Basler BE1-CDS220, Instruction Manual

Page: 98 / 476

4-32 Protection and Control BE1-CDS220
Figure 4-28. BESTlogic Function Element Screen, 50BF
At the top center of the BESTlogic Function Element Screen is a pull-down menu labeled Logic . This
menu allows viewing of the BESTlogic settings for each preprogrammed logic scheme. A custom logic
scheme must be created and selected in the
Logic pull-down menu at the top of the screen before
BESTlogic settings can be changed. See Section 7, BESTlogic Programmable Logic .
Enable the breaker failure function by selecting its mode of operation from the Mode pull-down menu. To
connect the elements inputs, select the button for the corresponding input in the BESTlogic Function
Element Screen. The BESTlogic Expression Builder screen will open. Select the expression type to be
used. Then, select the BESTlogic variable, or series of variables to be connected to the input. Select
Save when finished to return to the BESTlogic Function Element Screen. For more details on the
BESTlogic Expression Builder
, see Section 7,
BESTlogic Programmable Logic
. Select
Done
when the
settings have been completely edited.
Table 4-17 summarizes the BESTlogic settings for Breaker Failure.
Table 4-17. BESTlogic Settings for Breaker Failure
Function Range/Purpose Default
Mode
0 = Disable
1 = CT Input Circuit 1
2 = CT Input Circuit 2
0
INI
Logic expression that starts the breaker failure timer when TRUE and current is
flowing in the assigned input circuit.
0
BLK Logic expression that disables function when TRUE.
0
Example 1. Make the following changes to the Breaker Failure element. Refer to Figure 4-28.
Mode : CT Input 1
INI : IN3
BLK : IN6