Alstom MiCOM P846, Technical Manual

Page: 75 / 298

Settings P846/EN ST/D
MiCOM P846
(ST) 4-17
ST
1.3.10 Control input labels
Menu Text Default Setting Setting Range Step Size
CTRL I/P LABELS
Control Input 1 Control Input 1 16 Character Text
Setting to change the text associated with each individual control input. This text will be
displayed when a control input is accessed by the hotkey menu, or it can be displayed in
the programmable scheme logic.
Control Input 2 to 32
Control Input
2 to 32
16 Character Text
Setting to change the text associated with each individual control input. This text will be
displayed when a control input is accessed by the hotkey menu, or it can be displayed in
the programmable scheme logic.
1.4 Disturbance recorder settings
The disturbance recorder settings include the record duration and trigger position, selection
of analog and digital signals to record, and the signal sources that trigger the recording.
The "DISTURBANCE RECORDER" menu column is shown in the following table:
Setting Range
Menu Text Default Setting
Min. Max.
Step Size
DISTURB. RECORDER
Duration 1.5 s 0.1 s 10.5 s 0.01 s
This sets the overall recording time.
Trigger Position 33.3% 0 100% 0.1%
This sets the trigger point as a percentage of the duration. For example, the default
settings show that the overall recording time is set to 1.5 s with the trigger point being at
33.3% of this, giving 0.5 s pre-fault and 1s post fault recording times.
Trigger Mode Single Single or Extended
If set to single mode, if a further trigger occurs whilst a recording is taking place, the
recorder will ignore the trigger. However, if this has been set to "Extended", the post
trigger timer will be reset to zero, thereby extending the recording time.
Analog. Channel 1 IA
Any of Relay’s measured or calculated
signals
Selects any available analog input to be assigned to this channel.
Analog. Channel 2 IB As above
Analog. Channel 3 IC As above
Analog. Channel 4
Ι
N
As above
Analog. Channel 5 VA As above
Analog. Channel 6 VB As above
Analog. Channel 7 VC As above
Analog. Channel 8
Ι
N2 As above
Digital Inputs 1 to 32
Output R1 to R16
and Opto’s L1 to
L16
Any of 32 O/P Contacts or Any of 24 Opto
Inputs or Internal Digital Signals
The digital channels may be mapped to any of the opto isolated inputs or output contacts,
in addition to a number of internal relay digital signals, such as protection starts, LEDs etc.