100
OK/FAIL LED status
Description
Off
The switch is not powered on.
Module status LEDs
LSQM3MPUA0
Table 48 MPU status LED description
RUN LED status
Description
Flashing
The module is operating correctly.
Off
The module is starting up or faulty.
Table 49 Service module status LED description
RUN LED
status
ALM LED
status
Description
Flashing
Off
The modules are operating correctly.
Fast flashing (4
Hz)
On
The modules are loading software.
If the LED flashes continuously, the software versions of the switch
and the module do not match.
On
On
The modules are starting up or faulty.
Off
Off
No module is present.
LSQM2MPUD0/LSQM1SRP8X2QE0
Table 50 Module status LED description
RUN/ALM LED status
Description
Flashing green
The module is operating correctly.
Fast flashing green (4 Hz)
The module is loading software.
If the LED flashes continuously, the software versions of the switch
and the module do not match.
Steady red
The module is starting up or faulty.
Flashing red
The temperature of the module exceeds the upper limit or drops
below the lower limit.
Off
No module is present.
MPUs other than the LSQM3MPUA0, LSQM2MPUD0, and LSQM1SRP8X2QE0
Table 51 Module status LED description
RUN LED
status
ALM LED
status
Description
Flashing (0.5 Hz)
Off
The module is operating correctly.
Fast flashing (4
Hz)
On
The module is loading software.
If the LED flashes continuously, the software versions of the switch
and the module do not match.