Passwords; Technical Level; Menu System Of Parameters - ABB REJ 527 Operator's Manual

1MRS 751055-MUM
3.2.3.
3.2.4.
3.2.4.1.
Directional or Non-Directional Earth-Fault Relay
Operator's Manual
Table 3.2.2.6-1 Fault codes
Fault code
50, 59
51, 52, 53, 54, 56
55
131, 139, 195, 203, 222, 223
253
1)
May be corrected by formatting to factory setting.

Passwords

There are two passwords: one for the MMI and one for SPA communication.
The MMI password protects all user-changeable values from being changed by an
unauthorized person. The default value for the MMI password is "999" and for the
SPA password "001". With the default value "999" the MMI password is not active
and it is not required for altering parameter values.
The passwords can be changed but not read from a remote unit. The SPA password
is changed via the serial bus by entering first the current password in parameter
V160, and writing then a new password to parameter V161. The MMI password can
be changed via parameter V162. For changing the MMI password, see also section
3.2.4.3. Configuration.
As soon as the MMI password is changed from the default "999", the password will
be required for altering parameter values. Once the password is given, it will not be
required again until the MMI returns to idle state.
READY START TRIP
SETTINGS
000
PASSWORD :
C
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Technical level

Menu system of parameters

The interactive communication between the operator and the MMI is based on
menus. Press an arrow button to activate the Main Menu. Everyone has the access
to view all the parameters, even the MMI password if the default password is in use.
In case the password is changed from the default "999", it will remain hidden until
the valid MMI password is given.
The views are used for reading setting parameters, measured values, etc. The
parameters are divided into two main groups:
• SETTINGS
Type of fault
Faulty work memory
Faulty parameter memory
Faulty parameter memory
Internal reference voltage error
Error in measuring unit
REJ 527
1)
17