GE L90 Instruction Manual page 164

5.2 PRODUCT SETUP
The main menu for the IEC 61850 MMXU deadbands is shown below.
PATH: SETTINGS PRODUCT SETUP
MMXU DEADBANDS
The MMXU deadband settings represent the deadband values used to determine when the update the MMXU "mag" and
"cVal" values from the associated "instmag" and "instcVal" values. The "mag" and "cVal" values are used for the IEC 61850
buffered and unbuffered reports. These settings correspond to the associated "db" data items in the CF functional con-
straint of the MMXU logical node, as per the IEC 61850 standard. According to IEC 61850-7-3, the db value "shall repre-
sent the percentage of difference between the maximum and minimum in units of 0.001%". Thus, it is important to know the
maximum value for each MMXU measured quantity, since this represents the 100.00% value for the deadband.
The minimum value for all quantities is 0; the maximum values are as follows:
phase current: 46 × phase CT primary setting
•
neutral current: 46 × ground CT primary setting
•
voltage: 275 × VT ratio setting
•
5
power (real, reactive, and apparent): 46 × phase CT primary setting × 275 × VT ratio setting
•
• frequency: 90 Hz
• power factor: 2
The GGIO1 status configuration points are shown below:
PATH: SETTINGS PRODUCT SETUP
GGIO1 STATUS
CONFIGURATION
The
NUMBER OF STATUS POINTS IN GGIO1
instantiated in the GGIO1 logical node. Changes to the
the L90 is restarted.
The GGIO2 control configuration points are shown below:
PATH: SETTINGS PRODUCT SETUP
GGIO2 CF SPCSO 1
The GGIO2 control configuration settings are used to set the control model for each input. The available choices are "0"
(status only), "1" (direct control), and "2" (SBO with normal security). The GGIO2 control points are used to control the L90
virtual inputs.
5-28
COMMUNICATIONS
MMXU1 DEADBANDS
MMXU2 DEADBANDS
MESSAGE
MMXU3 DEADBANDS
MESSAGE
MMXU4 DEADBANDS
MESSAGE
COMMUNICATIONS
NUMBER OF STATUS
POINTS IN GGIO1: 8
GGIO1 INDICATION
MESSAGE
Off
GGIO1 INDICATION
MESSAGE
Off
GGIO1 INDICATION 128
MESSAGE
Off
setting specifies the number of "Ind" (single point status indications) that are
COMMUNICATIONS
GGIO2 CF SPCSO 1
CTLMODEL: 1
L90 Line Current Differential System
IEC 61850 PROTOCOL
IEC 61850... GGIO1 STATUS CONFIGURATION
Range: 8 to 128 in steps of 8
Range: FlexLogic™ operand
1
Range: FlexLogic™ operand
2
↓
Range: FlexLogic™ operand
NUMBER OF STATUS POINTS IN GGIO1
IEC 61850... GGIO2 CONTROL...
Range: 0, 1, or 2
5 SETTINGS
MMXU DEADBANDS
setting will not take effect until
GGIO2 CF SPSCO 1(64)
GE Multilin