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

Tab. 10.4: Displays of input LEDs
Input LEDs (I1–I8)
Synchronous with the red MS LED
Synchronously alternating with the red MS
Tab. 10.5: Displays of output LEDs
Output LEDs (Q1–Q4)
Synchronous with the red MS LED

10.3.3 Device state and LED displays in the standard input/output modules

Tab. 10.6: Displays of the MS LED
MS LED
/
Red flashing
(1 Hz)
Green flash-
ing (1 Hz)
Green
Red flashing
(1 Hz)
Leuze electronic
Green
Green (1 Hz)
Green (1 Hz)
LED
Green (1 Hz)
Green (1 Hz)
Meaning
Supply voltage outside of operating range
Repairable external error
System in the stop state and waits for start
command or the voltage supply to A1 / A2
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
Meaning
Signal level at the input terminal is 0 V.
Safety mat: Both inputs actuated.
Signal level at the input terminal is 24V.
Signal level at the input terminal is 0V and
a repairable error at a two-channel input is
pending.
Signal level at the input is 24V and a re-
pairable error is pending.
Meaning
Output has a test error.
Output is switched off.
Output is 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.
MSI 400
Diagnostics
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