Basler BE1-11m - Page 90

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Inverse Overcurrent (51) Protection BE1-11m
Block Logic Input
The Block input provides logic-supervision control of the element. When true, the Block input disables the
element by forcing the Trip and Pickup outputs to logic 0 and resetting the element timer. Connect the
element Block input to the desired logic in BESTlogicPlus. When the element is initially selected from the
Elements view, the default condition of the Block input is a logic 0.
Logic Connections
Inverse overcurrent element logic connections are made on the BESTlogicPlus screen in
BESTCOMSPlus. The inverse overcurrent element logic block is illustrated in Figure 14-3. Logic inputs
and outputs are summarized in Table 14-3.
Figure 14-3. Inverse Overcurrent Element Logic Block
Table 14-3. Logic Inputs and Outputs
Name
Logic Function
Purpose
Block
Input
Disables the 51 function when true
Trip
Output
True when the 51 element is in a trip condition
Pickup
Output
True when the 51 element is in a pickup condition
Operational Settings
Inverse overcurrent element operational settings are configured on the Inverse Overcurrent (51) settings
screen (Figure 14-4) in BESTCOMSPlus.