Diagnostic display on the
16-position input module
AVENTICS | HF03/HF02 | 1987765493–BDL–001–AB
5.3
Diagnostic display on the 16-position
input module
The DIA LED on the 16-position input module shows the
diagnostic messages of the following table. This supplements
the diagnostic display on the bus coupler and more precisely
defines the cause of the error.
Table 18:
Diagnostic display on the 16-position input module
LED
Description
DIA
Off
No diagnosis or emergency off
1)
W
Red
W
W
1)
Requirement: L24V logic supply is on.
2)
The input module is resistant to short circuits, an overload therefore does not
necessarily lead to a fuse blowing on the bus coupler.
Low sensor supply voltage, P24V < 11 V
No P24V sensor supply
Short circuit at one or more inputs.
Max. perm. total current: 0.5 A
69
Testing and startup
2)