Areva MiCOM P921 - Page 149

Technical Guide P92x/EN FT/E11
User Guide
MiCOM P921-P922-P923 Page 71/110
11.7 "AND LOGIC EQUATION" Menu
11.7.1 Description
Two logical gates (“AND”) are available in the MiCOM P921 and P922 relays and
four are available in the MiCOM P923.
In order to assign one information to one logic equation, please go to the relevant
cell corresponding to the selected information, press then the 5 key. Select the
equation (A or B) with the 6 and 4 keys. Press then the 2 and 8 to activate/
deactivate the information. Validate with the 5 key.
One information can be allocated to both equations simultaneously.
The available information that can be allocated to the logic equations are indicated
in the menu below.
11.7.2 MiCOM P921 and MiCOM P922 : common information
To gain access to the “AND LOGIC EQUAT” sub-menu from the default display,
press 2 once, 6 5 times(P921) or 6 times(P922 or P923), 2 once and 6 6 times.
AND LOGIC EQUAT
Heading of the “AND LOGIC EQUAT” sub-menu
V< : BA
00
Description : allocation of the instantaneous information “V<”
to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation
tV< : BA
00
Description : allocation of the time-delayed information “tV<”
to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation
V<< : BA
00
Description : allocation of the instantaneous information
“V<<” to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation
tV<< : BA
00
Description : allocation of the time-delayed information
“tV<<” to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation
V<<< : BA
00
Description : allocation of the instantaneous information
“V<<<” to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation
tV<<< : BA
00
Description : allocation of the time-delayed information
“tV<<<” to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation
V> : BA
00
Description : allocation of the instantaneous information “V>”
to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation
tV> : BA
00
Description : allocation of the time-delayed information “tV>”
to the logic equations (A and/or B)
Range : 0 or 1 for each selected equation