GE MI-869 - User-Programmable Elements

CHAPTER 1: INTRODUCTION SPECIFICATIONS
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–21
User-Programmable Elements
FLEXLOGIC
Lines of code:........................................................1024
Supported operations: .....................................NOT, XOR, OR (2 to 16 inputs), AND (2 to 16 inputs), NOR (2 to
16 inputs), NAND (2 to 16 inputs), latch (reset-dominant),
edge detectors, timers
Inputs:.......................................................................any logical variable, contact, or virtual input
Number of timers:............................................... 32
Pickup delay: .........................................................0 to 60000 (ms, sec., min.) in steps of 1
Dropout delay:......................................................0 to 60000 (ms, sec., min.) in steps of 1
Timer accuracy:................................................... ±3% of delay setting or ±¼ cycle (whichever is greater) from
pickup to operate
FLEXELEMENTS
Number of elements: ........................................8
Operating signal:.................................................Any analog actual value, or two values in a differential mode
Operating signal mode: ...................................Signed, or Absolute value
Operating mode: .................................................Level, Delta
Comparison direction: ......................................Over, Under
Pickup Level:..........................................................-30.000 to 30.000 pu in steps of 0.001 pu
Hysteresis:..............................................................0.1 to 50.0% in steps of 0.1%
Delta dt: ...................................................................40 msec to 45 days
Pickup and dropout delays: ...........................0.000 to 6000.000 s in steps of 0.001 s
FLEXSTATES
Number of States:...............................................256 logical variables grouped under 16 Modbus addresses
Programmability: ................................................Any FlexLogic operand, any digital input, any virtual input,
any remote input
NON-VOLATILE LATCHES
Type:..........................................................................Set-dominant or Reset-dominant
Range: ......................................................................16 individually programmed
Output:.....................................................................Stored in non-volatile memory
Execution sequence: .........................................As input prior to protection, control and FlexLogic
FLEXCURVES
Number: ..................................................................4 (A through D)
Reset points:..........................................................40 (0.00 to 0.98 x pickup)
Operate points: ....................................................80 (1.03 to 20.0 x pickup)
Time delay:.............................................................0 to 200,000,000 ms in steps of 1 ms
Saturation level:...................................................20 times the pickup level
USER-PROGRAMMABLE LEDS
Number: ..................................................................12
Programmability: ................................................any logic variable, contact, or virtual input
Reset mode:........................................................... self-reset or latched
USER-PROGRAMMABLE PUSHBUTTONS
Number of pushbuttons:.................................3
Mode:........................................................................Self-reset, latched
Display message:................................................1 line of 25 characters maximum
Dropout timer:......................................................0.000 to 60.000 s in steps of 0.005
Auto-reset 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
Timer accuracy:................................................... ±3% of delay setting or ±¼ cycle (whichever is greater) from
pickup to operate