Diagnostics; Diagnostics Via Led Indicators; Table 31: Signal Evaluation For Each Channel, Led A-H - WAGO 750-439 Manual

WAGO-I/O-SYSTEM 750
750-439 8DI NAMUR Ex i
8

Diagnostics

8.1

Diagnostics via LED Indicators

The display elements of the I/O modules provide information about possible
statuses and cases of error. The table below contains the evaluation of the
signaling:

Table 31: Signal Evaluation for Each Channel, LED A-H

LED Status
Off
Green
Red
Red, flashing
Possible interpretation
Make contact (NO)
Not ready for operation.
Contact open or NAMUR
sensor in
"blocking" status
("0" per EN 60947-5-6)
Contact closed or NAMUR
sensor in
"conductive" status
("1" per EN 60947-5-6)
Version 1.3.0, valid from HW Version 03, SW Version 03
Diagnostics
Break contact (NC)
Contact closed or NAMUR
sensor in
"conductive" status
("1" per EN 60947-5-6)
Contact open or NAMUR
sensor in
"blocking" status
("0" per EN 60947-5-6)
Short circuit
Wire break
47
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