JUMO 705001 mTRON T - Central Processing Unit Operating Manual - Manual (Page 31)

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4 Electrical connection
Errors during initialization
Startup
The checks described above complete the process of installation and electrical connection. For
startup, use the additional documentation (operating manual or system manual).
The "Introduction" section of this document contains an overview of all documentation for the
measuring, control, and automation system.
If Then
After the LED test,
the "Status" LED lights up in red and
the "BusError" LED does not light up
There is an internal error and the central process-
ing unit must be replaced.
After the LED test,
the "Status" LED flashes red and
the "BusError" LED does not light up
The internal buffer battery is dead and must be
replaced.
For buffer battery replacement, please contact
the device manufacturer or plant installer.