Operation
Operating Manual PSS u2 ES 4DI
1003609-EN-03
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The module can detect the following errors:
[1]
Colour [1]
[2]
Colour [2] Meaning
Further informa-
tion
--
--
Module not ready for operation
Green
--
Module ready for operation
Green
Green
Module in operation and there is a
"1"-signal at the input
Green
--
Module in operation and there is a
"0"-signal at the input
Red
--
Configuration error
Module was inserted in the wrong
slot.
Red
--
Internal errors
See module's
diagnostic log
Red
--
Temperature error: Too warm (1)
See module's
diagnostic log.
Red
Green
The module status display and all
terminal status displays flash simul-
taneously
Periphery supply is missing/temper-
ature error: Too hot (1)
See module's
diagnostic 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 inputs continue to be read and appear in the ST-PII
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
