Alstom MiCOM P846, Technical Manual

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Commissioning P846/EN CM/D
MiCOM P846
(CM) 10-7
CM
3. SETTING FAMILIARIZATION
When commissioning a P846 relay for the first time, sufficient time should be allowed to
become familiar with the method by which the settings are applied.
The Getting Started section (P846/EN GS) contains a detailed description of the menu
structure of P846 relays.
With the secondary front cover in place all keys except the key are accessible. All menu
cells can be read. LEDs and alarms can be reset. However, no protection or configuration
settings can be changed, or fault and event records cleared.
Removing the secondary front cover allows access to all keys so that settings can be
changed, LEDs and alarms reset, and fault and event records cleared. However, menu cells
that have access levels higher than the default level will require the appropriate password to
be entered before changes can be made.
Alternatively, if a portable PC is available together with suitable setting software (such as
S1), the menu can be viewed a page at a time to display a full column of data and text. This
PC software also allows settings to be entered more easily, saved to a file on disk for future
reference or printed to produce a setting record. Refer to the PC software user manual for
details. If the software is being used for the first time, allow sufficient time to become familiar
with its operation.