Rockwell Automation 865 Differential Protection Relay - Manual (Page 24)

2-12
Local Panel User Interface
865-UM001A-EN-P – July 2009
Setting Groups
Most of the protection functions of the relay have two setting groups.
These groups are useful for example when the network topology is
changed frequently. The active group can be changed by a digital input,
through remote communication or locally by using the local panel.
The active setting group of each protection function can be selected
separately. Figure 2.11 shows an example where the changing of the
I> setting group is handled with digital input one (SGrpDI). If the
digital input is TRUE, the active setting group is group two and
correspondingly, the active group is group one, if the digital input is
FALSE. If no digital input is selected (SGrpDI = -), the active group
can be selected by changing the value of the parameter SetGrp.
Figure 2.11 – Example of Protection Submenu with Setting Group
The changing of the setting parameters can be done easily. When the
desired submenu has been found (with the arrow keys), press the
ENTER key to select the submenu. Now the selected setting group is
indicated in the down-left corner of the display (See Figure 2.12).
Set1 is setting group one and Set2 is setting group two. When the
needed changes, to the selected setting group, have been done, press
the LEFT or the RIGHT key to select another group (the LEFT key
is used when the active setting group is 2 and the RIGHT key is used
when the active setting group is 1).
Figure 2.12 – Example of I> Setting Submenu
Local Panel Operations
(cont.)