Date Code 20020129
Testing and Troubleshooting
10-47
SEL-387E Instruction Manual
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.
F
ACTORY
A
SSISTANCE
We appreciate your interest in SEL products and services. If you have questions or comments,
please contact us at:
Schweitzer Engineering Laboratories, Inc.
2350 NE Hopkins Court
Pullman, WA USA 99163-5603
Tel: (509) 332-1890
Fax: (509) 332-7990
Internet: www.selinc.com
Содержание SEL-387E
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