O4Le Detail Alarms - ABB ETL600 Instruction Manual

ETL600
HMI600 Alarm Text
• Channel
measurement for
equalizer in
progress
9.6.1.5.

O4LE detail alarms

HMI600 Alarm Text
• TDM bus
communication
failure
• Initialization of
UART failed
• Initialization of PLL
failed
• Initialization of
CODECs failed
• Data exchange error
at CODECs
• Data memory CRC
error
• Program memory
CRC error
• Slot mismatch
between
configuration and
rack position
Troubleshooting
1KHW001489-EN
Explanation and corrective actions
(the latter in italics)
The frequency response measurement is in progress
either from local end or remote end.
The alarm will disappear when the measurement is
complete or use 'Interrupt remote activity' option to stop
the measurement.
Explanation and corrective actions
(the latter in italics)
Communication with the P4LT/P4LU board is disturbed.
Make sure that the board is firmly plugged in. Unplug the
board and check if all pins of the connector to the
backplane are present and not bent. If the error message
appears repeatedly, replace the O4LE board.
The UART / PLL is not / the CODECS are not properly
working.
Switch off the power to ETL600 and switch it on again after
some seconds. If the error persists, replace the faulty
O4LE
A memory error has been detected in the memory of the
DSP on O4LE. The reason can be faulty O4LE hardware
or excessive EMI, possibly in combination with poor
substation grounding and/or not properly grounded cable
shields.
Connect the shields of cables to ETL600 to ground as
described in section 6. Improve the grounding of ETL600,
specially the connections between the buried earth grid
and substation ground, substation ground and cabinet,
cabinet and (swing) frame, (swing) frame and equipment
rack.
If external EMI effects can be excluded and the error
message appears repeatedly, replace the O4LE board.
The board is not plugged at the correct position in the rack.
Verify that the board is plugged in at the correct position in
the P7LC subrack according to HMI600 (View / Display
configuration).
November 2005
ABB Switzerland Ltd
9-21