Device State And Led Displays In The Controller Modules - Leuze electronic MSI 400 Operating Instructions Manual

10.3.1 Device state and LED displays in the controller modules

Flash code meaning
Tab. 10.1: Key
Symbol Meaning
LED off
LED flashing
LED lights up
Reference
Tab. 10.2: Device state and LED displays in the controller modules
PWR/EC
LED
Red flashing
Green flash-
ing (1 Hz)
Green
MS LED
module state
Red flashing
(1 Hz)
Green flash-
ing (1 Hz)
Green
/
Red/green
flashing
Leuze electronic
Meaning
An error has occurred in the control. All
24V outputs have been switched off. The
control must be restarted with a power ON
reset after the cause of the error has been
eliminated.
The number of flash pulses indicates the
error class to which the occurring error be-
longs.
The supply voltage at A1, B1, or B2 is out-
side of the range of 16.8 V to 30 V.
The supply voltage at A1, B1, and B2 is
within the range of 16.8 V to 30 V.
State
There is no project at the control or the
project data is faulty (because, e.g., the
number of inserted I/O modules does not
match the project).
Project data adopted from control and I/O
modules; waiting for start command
Control has started.
One or more inputs have a cable break or
short-circuit to 24V.
Or there is a sequence/synchronous time
error at a two-channel input.
Or an output has a test error (e.g. short-cir-
cuit).
Additional info
Number of flashing pulses = error class
2: Configuration data
3: Application
4: Self-test
5: Voltage/current monitoring
6: I/O modules
7: Cross-communication
8: Internal
Additional info
No module or faulty module configuration
MSI 400
Diagnostics
68