Festo IIFB9-02 Series, Manual

Page: 156 / 165

Short circuit/overload at an output module
In the case of a short circuit or overload:
•
the digital output will be switched off,
•
the red LED will light up,
•
the short circuit error bit of the diagnostic
word will be set at logic 1,
•
the error code "short circuit/overload" will be
entered in the two status bits.
In order to activate the output again, proceed as
follows.
The output can then be reset at "logic 1".
If the short circuit still exists, the output will be
switched off again.
Step Explanation
Eliminate short circuit or overload
Set output at 0 (RESET)
• Manual (control)
• Automatically in the program
The error bit in the diagnostic word of the
terminal is reset at logic 0.
Fig. 6/23: Eliminating short circuit/overload
VIFB9 - 02 6. Diagnostics/error treatment
9609
6-29