Areva MiCOM P921, Technical Manual

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Technical Guide P92x/EN GS/E11
Getting Started
MiCOM P921-P922-P923 Page 11/18
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11. ACCESS TO THE MENU
Before using your MiCOM P921-P922 and P923, some settings have to be checked
or modified.
Lift top cover and lower down bottom cover in order to remove the transparent front
cover. When the keypad is exposed, it provides full access to the menu options of the
relay, with the information displayed on the LCD.
11.1 Password protection
Password protection is applicable to the relay settings, especially to the selection of
the various thresholds, time delays, communication parameters, allocation of inputs
and outputs relays.
The password consists of four alphabetical capital characters. When leaving the
factory, the password is AAAA. The user can define his own combination of
characters.
Should the password be lost or forgotten, the modification of the stored parameters
of the relay is prohibited. It is then necessary to contact the manufacturer or his agent
by specifying the serial number of the relay so as to receive a stand-by password
specific to the relay concerned.
NOTA : The programming mode is indicated with the "P" letter on the
right hand side of the display on each heading menu. The "P"
letter remains present as long as the password is active (5
minutes if there is no action on the keypad).
11.1.1 Password entry
When entry of a password is required the following prompt will appear :
PASSWORD =
AAAA
A flashing cursor will indicate which character field of the password may be changed.
Press the 2 and 8 keys to vary each character between A and Z. To move between
the character fields of the password, use 6 and 4 keys.
The password is confirmed by pressing the enter key 5 . The display will indicated if
an incorrect password is entered. If a correct password is entered the following
message will appear :
Password OK
Alternatively, the password can be entered using the "Password" cell of the
"OP. PARAMETERS" menu.
11.2 System Frequency
Press
2
6 times, the default system frequency appears on the LCD.
Change the setting by pressing either the 2 key or the 8 key. To validate the new
value, press the enter key 5 .