GE Grid Solutions
D25
User's Manual
GE Information
994-0081-3.00-21
105
Chapter 5: Operating the D25
LED Indicators
Front Panel
Indicators
The front panel has three sets of LED indicators, providing a visual indication
of the operational status of the unit:
LED
Color and Function
OPERATION
POWER
Green: on when power supply is operating normally.
RUN
Green: on when the D25 microprocessor system is
running. With a Type III WESDAC board the
RUN
LED
flashes at about 2 Hz, depending on processor
load.
COMMUNICATIONS
IED1 (COM 3)
IED2 (COM 4)
XCOM 1 (COM 5)
XCOM 2 (COM 6)
Red: on to indicate whether and when each port is
transmitting (TX) and/or receiving (RX):
Note
: XCOM indicators light
only
if card is
installed.
CONTROLS
LOCAL
REMOTE
The D25 Plant I/O Subsystem monitors the state of
the
CONTROLS
switch
only if
a control board is
installed.
If the
CONTROLS
switch is in the
REMOTE
position at startup:
•
green
LOCAL
LED lights immediately when the D25
is turned on.
•
green LED remains on until the D25’s internal POST
diagnostics are complete.
•
if the diagnostics do not pass, the indicator remains
green.
After the D25 has started up normally, the indicator
should follow the state of the
CONTROLS
switch:
•
if the switch is moved to the
REMOTE
position, the
red
REMOTE
LED lights after a momentary delay,
and the
LOCAL
LED turns off.
Local/Remote LEDs flashing indicate one or more active
sealed-in outputs (only if a D25 High Current KE Control
Output Module is present in the D25)
Summary of Contents for D25
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