Inhibit level, Element blocking, Logic connections – Basler Electric BE1-11m User Manual

Page 66: Operational settings

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9424200996 Rev L

Inhibit Level

The Inhibit Level setting prevents undesired undercurrent tripping on de-energized circuits and during
motor startup. Instantaneous undercurrent element operation is disabled when any phase is below the
inhibit threshold.

Element Blocking

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

Instantaneous undercurrent element logic connections are made on the BESTlogicPlus screen in
BESTCOMSPlus. The instantaneous undercurrent element logic block is illustrated in Figure 41. Logic
inputs and outputs are summarized in Table 16.

Figure 40. Instantaneous Undercurrent Element Logic Block

Table 16. Logic Inputs and Outputs

Name

Logic Function

Purpose

Block

Input

Disables the 37 function when true

Trip

Output

True when the 37 element is in trip condition

Pickup

Output

True when the 37 element is in pickup condition

Operational Settings

Instantaneous undercurrent element operational settings are configured on the Instantaneous
Undercurrent (37) settings screen (Figure 41) in BESTCOMSPlus. Setting ranges and defaults are
summarized in Table 17.

Figure 41. Instantaneous Undercurrent Settings Screen

Instantaneous Undercurrent (37) Protection

BE1-11m

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