GE Multilin
L30 Line Current Differential System
5-191
5 SETTINGS
5.7 CONTROL ELEMENTS
5
Figure 5–91: ACKNOWLEDGE MODE
APPLICATION EXAMPLE
Consider an application where the selector switch is used to control setting groups 1 through 4 in the relay. The setting
groups are to be controlled from both user-programmable pushbutton 1 and from an external device via contact inputs 1
through 3. The active setting group shall be available as an encoded three-bit word to the external device and SCADA via
output contacts 1 through 3. The pre-selected setting group shall be applied automatically after 5 seconds of inactivity of
the control inputs. When the relay powers up, it should synchronize the setting group to the three-bit control input.
Make the following changes to setting group control in the
SETTINGS
CONTROL ELEMENTS
SETTING GROUPS
menu:
SETTING GROUPS FUNCTION:
“Enabled”
GROUP 4 ACTIVATE ON:
“SELECTOR 1 POS 4"
SETTING GROUPS BLK:
“Off”
GROUP 5 ACTIVATE ON:
“Off”
GROUP 2 ACTIVATE ON:
“SELECTOR 1 POS 2"
GROUP 6 ACTIVATE ON:
“Off”
GROUP 3 ACTIVATE ON:
“SELECTOR 1 POS 3"
Make the following changes to selector switch element in the
SETTINGS
CONTROL ELEMENTS
SELECTOR SWITCH
SELECTOR SWITCH 1
menu to assign control to user programmable pushbutton 1 and contact inputs 1 through 3:
842736A1.CDR
STEP-UP
ACK
3BIT A0
3BIT A1
3BIT A2
3BIT ACK
POS 1
POS 2
POS 3
POS 4
POS 5
POS 6
POS 7
BIT 0
BIT 1
BIT 2
pre-existing
position 2
changed to 4 with
a pushbutton
changed to 1 with
a 3-bit input
changed to 2 with
a pushbutton
STP ALARM
BIT ALARM
ALARM
Summary of Contents for L30
Page 10: ...x L30 Line Current Differential System GE Multilin TABLE OF CONTENTS ...
Page 30: ...1 20 L30 Line Current Differential System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 370: ...5 244 L30 Line Current Differential System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 464: ...A 10 L30 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 600: ...C 30 L30 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 610: ...D 10 L30 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 622: ...E 12 L30 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 634: ...F 12 L30 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Page 644: ...x L30 Line Current Differential System GE Multilin INDEX ...