Led Diagnosis On The I/O Modules; Input Modules; Combination Modules - Aventics 2AI2M12-E Description Du Système Et Notice D'emploi

Reading the diagnostic display on
the I/O module
1 2 3 9
DIAG UL
X2N1
Input module 2AI2M12E and
4AI4M12E
1 2 3 9
DIAG UX UL
X2A1
Combination module
2AI2AO2M12AE
AVENTICS | AES I/O Modules, Analog | R412018147–BAL–001–AG
8

LED Diagnosis on the I/O Modules

The LEDs on the top of the I/O module reflect the messages shown in Tables 69 to 72.
Before commissioning and during operation, regularly check I/O module functions by reading
the LEDs.
8.1

Input modules

The input modules monitor the sensor voltage and input function.
The input module generates an error signal and reports it to the controller if
the sensor voltage falls below or exceeds the set threshold,
a short circuit in the sensor supply to X1N1, X1N2, X1N3, or X1N4 is present,
the signal acquisition delivers undefined values.
Table 69: Meaning of the diagnostic LEDs on the input modules
Designation Color State
DIAG (1)
Red Illuminat
ed
– (2) – –
UL (3)
Green Illuminat
ed
– (9) – –
8.2

Combination modules

The combination modules monitor the actuator voltage and the function of the inputs and outputs.
The load supply for the combination module is provided by the actuator voltage (UX).
The combination module generates an error signal and reports it to the controller if
the actuator voltage falls below or exceeds the set threshold,
the signal acquisition delivers undefined values,
a diagnostic message from the driver of an output channel is present,
a short circuit in the load supply to X2A1 or X2A2 is present.
Table 70: Meaning of the diagnostic LEDs on the combination modules
Designation Color State
DIAG (1)
Red Illuminat
ed
UX (2)
Green Illuminat
ed
UL (3)
Green Illuminat
ed
– (9) – –
Meaning
Diagnostic message of the input module present:
Error in signal acquisition or
24 V DC power supply too high or too low or
short circuit in the 24 V DC sensor supply
not assigned
Sensor voltage is present.
No function
Meaning
Diagnostic message of the combination module present:
Error in signal acquisition or
error status of the output drivers or
24 V DC power supply too high or too low or
short circuit in the 24 V DC load supply
Actuator voltage is present.
Sensor voltage is present.
No function
LED Diagnosis on the I/O Modules
115