Schweitzer Engineering Laboratories SEL-387E - Alarm Contacts Closed; Relay Calibration; Self-Test Failure: A;D Converter; Self-Test Failure: CR_RAM, EEPROM, and IO_BRD

Date Code 20080110 Testing and Troubleshooting 10-47
SEL-387E Instruction Manual
Self-Test Failure: ROM
1. Memory failure.
2. Contact the factory.
Self-Test Failure: RAM
1. Failure of static RAM IC.
2. Contact the factory.
Self-Test Failure: A/D Converter
1. A/D converter failure.
2. RAM error not detected by RAM test.
Self-Test Failure: IO_BRD
1. Interface board has been changed. Execute the INITIO command.
2. Ribbon cable disconnected between upper interface board and main board. Reconnect and
execute
INITIO command. Step 2 only applies to the upper interface board in a relay that
has more than one I/O board.
3. Interface board failure.
Self-Test Failure: CR_RAM, EEPROM, and IO_BRD
1. Self-test detected EEPROM or CR_RAM reconfiguration because of Flash firmware upgrade.
Execute
R_S command.
2. Main board failure, contact the factory.
Alarm Contacts Closed
1. Power is off.
2. Blown fuse.
3. Power supply failure.
4. Main board or interface board failure.
5. Other self-test failure.
Self-Test Failure: Temp
1. Record STA command and state of all outputs.
2. Contact the factory. Powering down the relay will reset the logic.
Relay Calibration
The SEL-387E Relay is factory calibrated. If you suspect that the relay is out of calibration,
please contact the factory.