GE 869 Instruction Manual page 517

CHAPTER 4: SETPOINTS
ELEMENT OPERANDS
Trip Bus Trip Bus 1 PKP
Trip Bus 1 OP
Trip Bus 2 to 6
Trip Circuit Monitoring TripCoil Mon 1 PKP
TripCoil Mon 1 OP
Undercurrent Undercur[X] Alarm PKP
Undercur[X] Alarm OP
Undercur[X] Trip PKP
Undercur[X] Trip OP
Underpower Underpwr Alarm PKP
Underpwr Alarm OP
Underpwr OP
UnderFrequency Underfreq 1 PKP
Underfreq 1 OP
VFD VFD Bypassed
Virtual Input 1 to 32 VI # ON
VI # OFF
Virtual Outputs 1 to 32 VO # ON
VO # OFF
Volts per Hertz 1 V/Hz 1 PKP
V/Hz 1 OP
VT Fuse Failure VT Fuse Fail1 OP
VT Fuse1 V Loss
NOTE:
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Underpwr PKP
Underfreq 2 to 4
VFD Not Bypassed
If Phase to Phase mode is selected in this protection element, in "EVENT DESCRIPTION"
column, "Phase A" becomes "Voltage AB", "Phase B" becomes "Voltage BC" and "Phase C"
becomes "Voltage CA".
Some operands can be re-named by the user. These are the names of the breakers in the
breaker control feature, the ID (identification) of contact inputs, the ID of virtual inputs, and
the ID of virtual outputs. If the user changes the default name or ID of any of these
operands, the assigned name will appear in the relay list of operands. The default names
are shown in the FlexLogic Operands table above.
Table 4-38: 869 FlexLogic Operators
TYPE
Editor
End
One-shot
EVENT DESCRIPTION
Asserted when the trip bus 1 element picks up
Asserted when the trip bus 1 element operates
The same set of operands as per Trip Bus 1
Trip Coil 1 Monitoring element has picked up.
Trip Coil 1 Monitoring element has operated for an amount of time greater
than the Close Circuit Monitor Pick-up Delay Time.
Undercurrent[X] Alarm has picked up.
Undercurrent[X] Alarm has operated.
Undercurrent[X] Trip has picked up.
Undercurrent[X] Trip has operated.
Underpower alarm stage picks up.
Underpower trip stage picks up.
Underpower alarm stage operates.
Underpower trip stage operates.
Underfrequency 1 has picked up
Underfrequency 1 has operated
The same set of operands as per Underfreq 1
The VFD is bypassed by the switch
The VFD is not bypassed by the switch
# – any virtual input number
Flag is set, logic = 1
Flag is set, logic = 0
The Volts per Hertz element 1 has picked up
The Volts per Hertz element 1 has operated
VT fuse failure detector 1 has operated
VT fuse 1 failure has lost voltage signals (V2 below 10% AND V1 below 5%
of nominal)
SYNTAX DESCRIPTION
INSERT Insert a parameter in an
equation list.
DELETE Delete a parameter from
an equation list.
END The first END
encountered signifies
the last entry in the list of
processed FlexLogic™
parameters.
POSITIVE ONE SHOT One shot that responds
to a positive going edge.
NEGATIVE ONE One shot that responds
SHOT to a negative going
edge.
DUAL ONE SHOT One shot that responds
to both the positive and
negative going edges.
FLEXLOGIC
NOTES
A 'one shot' refers to a
single input gate that
generates a pulse
response to an edge on
the input. The output
from a 'one shot' is True
(positive) for only one
pass through the
FlexLogic equation. There
is a maximum of 64 'one
shots'.
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