GE F650 Instruction Manual page 436

7 IEC 61850 PROTOCOL 7.3 IEC 61850 CONFIGURATOR
-For frequency:20 to 70 Hz
-For Angles: 0 to 360 (only in firmware version 5.00 and higer, the deadband used for angles is the dbAng parameter)
Note: For firmware versions lower than 5.00 there is one common deadband used both for angles and magnitudes in the in
the corresponding phasor measurement (current or voltage). So take into account this when using reports with data
change, because in some cases the angle value can trigger reports quite often due to the difficulty to calculate a common
deadband for both values, angle and magnitude. In these cases it is advisable to use integrity report in firmware versions
lower than 5.00.
Starting from firmware version 5.00 the 650 family of relays implement separate deadbands for magnitude and angle for
phasors (voltages and currents). Thus for example, phase A current attribute contains in 650 relay two deadbands, one for
phase A current magnitude and the other for phase A current angle. The deadband for magnitude is the db parameter while
the deadband for angle is the dbAng parameter.
Apart from MMXU logical node also MSQI and Remote Input GGIO (default name rinGGIO1) have attributes that are
analogue values and contain db parameters to establish deadbands.
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GEK-106310AB F650 Digital Bay Controller 7-67