Rockwell Automation 865 Differential Protection Relay - Manual (Page 31)

Local Panel User Interface 2-19
865-UM001A-EN-P – July 2009
Forced Control (Force)
In some menus it is possible to switch a signal on and off by using
a force function. This feature can be used, for instance, for testing
a certain function. The force function can be activated as follows:
1. Move to the setting state of the desired function, for example DO
(see section “Configuration and Parameter Setting”).
2. Select the Force function (the background color of the force text
is black).
Figure 2.18 – Selecting Force Function
3. Push the ENTER key.
4. Push the UP or DOWN key to change the "OFF" text to "ON",
that is, to activate the Force function.
5. Push the ENTER key to return to the selection list. Choose the
signal to be controlled by force with the UP and DOWN keys,
for instance the T1 signal.
6. Push the ENTER key to confirm the selection. Signal T1 can
now be controlled by force.
7. Push the UP or DOWN key to change the selection from "0" (not
alert) to "1" (alert) or vice versa.
8. Push the ENTER key to execute the forced control operation of
the selected function, e.g., making the output relay of T1 to pick up.
9. Repeat the steps 7 and 8 to alternate between the on and off state
of the function.
10. Repeat the steps 1...4 to exit the Force function.
11. Push the CANCEL key to return to the main menu.
NOTE: All the interlockings and blockings are bypassed when
the force control is used.