P12y/EN FT/D32
User Guide
Page 4/86
MiCOM P125/P126 & P127
2. PASSWORD
2.1 Password
Protection
Password protection is applicable to most of the relay settings, especially to the selection of
the various alarm thresholds, trip thresholds, communication parameters, allocation of logic
inputs and outputs.
The password consists of four capital characters. When leaving the factory, the password is
set to AAAA. The user can define any combination of four characters.
Should the password be lost or forgotten, modification of the stored parameters is blocked. It
is then necessary to contact the manufacturer or his agent and a stand-by password specific
to the relay concerned 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).
2.2 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 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.
2.3
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. 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.
2.4
Change of Setting Invalidation
The procedure to modify a setting is shown in the next part of this document.
If during this action it occurs the need to get back to the old setting it is necessary push the
&
key
before validating the setting change
. After this action the following message will
appear on the LCD for some seconds and the old setting will be maintained.
UPGRADE
CANCEL
2.5
Displays of Alarm & Warning Messages
Alarm messages are displayed directly on the front panel LCD. They have priority over the
default current value. As soon as an alarm situation is detected by the relay (threshold
crossing for example), the associated message is displayed on the MiCOM relay front panel
LCD and the LED Alarm (LED 2) lights up.
The alarm and warning messages are classed as follows:
Alarm messages generated by the electrical power network.
Warning messages caused by hardware or software faults from the relay.
Summary of Contents for MiCOM P125
Page 1: ...MiCOM P125 P126 P127 Directional Non directional Relay Technical Guide P12Y EN T E32...
Page 2: ......
Page 4: ...P12y EN T E32 Technical Guide Page 2 2 MiCOM P125 P126 P127 BLANK PAGE...
Page 5: ...Pxxxx EN SS B11 SAFETY SECTION...
Page 6: ......
Page 8: ...Pxxxx EN SS B11 Page 2 10 Safety Section BLANK PAGE...
Page 16: ...Pxxxx EN SS B11 Page 10 10 Safety Section BLANK PAGE...
Page 17: ...Getting Started P12y EN GS D32 MiCOM P125 P126 P127 GETTING STARTED...
Page 18: ......
Page 66: ...P12y EN GS D32 Getting Started Page 48 48 MiCOM P125 P126 P127 BLANK PAGE...
Page 68: ......
Page 79: ...User Guide P12y EN FT D32 MiCOM P125 P126 P127 USER GUIDE...
Page 80: ......
Page 166: ...P12y EN FT D32 User Guide Page 86 86 MiCOM P125 P126 P127 BLANK PAGE...
Page 167: ...Technical Data P12y EN TD D32 MiCOM P125 P126 P127 TECHNICAL DATA AND CHARACTERISTIC CURVES...
Page 168: ......
Page 197: ...Application Guide P12y EN AP D32 MiCOM P125 P126 P127 APPLICATION GUIDE...
Page 198: ......
Page 202: ...P12y EN AP D32 Application Guide Page 4 74 MiCOM P125 P126 P127 BLANK PAGE...
Page 274: ......
Page 298: ...P12y EN CM C22 Commissioning and Maintenance Page 24 24 MiCOM P125 P126 P127 BLANK PAGE...
Page 300: ......
Page 302: ...P12y EN CO C22 Connections and Wiring Diagrams Page 2 10 MiCOM P125 P126 P127 BLANK PAGE...
Page 310: ...P12y EN CO C22 Connections and Wiring Diagrams Page 10 10 MiCOM P125 P126 P127 BLANK PAGE...
Page 312: ......
Page 360: ...P12y EN RS D32 Commissioning Test and Record Sheet Page 48 48 MiCOM P125 P126 P127 BLANK PAGE...
Page 361: ......