ABB RELION REX640 Technical Manual page 178

Protection and control

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Table of Contents

Basic functions

linear curves. The knee points are defined by parameters

Value knee point 1-4 .

Example 1: VMMXU1 to mA output

Figure 73: Application example for VMMXU1 to mA output

The measured phase-to-phase voltage from VMMXU is connected to

set to "18" (kV). The input unit is not significant as long as the value range is

in the same scale.

Value maximum 20

Value minimum

Figure 74: Scaling of AO_VAL to mA output

Example 2: mA input to mA output

Figure 75: Application example for mA input to mA output

HIGH_WARNING

Input maximum value is set to "24" (kV) and Input minimum value is

Value maximum is set to "20" mA and Value minimum to

Num of knee points is set to "0".

Input minimum

1MRS759142 F

Input knee point 1-4 and

Input maximum

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