Automatic user warnings are initiated using the following diagram (see
Figure 6.3).
Thermal
shutdown
85
80
75
70
65
75 °C
User warning
75 °C
User warning
User warning
stops
80°C
User warning
repeats every
minute
80°C
User warning
repeats every
minute
Reset
user warning
Figure 6.3:
Thermal protection
-
Automatic user warnings
l
As soon as one of the internal thermocouples measures a temperature
above +75 °C for the first time, a single user warning is initiated. As long
as the highest temperature measured is above +70 °C and below +80 °C,
no additional user warnings are initiated.
l
If the internal temperature drops below +70 °C after re75 °C, the
system assumes that the user has performed an action, to reduce internal
temperatures. If the internal temperature r75 °C again, the system
assumes that there is a new thermal problem and a new user warning is
initiated.
l
If the internal temperature keeps rising and r80 °C, the system
assumes that a critical zone has been reached. User warnings will be sent
every minute for as long as the measured temperatures are above
+80 °C. If the temperature drops below +80 °C, the warnings sent at minute
intervals stop. If the temperature rises above +80 °C again, user warnings
are initiated every minute again.
l
If the internal temperature were to keep rising and then r85 °C, an
automatic thermal system shutdown user warning is initiated, the automatic
thermal shutdown event is logged in the systems error log and the system
will shut down.
At next power
-
on of the GEN series system, the automatic thermal shutdown
event will be presented to the user again and can be found in the error
diagnostics of the mainframe.
GEN3i
I3763-3.1 en HBM: public
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