GE Multilin 745

Target and Flash Messages
745
Transformer Management Relay
Actual Values
http://www.GEindustrial.com/multilin
6–19
GE Multilin
The recorded event displayed for Logic inputs and Virtual Inputs will show the
programmed name of the input/output. An active target display may also be
generated as a result of a self-test error. When this occurs, the target message will
look like this:
The
<ERROR> part in the above display will be one of the following:
For more detail about these errors, refer to the next section. As well, there is an
additional message that may appear as a target message. It looks like this:
This message will be placed in the target message queue whenever
S1 745 SETUP !"
INSTALLATION ! 745 SETPOINTS is set to “Not Programmed”. This serves as a warning
that the relay has not been programmed for the installation and is therefore not in
the in-service state.
Self-Test Errors The 745 performs self-diagnostics at initialization (after power-up), and
continuously thereafter (in a background task). The tests ensure that every testable
unit of the hardware is functioning correctly.
ANY SELF-TEST ERROR INDICATES A SERIOUS PROBLEM REQUIRING
SERVICE.
Major Self-Test Errors:
Upon detection of a major self-test error, the 745:
• disables all protection functionality
• turns on the front panel Self-Test Error LED
• turns off the front panel In Service LED
• de-energizes all output relays, including the Self-Test Relay
• indicates the failure by inserting an appropriate message in the target message
queue
• records the failure in the Event Recorder
Minor Self-Test Errors:
Upon detection of a minor self-test error, the 745:
• turns on the front panel Self-Test Error LED
• de-energizes the Self-Test Relay
• indicates the failure by inserting an appropriate message in the target message
queue
• records the failure in the Event Recorder
! SELF-TEST ERROR:
! <ERROR>
Logic Power Out Analog Output Emulation Software
Real-Time Clock Bad Xfmr Settings Flexlogic Eqn
DSP Processor EEPROM Memory Access Denied
Not Calibrated Int Temperature IRIG-B Signal
SETPOINTS HAVE NOT
BEEN PROGRAMMED!
CAUTION