3. Diagnosis
3-26
Festo Festo P .BE CP FB13-E-EN en 9910c
3.7 Short circuit/overload
3.7.1 Output module
In the event of a short circuit or overload:
– all the digital outputs of a string will be switched off.
– If the green “Diag” LED on the output module flashes
quickly,
– the short circuit/overload bit in the octets 9-12 “Device-
related diagnoses 2..5” will be set to log. “1” .
Please note
The outputs cannot be used again until the short circuit or
overload has been eliminated and the error deleted.
Deleting the error
You can delete the error by resetting all eight outputs. You
can select one of the following possibilities:
Possibilities
Explanation
S Set all the outputs of the out-
put module to logical “0”
(RESET) or
S briefly interrupt the CP con-
nection at the CP output
module or
S briefly interrupt the operating
voltagefortheCPsystemat
the field bus node.
– manually or automatically in
the program
– Outputs on the out put mod-
ule will be reset automatically.
– All outputs of the CP system
will be reset automatically.
The outputs can then be used again. If the short circuit/over-
load still exists, the outputs will be switched off again.
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