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Operation
7
Operation
7.1
Messages
A module error is displayed via the "Err" LED (see section entitled "Display elements"), sig-
nalled to the head module and then entered in the head module's error stack.
The module can detect the following errors:
Module error
Start-up error
Configuration error
FS communication error
Bus termination error
Temperature error: Too warm (
Temperature error: Too hot (
Overvoltage error
Undervoltage error
Relay control error
Block switching output error
1
(
) There are two levels of overtemperature.
}
Too warm:
If a module's temperature exceeds a theshold value, the module sends a warning to the
head module. If the temperature drops back below the threshold value, the module
sends an all-clear.
}
Too hot:
If a module's temperature exceeds a further theshold value, the module sends an error
message to the head module and triggers an I/O-Group stop.
Further information on PSSu error messages is available in the online help for the PSS
WIN-PRO system software.
Operating Manual PSSu E F BSW(-T)
21372-EN-06
Explanation
Error as the PSSu system starts
up
Incorrect module type configured.
Error during FS communication
There is no terminating plate or
there is a bad contact with the
module bus.
1
)
Ambient temperature too high:
Error stack entry
1
)
Ambient temperature too high:
Reset the module and stop the af-
fected I/O-Groups (SafetyBUS p)
A system voltage or infeed is too
high.
A system voltage or infeed is too
low.
Error during cyclical monitoring
test of the relay coils
Error during cyclical monitoring
test of the relay contacts. Possible
external cause: Voltages being fed
back to the relay contacts
Remedy
Change faulty module.
The configured hardware registry
does not match the actual hard-
ware registry.
Change faulty module.
Install a terminating plate with in-
tegrated end bracket or insert the
base modules together correctly.
Ensure there is sufficient ventila-
tion in the control cabinet or pre-
vent overload.
Ensure there is sufficient ventila-
tion in the control cabinet or pre-
vent overload.
Stabilise the supply or change the
faulty supply voltage module.
Stabilise the supply or change the
faulty supply voltage module.
Change faulty module.
Check the supply voltage and the
wiring.
29
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