User Guide
P12x/EN FT/A96
MiCOM P121/P122/P123
Page 9/72
3. PASSWORD
3.1
Password protection
A password is required for relay settings, especially when changing the various thresholds,
time delays, communication parameters, allocation of inputs and outputs relays.
The password consists of four capital characters. When leaving factory, the password is set
to AAAA. The user can define his own combination of four characters.
Should the password be lost or forgotten, the modification of the stored parameters is
blocked. It is then necessary to contact the manufacturer or his representative and a stand-
by password specific to the relay may be obtained.
The programming mode is indicated with the letter "P" on the right hand side of the display
on each menu heading. The letter
"P"
remains present as long as the password is active
(
5 minutes
if there is no action on the keypad).
3.1.1 Password
entry
The input of the password is requested as soon as a modification of a parameter is made for
any one of the six/eight menus and the submenus. The user enters each one of the 4
characters and then validates the entire password with
.
After 5 seconds, the display returns to the point of the preceding menu.
If no key is pressed inside of 5 minutes, the password is deactivated. A new password
request is associated with any subsequent parameter modification.
3.1.2
Changing the password
To change an active password, go to the OP. PARAMETERS menu and then to the
Password submenu. Enter the current password and validate it. Then press
and enter the
new password character by character and validate the new password using
.
The message NEW PASSWORD OK is displayed to indicate that the new password has
been accepted.
3.1.3
Change of setting invalidation
The procedure to modify a setting is described in the following sections of this manual.
If there is a need to get back to the old setting push key
before validating the setting
change. The following message will then appear on the LCD for a few seconds and the old
setting will remain unchanged.
UPGRADE
CANCEL
Summary of Contents for MiCom P120
Page 1: ...MiCOM P120 P121 P122 P123 Overcurrent Relays Version 11 Technical Guide P12X EN T A96...
Page 2: ......
Page 4: ...P12x EN T A96 Technical Guide Contents Page 2 2 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 13: ...Introduction P12x EN IT A96 MiCOM P120 P121 P122 P123 INTRODUCTION...
Page 14: ......
Page 16: ...P12x EN IT A96 Introduction Page 2 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 22: ...P12x EN IT A96 Introduction Page 8 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 24: ......
Page 35: ...User Guide P12x EN FT A96 MiCOM P120 P121 P122 P123 USER GUIDE...
Page 36: ......
Page 40: ...P12x EN FT A96 User Guide Page 4 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 108: ...P12x EN FT A96 User Guide Page 72 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 109: ...Menu Content Tables P12x EN HI A96 MiCOM P120 P121 P122 P123 MENU CONTENT TABLES...
Page 110: ......
Page 112: ...P12x EN HI A96 Menu Content Tables Page 2 68 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 180: ......
Page 221: ...Application Guide P12x EN AP A96 MiCOM P120 P121 P122 P123 APPLICATION GUIDE...
Page 222: ......
Page 226: ...P12x EN AP A96 Application Guide Page 4 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 302: ...P12x EN AP A96 Application Guide Page 80 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 304: ......
Page 306: ......
Page 368: ......
Page 370: ...P12x EN CT A96 Communications COURIER DATABASE Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 514: ...P12x EN CT A96 Communications COURIER DATABASE Page 146 248 MiCOM P120 P121 P122 P123...
Page 516: ......
Page 518: ...P12x EN CT A96 Communications IIEC 60870 5 103 Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 536: ...P12x EN CT A96 Communications IEC 60870 5 103 Page 20 248 MiCOM P120 P121 P122 P123...
Page 538: ......
Page 540: ...P12x EN CT A96 Communications DNP 3 0 Database Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 554: ......
Page 573: ...Connection Diagrams P12x EN CO A96 MiCOM P120 P121 P122 P123 CONNECTION DIAGRAMS...
Page 574: ......
Page 580: ......
Page 582: ...P12x EN RS A96 Commissioning Test Record Sheets Page 2 60 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 642: ......
Page 667: ......