DP840 Fault LED
In what document can I find the possible reasons of the Fault led from the S800 - DP840 puls card.
No so much information available - you can try 3BSE020924R4101.
The fault could be due to the broken line, broken sensor, wrong configuration of DP840 e.t.c. - so many possible reasons.
The module perform self-diagnostics cyclically. Module diagnostics include among
• Transmitter power supply error, power supply error (process side), short circuit
and open wire. These errors will be reported as External Channel Error.
• Counter supervision. This will be reported as Internal Channel Error.
• Error in data/address bus supervision will be reported as Module Error.
• Synchronization error will be reported as Module Warning.
The reset circuitry gives a reset signal when the module is inserted until the BLOCK
signal is inactive and the POWOK signal is active. The BLOCK signal is
deactivated when the module lock mechanism is in the locked position. The
POWOK comes from the ModuleBus master or controller after power is applied.
Four LED indicate module status Fault (red), Run (green), Warning (yellow) and
Primary (yellow). Two LED per channel indicate input state (Px yellow) and
channel fault (F red). The Primary LED is on if the module is primary in a
redundant pair. The Px LED is on if pulse (high signal) on the input and F LED is on
if the channel is faulty.