ABB Relion 670 Series Applications Manual page 419

1MRK 511 358-UUS A
15.13.2 Application
The function gives the possibility to monitor the level of integer values in the system relative to
each other or to a fixed value. It is a basic arithmetic function that can be used for monitoring,
supervision, interlocking and other logics.
15.13.3 Setting guidelines
For proper operation of comparison the set value should be set within the range of ± 2 ×10
Setting procedure on the IED:
EnaAbs : This setting is used to select the comparison type between signed and absolute values.
Absolute : The function will do absolute comparison between input and reference value
•
Signed : The function will do signed comparison between input and reference value
•
RefSource : This setting is used to select the reference source between input and setting for
comparison.
REF : The function will take reference value from input REF
•
• SetValue : The function will take reference value from setting SetValue
SetValue : This setting is used to set the reference value for comparison when setting RefSource is
selected as
15.13.4 Setting example
For absolute comparison between inputs:
Set the EnaAbs = 1
RefSource = 1
Set the
Similarly for Signed comparison between inputs
EnaAbs = 0
Set the
RefSource = 1
Set the
For absolute comparison between input and setting
EnaAbs = 1
Set the
RefSource = 0
Set the
SetValue shall be set between -2000000000 to 2000000000
Similarly for signed comparison between input and setting
EnaAbs = 0
Set the
Application manual
SetValue .
Section 15
Logic
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