Supply Voltage Status - WAGO 750-306 Technical Description

Fault code 5: Register communication fault
Fault code 6: Fieldbus specific faults
Fault code 7: I/O module not supported
* The number of blink pulses (n) indicates the position of the I/O module. I/O modules
without data are not counted (i.e. supply module without diagnosis)
Example: the 13
1.
2.
3.

3.1.8.4 Supply Voltage Status

LED
A
C
There are two green LED's in the Coupler supply section to display the supply
voltage. The left LED (A) indicates the 24 V supply for the Coupler. The right
hand LED (C) signals the supply to the field side, i.e. the power jumper con-
tacts.
WAGO-I/O-SYSTEM 750
DeviceNet
n* Internal bus fault during register communication with the I/O mod-
ule n
0 not used
n* I/O module not supported at position n
th
I/O module is removed.
The "I/O" LED generates a fault display with the first blink sequence (approx. 10 Hz).
The first pause is followed by the second blink sequence (approx. 1 Hz). The "I/O"
LED blinks four times and thus signals the fault code 4 (internal bus data fault).
The third blink sequence follows the second pause. The "I/O" LED blinks twelve
times. The fault argument 12 means that the internal bus is interrupted after the 12
I/O module.
Color Meaning
green Status of the operating voltage – system
green Status of the operating voltage – power jumper contacts
Fieldbus Coupler/Controller • 59
Fieldbus Coupler 750-306
th