Diagnostics Via Led Indicators; Table 46: Signal Evaluation For Each Input - "Function U X" (Led 1 Or 3); Table 48: Signal Evaluation For Each Input - "Error U X" (Led 2 Or 4) - WAGO 750 Series Manual

WAGO I/O System 750
750-1491 2AI Resistor Bridge (Strain Gauge)
No monitoring of the 24 V field voltage!
A diagnosis of "Field voltage too low / not available" is not possible.
10.2

Diagnostics via LED Indicators

The indicators of the I/O module provide information about possible states and
cases of error. The tables below contain the interpretations of the signals:
Table 46: Signal Evaluation for Each Input – "Function U
Status LED State
Green
Tabelle 47: Signal Evaluation for Each Input – "Function U
Zustand Status-LED
Green
Table 48: Signal Evaluation for Each Input – "Error U
Error LED State
Red
Possible Interpretation
Not ready for operation
Off Local bus communication absent or interrupted
Input deactivated
Operational readiness and uninterrupted local bus
communication
Mögliche Deutung
Not ready for operation
Off Local bus communication absent or interrupted
Input deactivated
Operational readiness and uninterrupted local bus
communication
Possible Interpretation
No error
Off Input deactivated
Diagnostics deactivated
Underflow
Overflow
Measurement underrange
Measurement overrange
Internal error
Diagnostics
X" (LED 1 or 3)
d
X" (LED 9 or 11)
ref
X" (LED 2 or 4)
d
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Manual
Version 1.0.0