Alstom MiCOM P846, Technical Manual

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Settings P846/EN ST/D
MiCOM P846
(ST) 4-15
ST
Menu Text Default Setting Available Settings
Test Pattern 00000000000000000000000000000000
0 = Not Operated
1 = Operated
This cell is used to select the output relay contacts that will be tested when the ‘Contact
Test’ cell is set to ‘Apply Test’.
Contact Test No Operation
No Operation, Apply
Test, Remove Test
When the ‘Apply Test’ command in this cell is issued the contacts set for operation (set to
‘1’) in the ‘Test Pattern’ cell change state. After the test has been applied the command
text on the LCD will change to ‘No Operation’ and the contacts will remain in the Test State
until reset issuing the ‘Remove Test’ command. The command text on the LCD will again
revert to ‘No Operation’ after the ‘Remove Test’ command has been issued.
Note: When the ‘Test Mode’ cell is set to ‘Enabled’ the ‘Relay O/P Status’ cell does not
show the current status of the output relays and hence can not be used to confirm
operation of the output relays. Therefore it will be necessary to monitor the state
of each contact in turn.
Test LEDs No Operation
No Operation
Apply Test
When the ‘Apply Test’ command in this cell is issued the eighteen user-programmable
LEDs will illuminate for approximately 2 seconds before they extinguish and the command
text on the LCD reverts to ‘No Operation’.
DDB 31 - 0 00000000000000000000001000000000
Displays the status of DDB signals 0-31.
DDB 1022 - 992 00000000000000000000000000000000
Displays the status of DDB signals 1022 – 992.
1.3.8 Opto configuration
Setting Range
Menu Text Default Setting
Min. Max.
Step Size
OPTO CONFIG.
Global Nominal V 24 - 27
24 - 27, 30 - 34, 48 - 54, 110 - 125,
220 - 250, Custom
Sets the nominal battery voltage for all opto inputs by selecting one of the five standard
ratings in the Global Nominal V settings. If Custom is selected then each opto input can
individually be set to a nominal voltage value.
Opto Filter Cntl. 1111111111111111
Selects each input with a pre-set filter of ½ cycle that renders the input immune to induced
noise on the wiring.