S5 Outputs; Description; Introduction To Flexlogic - GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual

5.7 S5 OUTPUTS

5.7 S5 OUTPUTS
The S5 OUTPUTS page contains the settings to configure all outputs.
SS SETPOINTS
SS S5 OUTPUTS
The 745 has nine digital outputs (one solid-state, four trip rated form A contacts, and four auxiliary form C con-
tacts) which are fully programmable using FlexLogic™ equations. FlexLogic™ is a highly flexible and easy-to-
use equation format which allows any combination of protection and monitoring elements, logic inputs, outputs,
and timers to be assigned to any output, using multiple input AND, OR, NAND, NOR, XOR, and NOT Boolean
logic gates. Each digital output can have an equation of up to 20 parameters. Five "virtual outputs" are also
available, each having an equation containing up to 10 parameters, whose output can be used as a parameter
in any other equation.
In addition to these outputs, the conditions to trigger a waveform capture (trace memory) is also programmable
using FlexLogic™. A 10 parameter equation is provided for this purpose.
A FlexLogic™ equation defines the combination of inputs and logic gates to operate an output. Each output
has its own equation, an equation being a linear array of parameters. Evaluation of an equation results in either
a 1 (= ON, i.e. operate the output), or 0 (= OFF, i.e. do not operate the output).
5
The table below provides information about FlexLogic™ equations for all outputs in the 745:
Table 5–5: FLEXLOGIC™ OUTPUT TYPES
NAME
Output Relay 1
Output Relay 2
Output Relay 3
Output Relay 4
Output Relay 5
Output Relay 6
Output Relay 7
Output Relay 8
Self-Test Relay
Trace Trigger
Virtual Output 1
Virtual Output 2
Virtual Output 3
Virtual Output 4
Virtual Output 5
* cycle refers to the power system cycle as detected by the frequency circuitry of the 745.
5-80
This message indicates the start of setpoints page S5 OUTPUTS. Press
to view the contents or
M E SSA G E
TYPE
solid-state
trip-rated
form A contacts
form C contacts
form C contacts
dedicated for self-test
(not programmable)
waveform capture trigger
internal register
(for use in other equations)
745 Transformer Management Relay
to go on to the next page.
S E TP O INT

5.7.2 INTRODUCTION TO FLEXLOGIC™

NUMBER OF EQUATION
PARAMETERS
20
20 each
20 each
---
10
10 each
5 SETPOINTS

5.7.1 DESCRIPTION

EVALUATION
RATE
every 1/2 cycle*
every 1/2 cycle*
every 100 ms
every 100 ms
every 1/2 cycle*
every 1/2 cycle*
GE Power Management