ABB ret650, Technical Manual

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14.13.2 Functionality
The current and voltage measurements functions (CVMMXN, CMMXU, VMMXU
and VNMMXU), current and voltage sequence measurement functions (CMSQI and
VMSQI) and IEC 61850 generic communication I/O functions (MVGGIO) are
provided with measurement supervision functionality. All measured values can be
supervised with four settable limits: low-low limit, low limit, high limit and high-high
limit. The measure value expander block MVEXP has been introduced to enable
translating the integer output signal from the measuring functions to 5 binary signals:
below low-low limit, below low limit, normal, above high limit or above high-high
limit. The output signals can be used as conditions in the configurable logic or for
alarming purpose.
14.13.3 Function block
MVEXP
RANGE* HIGHHIGH
HIGH
NORMAL
LOW
LOWLOW
IEC09000215-1-en.vsd
IEC09000215 V1 EN
Figure 210: MVEXP function block
14.13.4 Signals
Table 393: MVEXP Input signals
Name Type Default Description
RANGE INTEGER 0 Measured value range
Table 394: MVEXP Output signals
Name Type Description
HIGHHIGH BOOLEAN Measured value is above high-high limit
HIGH BOOLEAN Measured value is between high and high-high limit
NORMAL BOOLEAN Measured value is between high and low limit
LOW BOOLEAN Measured value is between low and low-low limit
LOWLOW BOOLEAN Measured value is below low-low limit
14.13.5 Settings
The function does not have any parameters available in Local HMI or Protection and
Control IED Manager (PCM600).
Section 14
1MRK 504 135-UEN A
Monitoring
488
Technical manual