1MRS 752179-MUM
Earth-Fault Relay
Operator’s Manual
REJ 521
17
3.2.3.2. How to change settings
The actual settings are found in the first submenu and are not editable. These in turn
consist of the settings of either group 1 or 2, depending on which one has been
selected to be active. The settings of groups 1 and 2 can be edited in the setting
mode; refer to the instructions later in this section.
Both setting groups have their related registers. By switching between setting groups
1 and 2, a whole group of settings can be changed at the same time. You can switch
between these setting groups in three different ways:
1. by selecting “GROUP 1/GROUP 2” under the main menu group “SETTINGS”.
2. with a binary input signal, provided that switchgroup SGB1/4 has been set to 1.
3. with parameter V150 via the serial communication bus
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When a large number of settings are to be altered, e.g. during commissioning of
relay systems, it is recommended that a personal computer provided with the
necessary software should be used. If not available, or when only a few settings are
to be altered, proceed as follows:
1. Select the main menu group “SETTINGS” and further “PROTECT.STAGES”.
Press the [
→] button to enter the first submenu group.
2. Use the arrow button [
↓] to select the parameter to be changed and press the [→]
button.
3. To enter setting group 2, press the [
↓] button. The active setting group is
indicated by an asterisk “*”.
4. Enter the setting mode by pressing the [E] button. If the default password has
been replaced, the text “PASSWORD” will appear on the display demanding a
password. If the default password “999” is still valid, no password will be
required.
5. The first digit or the setting value of the parameter to be edited will start to flash.
Use the [
→] and [←] buttons to move the cursor and the [↑] and [↓] buttons to
increase or decrease the number.
6. To store a new value and return the display to the view mode, press the [E]
button. If the parameter is of a numerical kind, the display will confirm the
storage by once flashing “---” on the display.
7. To exit the setting mode without saving the changes, press the [C] button once
before confirming and the display will be returned to the view mode.
8. Press the [C] button once more and the display will be returned to the idle mode.
Gr1_Gr2_521
E
C
I0> In:x.xx
Submenu
Parameter Menu
Confirm
Cancel
SETTINGS
GRP 2 I0>:x.xx
* GRP 1 I0>:x.xx
SETTINGS
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