pag. 18
MDE/C133 2561 001
MX3IPG2A
b) By pressing the key
ð
you enter the sub-menu that displays
the LED allocation. The following messages will be displayed:
[I> START]
[LED L..3..6.8]
the first line displays the function that is associated with the
LED's listed in the second line.
By pressing the keys
ò
or
ñ
, the sub-menu is vertically scrolled.
The functions that can be associated with the LED's are:
delayed start of first underresistance threshold
R< START
first underresistance threshold trip
R< TRIP
delayed start of sec. underresistance threshold R<< START
second underresistance threshold trip
R<< TRIP
delayed start of injected overcurrent threshold
I
~
> START
alternating overcurrent threshold trip
I
~
> TRIP
undervoltage (diagnostics) threshold trip
U
~
< TRIP
overvoltage (diagnostics) threshold trip
U
~
> TRIP
delayed start of first direct undervoltage thresholdU-< START
first direct undervoltage threshold trip
U-< TRIP
delayed start of sec. direct undervoltage thresholdU-<< START
sec. direct undervoltage threshold trip
U-<< TRIP
delayed start of first direct overvoltage threshold U-> START
first direct overvoltage threshold trip
U-> TRIP
delayed start of sec. direct overvoltage thresholdU->> START
direct overvoltage threshold trip
U->> TRIP
timer tX1 overtime
t_X1 TRIP
timer tX2 overtime
t_X2 TRIP
timer tX3 overtime
t_X3 TRIP
first digital input fed
IN DIG 1
second digital input fed
IN DIG 2
third digital input fed
IN DIG 3
It is furthermore possible to display the LED's that bear the
following settings:
bistable operation
MEMOR
c) By pressing the key
ï
anywhere in the sub-menu, you go
back to the main reading menu:
[ LED ]
[ ]
6.1.12 Viewing relay data
a) Press
ò
or
ñ
until the display shows:
[ RELAY DATA ]
[ ]
b) By pressing the key
ð
you enter a sub-menu where the
protection model and the software release are displayed:
[MX3IPG2A ]
[Soft Rel. 1.00]
c) By pressing the key
ò
once again, the second line will display
the alphanumeric identification code that the user gave to the
device, for instance:
[PLANT IDENTIFIER]
[CELL No. 17bis ]
d) By pressing the key
ï
anywhere in the sub-menu, you go
back to the main reading menu:
[ RELAY DATA ]
[ ]
6.1.13 Diagnostic display
1) Fault location
a) Press the key
ò
or
ñ
until the following message is
displayed:
[ DIAGNOSTIC ]
[ ]
In the presence of VITAL FAULTS, the device automatically
displays the window, without needing to enter the diagnostic
menu.
b) By pressing the key
ð
you enter a sub-menu that displays
the operating state of the relay. The display will show:
[LAST SETTING ]
[DD/MM/YY hh:mm]
the second line displays the day, the month, the year, the time
and the minutes of the time when last change was made to the
settings.
c) By pressing the key
ò
once again, if the device has not
detected any failure, the following message will be displayed:
[ RUNNING ]
[ ]
If NON-VITAL FAULTS are detected, the following message will
be displayed:
[FAULT ]
[ABCDE.....KL ]
whereas, if VITAL FAULTS are detected, the <!> characters will
be displayed, too:
[FAULT <!>]
[.....FGHIJ... ]
The second line displays one or more fault identification
codes.
The following table provides the fault codes and the corre-
sponding fault description:
Code
fault description
A
X1 relay coil interrupted or related driver
B
X2 relay coil interrupted or related driver
C
X3 relay coil interrupted or related driver
D
X4 relay coil interrupted or related driver
E
X5 relay coil interrupted or related driver
F
internal feeder failure
G
EEPROM failure
H
Internal RAM failure
I
External RAM failure
J
Analogue to Digital converter
K
communication board failure or enabled but
not configured
L
internal clock failure
If jumper S6 (see fig.2) that enables the communication board
is connected when the board is not present, the K code shows
up, as if a failure were detected in the board.
d) As far as the NON-VITAL FAULTS are concerned, by pressing
the key
ï
anywhere in the sub-menu you go back to the main
display menu:
[ DIAGNOSTIC ]
[ ]