Operation
Operating Manual PSS u2 ES 4DO R 8A
1004548-EN-03
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[1]
Colour [1]
[2]
Colour
[2]
Meaning
Further information
Red
Green
The module status display and all ter-
minal status displays flash synchron-
ously
Periphery supply is missing/temperature
error: Too hot (1)
See module's dia-
gnostic log
(
1
) There are two levels of overtemperature.
}
Too warm:
If the module temperature exceeds a threshold value, then:
– a warning is sent to the head module.
If the temperature drops back below the threshold value, the module sends an all-clear.
}
Too hot:
If the module temperature exceeds another threshold value, then:
– an error message is sent to the head module
– the outputs are switched off
– The valid bits for the outputs are set to "0"
After the "too hot" message has been received, if the temperature drops back below the
"too warm" threshold value, the module will switch to an error-free state.
Legend
LED on
LED flashes
LED flashes briefly
LED off
