Areva MiCOM P921 - Page 159

Technical Guide P92x/EN FT/E11
User Guide
MiCOM P921-P922-P923 Page 81/110
11.9 "INPUTS" Menu
11.9.1 Description
This sub-menu makes it possible to allocate each logic input to one specified
function.
It is possible to configure the operation of the digital input, either on falling edge/low
level,or on rising edge/high level. Falling edge or low level (idem for rising edge or
high level) depends on the application of the digital inputs.
ONLY a digital input configured "CHANG SET" can operate either on edge or on
level.
List of available functions :
Label Significance of the label Operation of
digital input
NONE No allocation
UNLATCH Unlatching of the latched output contacts on level
52a Interlock of the CB (open if CB open) on level
52b Interlock of the CB (closed if CB open) on level
CB FAIL CB Failure information (external information, for example :
SF6 fault)
on level
AUX 1 Allocation of the input to an external auxiliary information AUX1 on level
AUX 2 Allocation of the input to an external auxiliary information AUX2 on level
BLK LOG1 Allocation of the input to the “blocking logic 1” information :
if the input is energised, the selected stages in the
“BLOCKING LOG1t” menu will be blocked.
on level
BLK LOG2 Allocation of the input to the “blocking logic 2” information :
if the input is energised, the selected stages in the
“BLOCKING LOG2t” menu will be blocked.
on level
CHANG SET Allocation of the input in order to change the active setting
group : each transition of the input will be taken into account
(default setting group = 1).
on level or on
edge
STRT DIST External start of the disturbance recorder. on edge
NOTA :
MiCOM P922 and P923
In order to allocate one function to one logic input, please go to the relevant cell
corresponding to the selected input, press then the 5 key. Press then the 2 and 8
to activate/deactivate the information. Validate with the 5 key.