
Timing accuracy: ±3% or ±4 ms, whichever is greater
2.3 SPECIFICATIONS
2
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