Press Clear To
Reset Alarms
3. To clear all alarm messages, press the Clear k
ey. To return to the display showing alarms or faults present,
and leave the alarms uncleared, press the Read key.
4. Depending on the password configuration settings, you may need to enter a password before the alarm
messages can be cleared.
5. When all alarms are cleared, the yellow alarm LED switches off. If the red LED was on, this will also be
switched off.
Note:
To speed up the procedure, you can enter the alarm viewer using the Read key and subsequently pressing the Clear key. This
goes straight to the fault record display. Press the Clear key again to move straight to the alarm reset prompt, then press the
Clear key again to clear all alarms.
3.7 MENU STRUCTURE
Settings, commands, records and measurements are stored in a local database inside the IED. When using the
Human Machine Inter
face (HMI) it is convenient to visualise the menu navigation system as a table. Each item in
the menu is known as a cell, which is accessed by reference to a column and row address. Each column and row is
assigned a 2-digit hexadecimal numbers, resulting in a unique 4-digit cell address for every cell in the database.
The main menu groups are allocated columns and the items within the groups are allocated rows, meaning a
particular item within a particular group is a cell.
Each column contains all related items, for example all of the disturbance recorder settings and records are in the
same column.
There are three types of cell:
● Settings: this is for parameters that can be set to different values
● Commands: this is for commands to be executed
● Data: this is for measurements and records to be viewed, which are not settable
Note:
Sometimes the term "Setting" is used generically to describe all of the three types.
The table below, provides an example of the menu structure:
SYSTEM DATA (Col 00) VIEW RECORDS (Col 01) MEASUREMENTS 1 (Col 02) …
Language (Row 01) "Select Event [0...n]" (Row 01) IA Magnitude (Row 01) …
Password (Row 02) Menu Cell Ref (Row 02) IA Phase Angle (Row 02) …
Sys Fn Links (Row 03) Time & Date (Row 03) IB Magnitude (Row 03) …
… … … …
It is convenient to specify all the settings in a single column, detailing the complete Courier address for each
setting. The abov
e table may therefore be represented as follows:
Setting Column Row Description
SYSTEM DATA 00 00 First Column definition
Language (Row 01) 00 01 First setting within first column
Password (Row 02) 00 02 Second setting within first column
Chapter 5 - Configuration P54A/B/C/E
82 P54xMED-TM-EN-1
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