Areva MiCOM P341, Operation Manual

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Operation Guide P341/EN O/B11
Introduction CHAPTER 1
MiCOM P341 Page 13/22
Note: *May vary according to relay type/model
3.6.2 Menu navigation and setting browsing
The menu can be browsed using the four arrow keys, following the structure shown in
Figure 4. Thus, starting at the default display the
8
key will display the first column
heading. To select the required column heading use the
P
and
6
keys. The setting
data contained in the column can then be viewed by using the
2
and
8
keys. It is possible to return to the column header either by holding the
[up arrow symbol] key down or by a single press of the clear key
0 .
It is only
possible to move across columns at the column heading level. To return to the
default display press the
8
key or the clear key
0
from any of the column
headings. It is not possible to go straight to the default display from within one of the
column cells using the auto-repeat facility of the
8
key, as the auto-repeat will stop
at the column heading. To move to the default display, the
8
key must be released
and pressed again.
3.6.3 Password entry
When entry of a password is required the following prompt will appear:
Enter Password
**** Level 1
Note: The password required to edit the setting is the prompt as shown
above
A flashing cursor will indicate which character field of the password may be changed.
Press the
8
and
2
keys to vary each character between A and Z. To move
between the character fields of the password, use the
4
and
6
keys. The password is
confirmed by pressing the enter key
5 .
The display will revert to ‘Enter Password’ if
an incorrect password is entered. At this point a message will be displayed indicating
whether a correct password has been entered and if so what level of access has been
unlocked. If this level is sufficient to edit the selected setting then the display will
return to the setting page to allow the edit to continue. If the correct level of
password has not been entered then the password prompt page will be returned to.
To escape from this prompt press the clear key
.
Alternatively, the password can
be entered using the ‘Password’ cell of the ‘System data’ column.
For the front panel user interface the password protected access will revert to the
default access level after a keypad inactivity time-out of 15 minutes. It is possible to
manually reset the password protection to the default level by moving to the
‘Password’ menu cell in the ‘System data’ column and pressing the clear key
instead of entering a password.
3.6.4 Reading and clearing of alarm messages and fault records
The presence of one or more alarm messages will be indicated by the default display
and by the yellow alarm LED flashing. The alarm messages can either be self-
resetting or latched, in which case they must be cleared manually. To view the alarm
messages press the read key
.
When all alarms have been viewed, but not
cleared, the alarm LED will change from flashing to constant illumination and the
latest fault record will be displayed (if there is one). To scroll through the pages of
this use the
key. When all pages of the fault record have been viewed, the
following prompt will appear: