How To Switch Between Front And Rear Connectors; Mmi Operation Levels; Main Level; User Level - ABB REJ 527 Operator's Manual

1MRS 751055-MUM
3.1.7.
3.2.
3.2.1.
3.2.2.
3.2.2.1.
Directional or Non-Directional Earth-Fault Relay
Operator's Manual
• To enter a submenu, press the [
• Press the [C] button to return to idle mode.
• To navigate between these main levels in the submenus, use the [
Note that, in the menus, it is not possible to step from the last menu item over to the
first item with a press of the [
↑
use the [ ] button.

How to switch between front and rear connectors

The relay is provided with two serial connectors: the rear connector RS-485 and the
front optical PC-connector. The rear RS-485 is the default connector. To be able to
switch between the rear and front connectors you have to use the Front/Rear selec-
tor of the MMI:
1. Select "Communication" under the main menu group "Configuration".
2. Move to the currently used setting (Rear connection/Front connection) and press
the [E] button. The lower row starts to flash.
3. Select the desired setting with the [
firm the selection.
Note that after about 5 minutes' time-out the communication is switched to the rear
connector.
Main Menu
MEASUREMENTS
RECORDED DATA
SETTINGS
CONFIGURATION
INFO
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MMI operation levels

Main level

The main level of the MMI consists of a user level and a technical level. The user
level is for measurements and monitoring, whereas the technical level is used for
advanced protection relay setting and demands a password. In the factory default
settings the password is not active and the value is "999".

User level

Menu groups of the user level
The user level contains three menu groups:
→
] button; to exit press the [
↓
] key; to move backwards in the menu you have to
↑ ↓
] or [ ] key and press the [E] button to con-
Parameter Menu
Group Menu
CONFIGURATION
SPA-ADDRESS
CONFIGURATION
FUNCTION TEST/BI
COMMUNICATION
LANGUAGE
FREQUENCY
NOMINAL VOLTAGE
REJ 527
←
] button.
↑
] or [
Confirm
E
:xxx
BAUD RATE :x.x
COUNTER :xxx
Cancel
REAR CONNECTION
PASSWORD SPA :xxx C
PASSWORD MMI :xxx
↓
] button.
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