Node Status - Blink Code Of The 'I/O' Led - WAGO -I/O-SYSTEM 750 Technical Description

3.1.7.2 Node Status – Blink Code of the 'I/O' LED
LED
IO
The coupler starts after switching on the supply voltage.
The "I/O" LED flashes red.
Following an error free start up the "I/O " LED changes to green steady light.
In the case of a fault the "I/O " LED continues blinking red.
Detailed fault messages are displayed via the 'I/O ERR'-LED with the aid of a
blink code. A fault is cyclically displayed with up to 3 blink sequences.
• The first blink sequence (approx. 10 Hz) starts the fault display.
• The second blink sequence (approx. 1 Hz) following a pause. The number
• The third blink sequence (approx. 1 Hz) follows after a further pause. The
Fig. 3.1.7-16: Signalling the LED's node status via the 'I/O ERR'-LED
After overcoming a fault, restart the coupler by cycling the power.
WAGO-I/O-SYSTEM 750
CANopen
Color Meaning
red /green The 'I/O' LED indicates the node operation and signals faults occur-
/ orange ring.
of blink pulses indicates the fault code.
number of blink pulses indicates the fault argument.
Fieldbus Coupler 750-337, 750-338
Fieldbus Coupler
• 67
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