Device State And Led Displays In The Safe Input/Output Modules - Leuze electronic MSI 400 Operating Instructions Manual

10.3.2 Device state and LED displays in the safe input/output modules

NOTICE
The displays of the MS LED and the input LEDs I1 to I8 are identical to those for the MSI-EM-
i
IO84 and MSI-EM-I8 expansion modules.
Tab. 10.3: Displays of the MS LED
MS LED
/
Red/green
flashing (1 Hz)
Green flash-
ing (1 Hz)
Green
Red flashing
(1 Hz)
Red flashing
(2 Hz)
Red
Leuze electronic
Meaning
Supply voltage outside of operating range
Repairable external error
System in the stop state or the voltage
supply to A1 is outside the range of 16.8V
to 30V.
System in the run state and the voltage
supply to A1 is within the range of 16.8V to
30V.
Invalid configuration
Critical error in the system; suspected in
this module. Application has been stopped.
All outputs are switched off.
Critical error in the system; suspected in a
different module. Application has been
stopped. All outputs are switched off.
Info
Check supply voltage at terminals A1 and
A2.
Check cable of flashing inputs and outputs.
If all output LEDs are flashing, check the
supply voltage of terminal A1 and A2 for
this module.
Start the application in MSI.designer.
Check voltage supply to A1.
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.
MSI 400
Diagnostics
70