GE LPS-O Instruction Manual page 189

Line protection system
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8 LOCAL USER INTERFACE
NOTE:
1. The LPS-O has 12 contact converters.
2. The contact converter is OPEN if the status is a '0'. The contact converter is CLOSED if the status is a '1'.
3. If no digital input is assigned to a contact converter, its status information will still be displayed along with
the contact converter number but the name will be blank.
This command displays the definition and the state of each digital output in the relay. This information is dis-
played three lines at a time. Use the arrow keys to scroll through the digital outputs (displayed in groups).
The Trip Outputs have the letter T in front of the output contact number. Alarm Contacts have the letter A in
front of the output contact number. The two Form C output contacts have the letter C in front of the number.
The Critical Alarm is just labeled CA.
NOTE: If the DO status is shown as '0' it means it is OPEN; if it is '1', then it is CLOSED.
This category can be used to view event information logged when certain functions are performed by the relay.
Information displayed for each event consists of: Event number and its time of occurrence on the top line; date
of occurrence of event on the second line; detailed event description on the third and fourth lines. The user
may use the arrow keys to view the event information. The user can also enter an event number followed by
the [ENT] key to display the information for a specific event. An error message is displayed if the user enters
an invalid event number. Listed below is a list of the possible event messages available:
EVENT LIST
Fail: CPU board SRAM
Fail: 960 access to DPRAM
Fail: EEPROM
Fail: Digital output test
Fail: Interrupt test
Fail: ANI ADC Control logic
Fail: ANI ref. channel test
Fail: DMA interrupt failure
Fail: ANI board timer
Fail: ANI board serial EEPROM test
Fail: MAG module serial EEPROM test
Fail: Digital output serial EEPROM test
Fail: DTA serial EEPROM test
GE Power Management
DO STATUS
T1 - T4 : 1 0 1 1
T5 - T6 : 0 0
A1 - A4 : 0 1 0 0
Fail: DSP PROM failure
Fail: DSP internal RAM
Fail: DSP internal RAM checksum error
Fail: DSP access to DPRAM
Fail: DSP interrupt
Fail: Digital input test
Fail: Model number - critical in nature
Fail: MAG module configuration mismatch
Fail: ANI module configuration mismatch
Fail: Digital input module configuration mismatch
Fail: D igital output m odule configuration m ism atch
Fail: Trip circuit continuity monitor #1
Fail: Trip circuit continuity monitor #2
LPS-O Line Protection System
8.2 INFORMATION
8.2.6 DIGITAL OUTPUT STATUS
8.2.7 EVENT INFORMATION
8
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