ABB REF 54 Series Technical Reference Manual, General

108
1MRS750527-MUM
Feeder Terminal
Technical Reference Manual, General
REF 54_
Function blocks
• Function block revision added (uploading of the function block list to CAP 505).
• Measurement function blocks: outputs indicating the status of warning and alarm
limits added.
• Under- and overvoltage protection function blocks UV3_ and OV3_:
• Phase-selective start outputs added.
• Control setting parameter “Oper. hysteresis” added for adjusting the level of a
comparator (for more information, refer to the CD-ROM “Technical
Descriptions of Functions”).
• EVENT230 function block: input interface changed.
• Changes to input names in the following function blocks: UV3Low, UV3High,
OV3Low, OV3High, MEVO3A, CMVO3.
• MEPE7, the function block for power and energy measurement:
• Events for energy (E), apparent power (S), and cos ϕ added.
• Time-based delta event sending added.
• The SCVCSt_ function block is bypassed when it is in “Not in use” mode.
Table 8.3.1-1 New protection functions
Function Description
CUB1Cap Three-phase current unbalance protection for shunt capacitor banks
OL3Cap Three-phase overload protection for shunt capacitor banks
PSV3St1 Phase-sequence voltage protection, stage 1
PSV3St2 Phase-sequence voltage protection, stage 2
MotStart Three-phase start-up supervision for motors
TOL3Dev Three-phase thermal overload protection for devices
Table 8.3.1-2 New measurement functions
Function Description
MEAI1 General measurement 1 / analog input on RTD/analog module
MEAI2 General measurement 2 / analog input on RTD/analog module
...
MEAI8 General measurement 8 / analog input on RTD/analog module
MEAO1 Analog output 1 on RTD/analog module
MEAO2 Analog output 2 on RTD/analog module
MEAO3 Analog output 3 on RTD/analog module
MEAO4 Analog output 4 on RTD/analog module
MECU3B Three-phase current measurement, stage B
MEVO1B Residual voltage measurement, stage B
MEVO3B Three-phase voltage measurement, stage B
Table 8.3.1-3 New power quality functions
Function Description
PQCU3H Current waveform distortion measurement
PQVO3H Voltage waveform distortion measurement

ABB REF 54 Series Specifications

General

Brand	ABB
Model	REF 54 Series
Category	Touch terminals
Language	English