ETL600 1KHW001489-EN ABB Switzerland Ltd
HMI600 Alarm Text Explanation and corrective actions
(the latter in italics)
• NSK600 DSP
program memory
CRC error
• MOD600 DSP
program memory
CRC error
A memory error has been detected in the memory of the
NSK600 DSP / MOD600 DSP on P4LT. The reason can
be faulty P4LT 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 P4LT.
• FPGA not
operational
The FPGA on P4LT is not operational.
Reset the system. If the error persists, replace P4LT.
• Piggyback on P4LT
missing
The Piggyback board on P4LU is required but can’t be
detected.
Make sure that the piggyback board is present and
correctly mounted on P4LU. If the error persists, replace
P4LU.
• Both MOD600
configured as
master
In both terminals of the link, MOD600 is configured as
Master. MOD600 might work for a while but suddenly fail.
Set the MOD600 operation mode to Slave in one of the
link terminals (Configuration / Configure MOD600 /
Operating Mode).
9.6.2.2. Data link alarms
HMI600 Alarm Text Explanation and corrective actions
(the latter in italics)
• No MOD600 pilots
detected
No MOD600 pilots have been detected.
Make sure that
- the channel settings of both link terminals match,
- one link terminal has the MOD600 operational mode
set to ‘Master’, the other to ‘Slave’,
- the status of the remote MOD600 is ‘On’ (Configuration
/ MOD600 / Signal settings / Status).
Troubleshooting November 2005 9-23
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