Instructional Literature
Page
178
Effective: May 2008
Instructions for the FP-6000 Protective Relay
For more information visit: www.eaton.com
IB02602004E
9.5 Logic Operation by the FP-6000
From the internal operation of the FP-6000, the pickup and
operation state of protective functions, system alarms, and
breaker logic are set as operation dictates and as described in
other sections of this manual (e.g. Inverse Time Overcurrent
Pickup). The FP-6000 maintains a “Data Store” or image of the
state of the outputs from each function. The FP-6000 uses the
value from the Data Store, according to what the user has
specified in the Setting Mode, to determine the output state of
each logic element. The user has a selection of logical elements
available that are connected together by the use of programming
references within the “Set Mode” rather than with wires. The
various logic gates and other logical elements are “connected”
together using symbolic references within the “Set Mode.”
The logical elements are:
•
Eight electrically isolated contact inputs (Cin1 – Cin8).
•
A Zone Interlock input (Zin).
•
Six flexible logic gates (LG1 – LG6).
•
Six timer gates with programmable on delay and/or
programmable off delay (TG1 – TG6).
•
Logic latches (Q1 – Q2).
•
System status associated with Pickup and Timeout of
protective functions, operation of Monitoring Mode System
Alarms, Breaker monitoring and control, and communication
logic states.
•
Seven flexible Output logic gates (OGI – OG7).
The FP-6000 functions are processed in the following order to
ensure proper and predictable operation of the logic functions.
1. One cycle values for rms and phasor quantities are computed.
2. The Contact Input states are read.
3. Logic Blocking Gate functions.
4. Protection functions.
5. Breaker monitoring and control functions.
6. Logic Gate, Timer Gate, and Latch functions LG1 – LG6, then
TG1 – TG6, then Q1 – Q2.
7. Logic Output Gate functions OG1 – OG7.
8. Output Relay logic routine.
Remember the programmed logic is evaluated sequentially, one
element at a time. Consequently, if this is not taken into account,
the user may encounter unexpected logic operation.
9.6 Programming Logic Functions
Some settings will so substantially change the structure of
programming that they force the user to make a choice to save
immediately and re-enter Set Mode in order to continue. The
System Configuration settings that permit Custom programming
of the I/O Configuration and Programmable Logic fall into this
category.
Programming logic consists of picking the logic gates as in any
logic design and connecting them together. Instead of signals,
“Data Stores” record the state of each of the important system
parameters as of the last determination or sampling. Instead of
wires, logical name references direct the FP-6000 code to obtain
the logic input from a particular Data Store. The computed
outputs of the logic elements are also saved. The stored results
may be directed to additional logic gate inputs until an output is
directed to an output gate. Thus, the user specified (or default)
logic results in a relay contact closing or opening.
Programming of the logic functions is accomplished by selecting
an input category and element for each logic gate input. Input
categories include Unused, Pickup, Trip, Logic, Inputs, System
Alarms, Breaker Control, and Communications. The Pickup and
Trip input categories include selection of individual or groups of
protective functions. The System Alarm category provides
selection of power, demand, THD, and breaker operation
functions. The Input category provides selection of one of the
eight contact inputs. The communications category provides
selection of any of the four communications logic states the user
may set true or false through the communication channel. Table
53 shows the elements available for each input category.
Table 53. Logic Elements Input Options.
The pickup and trip input categories provide selection of
predefined groups of protective functions. The definition of the
individual elements included in each group are shown in Table 54
Logic Input Group Definitions.
INPUT CATEGORY
ELEMENTS
Unused
Pickup
PH OC, G OC, IOC, TOC, OC, All Alm,
Volt, Freq, AllProt, 50X-1, 50X-2,
50X-3, 50R-1, 50R-2, 50R-3, 50P-2,
50P-3, 51P-1, 51P-2, 51P, 51X, 51R,
59A-1, 59A-2, 27A-1, 27A-2, 59M-1,
59M-2, 27M-1, 27M-2, 46-1, 46-2, 47-1, 47-2,
81U-1, 31U-2, 81O-1, 81O-2, BF, 55A, 55D,
55N-1, 59N-2, 32-1, 32-2, 32-3, LOP, LOPB
49DTG1, 49DTG2, 49DT1, 49DT2, 48DT3, 49DT4, 49DT5
49DT6, 49DT7, 49DT8, 49DT9, 49DT10, 49DT11, 49MT
49DA11, 49DA21, 49DA31, 49DA41, 49DA51, 49DA61
49DA71, 49DA81, 49DA91, 49DAA1, 49DAB1, 49MA1
49DA12, 49DA22, 49DA32, 49DA42, 49DA52, 49DA62
49DA72, 49DA82, 49DA92, 49DAA2, 49DAB2, 49MA2
32V-1, 32V-2, 32V-3
Trip
PH OC, G OC, IOC, TOC, OC, All Alm,
Volt, Freq, AllProt, 50X-1, 50X-2,
50X-3, 50R-1, 50R-2, 50R-3, 50P-2,
50P-3, 51P-1, 51P-2, 51P, 51X, 51R,
59A-1, 59A-2, 27A-1, 27A-2, 59M-1,
59M-2, 27M-1, 27M-2, 46-1, 46-2, 47-1, 47-2,
81U-1, 31U-2, 81O-1, 81O-2, BF, 55A, 55D,
PhZone, GndZone, 59N-1, 59N-2,
32-1, 32-2, 32-3, LOPA
49DTG1, 49DTG2, 49DT1, 49DT2, 48DT3, 49DT4, 49DT5
49DT6, 49DT7, 49DT8, 49DT9, 49DT10, 49DT11, 49MT
49DA11, 49DA21, 49DA31, 49DA41, 49DA51, 49DA61
49DA71, 49DA81, 49DA91, 49DAA1, 49DAB1, 49MA1
49DA12, 49DA22, 49DA32, 49DA42, 49DA52, 49DA62
49DA72, 49DA82, 49DA92, 49DAA2, 49DAB2, 49MA2
32V-1, 32V-2, 32V-3
Logic
LG1, LG2, LG3, L54, LG5, LG6, TG1,
TG2, TG3, TG4, TG5, TG6, OG1, OG2,
OG3, OG4, OG5, OG6, OG7
Inputs
Cin1, Cin2, Cin3, Cin4, Cin5, Cin6,
Cin7, Cin8 or ZI In
System Alarm
Power, Power Demand, Current
Demand, % THD, Bkr Ops, SI
BkrOPH, BkrAlm, BkrLoc
Breaker Control
OpenBkr, CloseBkr, Open, Closed,
BkrFail Alm, StateAlm, Mntr1Alm,
Mntr2Alm, All Alm, 67G-F, 67G-R,
67V_F, 67V_R, 67Q_F, 67Q_R, 67I_F,
67I_R, 67X-F, 67X-R, 67VIXF, 67VIXR,
67A-F, 67B-F, 67C-F, InSync, SyncFail,
SlipAlm, 25BL, 25LL, Coldload
79RUN, 79BLCK, 79Lock, 79Fail, 79SH1,
79SH2, 79SH3, 79SH4, 79AntiP
Communications
Comm1, Comm2, Comm3 or Comm4
