Passwords - ABB REJ 521 Operator's Manual

1MRS 752179-MUM
3.1.8.
Earth-Fault Relay
Operator's Manual
1. Select "COMMUNICATION" under the main menu group
"CONFIGURATION".
2. Move the cursor to the currently used setting ("REAR CONNECTION/FRONT
CONNECTION") and press the [E] button. The lower line will start to flash.
3. Select the desired setting using the [
confirm the selection.
When the front connection has been selected but there has not been any
communication for approximately five minutes, the rear connection will
automatically be activated. To disable this function, press the [
simultaneously when applying the auxiliary voltage to the relay.
Main Menu
MEASUREMENTS
RECORDED DATA
SETTINGS
CONFIGURATION
INFO
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Passwords

There are two passwords: one for the HMI and one for SPA bus communication.
The HMI password protects all user-changeable values from being changed by an
unauthorized person. The HMI password protection function will remain inactive
until the default password has been replaced. The default HMI password is "999"
and the default SPA password "001".
The passwords can be changed but not read from a remote unit. The SPA password
can be changed via the serial bus by first entering the currently valid password into
parameter V160 and then entering the new password into parameter V161. The HMI
password can be changed via parameter V162. For changing the passwords via the
HMI, see also section Configuration.
As soon as the default HMI password has been replaced, the password will be
required for altering parameter values. Once the valid password has been given, the
HMI will remain in the setting mode until returned to the idle mode.
↑ ↓
] or [ ] button and press the [E] button to
Group Menu
CONFIGURATION
FUNCTION TEST/BI
COMMUNICATION
LANGUAGE
FREQUENCY
REJ 521
← →
] and [ ] buttons
Parameter Menu
CONFIGURATION
Confirm
PROTOCOL:SPA
IEC 103 SET :x
UNIT ADDRESS :xxx
BAUD RATE :x.x
Cancel
COUNTER :xxx
REAR CONNECTION
PASSWORD SPA :xxx
PASSWORD HMI :xxx
E
C
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