10-3
On Off All power supplies are operating correctly.
Off On One or more power supplies are faulty.
Off Off The device is not powered on.
Slot status LED
(SLOT)
RUN ALM
Flashing (4
Hz)
On
The module is loading software.
If the LED stays in this status, the software version
of the device does not match that of the module.
Flashing (0.5
Hz)
Off The module is operating correctly.
Flashing (0.5
Hz)
Flashing
(0.25 Hz)
The temperature of the module has reached the
high-temperature warning threshold or dropped
below the low-temperature threshold.
On On The module is starting up or faulty.
Off Off The module is not present.
Active/standby status
LED (ACTIVE)
On The MPU is operating in active mode.
Off
• The MPU is operating in standby mode.
• The MPU is faulty. Examine also the status
LED for the MPU to determine whether a fault
has occurred.
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