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IB02602004E
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Instructional Literature
Effective: May 2008
Page
175
Instructions for the FP-6000 Protective Relay
9.1 Contact Inputs
The FP-6000 is equipped with eight optically isolated inputs that
may be configured as inputs to predefined FP-6000 functions or
for custom logic applications. The contact inputs are either ON
(external contact closed) or OFF (external contact open). They are
“debounced” for one power line cycle to prevent false operation
from transient signals. Because of the debouncing, signals are
not processed until the input remains stable for one cycle.
The contact inputs are designed to be activated by connecting
the “C In Source” voltage on terminal block TB2 to the desired
inputs through a dry contact, typically an external switch,
pushbutton, or relay contact. See Section 6.3.5.
The contact inputs can be configured as circuit breaker logic
inputs, Remote Reset, Setting Group Selection, Datalogger
Trigger, Demand Sync, or for user-defined logic functions. The
contact inputs can also be programmed as an input to any logic
gate. The logic gates provide blocking of the protective functions,
operation of the output relays, and provisions for custom logic.
The Contact Input setting options are shown below. With the
exception of the user-defined option, each function can be
programmed to only one contact input.
•
52a
•
52b
•
Breaker Failure Initiate (BFI)
•
Breaker Trouble
•
Remote Open
•
Remote Close
•
Remote Reset
•
Datalogger Trigger
•
Demand Sync
•
Setting Group 1
•
Setting Group 2
•
User Defined
•
Sync Bypass
•
Sync Block
•
52CSClosed
•
ARInit
•
ARBlock
•
IncShot
•
ARLock
•
RstLock
•
Start1
•
Start2
•
Stop
•
StartBlock
•
PD
•
ThermSwitch
•
Vibration
•
Pressure
•
87Trip
•
ZeroSpeed
•
TachPulse
The FP-6000 is shipped from the factory with default settings for
the Contact Inputs. It is necessary to change the System
Configuration setting (activated by the “Set” pushbutton) “I/O
Config” from “Default” to “Custom” to change the programmed
function of the inputs. The eight inputs are predefined with the
following default functions when the input configuration is set to
default.
Cin1
52a (Open/Trip) Circuit Breaker Feedback
Cin2
52b (Close) Circuit Breaker Feedback
Cin3
BFI, External Breaker Failure Initiation
Cin4
Breaker Trouble
Cin5
Remote Breaker Open (If Enabled in Settings)
Cin6
Remote Breaker Close (If Enabled in Settings)
Cin7
Remote FP-6000 Reset
Cin8
User Defined
9.2 Output Relays and Programmable LEDs
The FP-6000 is equipped with seven electromechanical output
relays. The relays include five Form A output relays (Trip1, Trip2,
Rly3, Rly4, Rly5), one Form C Alarm output relay, and a Form C
Relay Healthy Alarm relay. The functionality of the Relay Healthy
alarm is fixed. The functionality of the remaining six relays is
programmed via the “Output Config” setting sub-menu
(activated by the “Set” pushbutton). A 4-input logic gate is
associated with each of these six outputs. Each output of the
logic gate can be configured as an AND, OR, NAND, or NOR gate.
The relays are energized based on the output logic gate
programming and de-energized based on the dropout setting.
Output relay operation may be programmed as Latched,
Unlatched, or Off Delay. The output relay is energized when any
of the features programmed to the Output Logic Gate operate. A
description of the dropout for each mode of operation follows:
Unlatched
When configured for Unlatched operation, the state of the output
relay directly follows the output state of the associated Output
Logic Gate. The output relay remains in the energized state until
all features programmed to operate the relay return to the non-
operated state.
Off Delay
When configured for Off Delay operation, the output relay
remains energized for an additional Off Delay time after the Logic
Gate output clears. The output relay remains energized until all
features programmed to operate the relay return to the non-
operated state and the number of cycles specified in the Off
Delay setpoint has expired. The off-delay timer is started when
all features programmed to operate the relay return to the non-
operated state.
Latched
With the dropout set to Latched, a reset signal is required to de-
energize the output relay. The Trip1, Trip2, and Alarm output
relays are de-energized by a reset from the front panel Reset Trip,
the Remote Reset contact input, or a communication Remote
Reset command. The six programmable relays may be de-
energized by a reset from the front panel Reset Relay menu or a
communication Deactivate Relay command. This mode is used
to provide a “lockout” function or for operations that must be
acknowledged.
The FP-6000 provides optional Trip Coil Supervision of the Trip1
output relay and Close Coil Supervision of the Trip2 output relay.
The coil monitoring functions are enabled in the “Output Config”
setting menu (activated by the “Set” pushbutton) for the Trip1
and Trip2 relays.
The FP-6000 is shipped from the factory with default settings for
the Outputs. It will be necessary to change the System
Configuration setting “I/O Config” from “Default” to “Custom”
to change the programmed function of the outputs. See Default
settings in Table 50.