ABB Network Partner AB
Measurement of alternating
quantities
Version 1.0-00
1MRK 580 159-XEN
Page 7
-
18
Further processing, monitoring, and supervision of different alternate
measuring quantities is possible only in the REC 561 control terminal.
1.1 User-defined
measuring ranges
You can set measuring range for different measuring channels—inde-
pendent of each other in wide setting ranges.
So users can select the most suitable measuring range for each measuring
quantity on each monitored object of a power system. In doing so, they
optimize the functionality of the power system.
1.2 Continuous
monitoring of the
measured quantity
Users can continuously monitor the measured quantity in each channel by
means of four built-in operating limits, see Fig. 1. The monitors operate in
two different modes of operation:
• Overfunction, when the measured current exceeds the HiWarn or
HiAlarm pre-set values
• Underfunction, when the measured current decreases under the Low-
Warn or LowAlarm pre-set values
Fig. 1
Presentation of the operating limits
Each operating level has its corresponding functional output signal (FOS).
Its logical value changes according to Fig. 1.
You can set the hysteresis, which determines the difference between the
operating and reset value at each operating point, in wide range for each
measuring channel separately. The hysteresis is common for all operating
values within one channel.
HiAlarm
HiWarn
LowWarn
LowAlarm
HIALARM=1
HIWARN=1
HIALARM=0
HIWARN=0
LOWWARN=0
LOWALARM=0
LOWALARM=1
LOWWARN=1
Hysteresis
Y
t
(x80159-1)
Summary of Contents for REC 561
Page 19: ...ABB Network Partner AB Introduction REC 561 Version 1 0 00 1MRK 580 146 XEN Page 2 14 ...
Page 31: ...ABB Network Partner AB Requirements and basic technical data REC 561 Version 1 0 00 Page 2 26 ...
Page 49: ...ABB Network Partner AB Page IV ...
Page 121: ...ABB Network Partner AB Menu tree Appendix Version 1 0 00 1MRK 580 158 XEN Page 3 72 ...
Page 139: ...ABB Network Partner AB Terminal identification Version 1 0 00 1MRK 580 160 XEN Page 4 4 ...
Page 143: ...ABB Network Partner AB Activation of setting group Version 1 0 00 1MRK 580 162 XEN Page 4 8 ...
Page 175: ...ABB Network Partner AB Configurable logic Version 1 0 00 1MRK 580 161 XEN Page 4 40 ...
Page 385: ...ABB Network Partner AB Apparatus control Version 1 0 00 1MRK 580 150 XEN Page 6 100 ...
Page 495: ...ABB Network Partner AB Interlocking Version 1 0 00 1MRK 580 151 XEN Page 6 210 ...
Page 515: ...ABB Network Partner AB Event function Version 1 0 00 1MRK 580 140 XEN Page 6 230 ...
Page 519: ...ABB Network Partner AB Page IV ...
Page 561: ...ABB Network Partner AB Time synchronisation Version 1 0 00 1MRK 580 135 XEN Page 7 42 ...
Page 569: ...ABB Network Partner AB Internal events Version 1 0 00 1MRK 580 134 XEN Page 7 50 ...
Page 599: ...ABB Network Partner AB Index Version 1 0 01 1MRK 580 175 XEN Page 8 6 ...
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