Functionality; Function Block; Signals; Settings - ABB RET650 Technical Manual

Section 14
Monitoring
14.13.2
14.13.3
14.13.4
14.13.5
488

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.

Function block

MVEXP
RANGE* HIGHHIGH
HIGH
NORMAL
LOW
LOWLOW
IEC09000215-1-en.vsd
IEC09000215 V1 EN
Figure 210: MVEXP function block

Signals

Table 393: MVEXP Input signals
Name Type
RANGE INTEGER
Table 394: MVEXP Output signals
Name Type
HIGHHIGH BOOLEAN
HIGH BOOLEAN
NORMAL BOOLEAN
LOW BOOLEAN
LOWLOW BOOLEAN

Settings

The function does not have any parameters available in Local HMI or Protection and
Control IED Manager (PCM600).
Default Description
0 Measured value range
Description
Measured value is above high-high limit
Measured value is between high and high-high limit
Measured value is between high and low limit
Measured value is between low and low-low limit
Measured value is below low-low limit
1MRK 504 135-UEN A
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