Leuze electronic MSI 400 Operating Instructions Manual page 72

MS LED
Red flashing
(2 Hz)
Red
Tab. 10.7: Displays of input LEDs
Input LEDs (I1–I4 and IY5-IY8)
Tab. 10.8: Displays of output LEDs
Output LEDs (Y1-Y4 and IY5-IY8)
synchronous with the red MS LED
Leuze electronic
Meaning
Critical error (type 3) in the system; sus-
pected in this module. Application has
been stopped.
Critical error in the system; suspected in a
different module. Application has been
stopped.
Green
Green
Green (1 Hz)
Info
Switch supply voltage off and back on.
If the error has not been eliminated after
this has been done multiple times, then re-
place module.
In order to contain the module affected,
use the diagnostics display in MSI.de-
signer.
Switch supply voltage off and back on.
If the error has not been eliminated after
this has been done multiple times, then re-
place module in which the red LED is flash-
ing (2 Hz).
In order to contain the module affected,
use the diagnostics display in MSI.de-
signer.
Meaning
Signal level at the input terminal is 0 V.
Inputs actuated.
Signal level at the input terminal is 24V.
Input is not actuated.
Meaning
Output is switched off.
Output is switched off.
Output has an error.
(e.g. output driver overloaded)
MSI 400
Diagnostics
72