Logic Connections; Operational Settings - Basler BE1-11g Instruction Manual

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Logic Connections

Frequency element logic connections are made on the BESTlogicPlus screen in BESTCOMSPlus. The
frequency element logic block is illustrated in Figure 58. Logic inputs and outputs are summarized in
Table 30.
Name Logic Function
Block
Trip
Pickup

Operational Settings

Frequency element operational settings are configured on the Frequency settings screen (Figure 59) in
BESTCOMSPlus. Setting ranges and defaults are summarized in Table 31.
Setting
Mode
Source
Pickup
Time Delay
Frequency (81) Protection
Figure 58. Frequency Element Logic Block
Table 30. Logic Inputs and Outputs
Input Disables the 81 function when true
Output True when the 81 element is in a trip condition
Output True when the 81 element is in a pickup condition
Figure 59. Frequency Settings Screen
Table 31. Operational Settings
Range
Disabled, Over, Under,
Rate of Change,
Positive Rate of Change,
or Negative Rate of Change
Phase VT or Aux VT
0 or 0.2 to 20 for ROC mode
0 or 15 to 110 for O/U mode
0 to 600,000
9424200994 Rev U
Purpose
Increment Unit of Measure
n/a n/a
n/a n/a
hertz/sec (ROC)
0.01
hertz (O/U)
varies milliseconds
Default
Disabled
Phase VT
0
0
BE1-11g