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Fieldbus Coupler
Fieldbus Coupler 750-341
WAGO-I/O-SYSTEM
750
ETHERNET TCP/IP
3.1.9.3 Supply voltage status
The two green LED’s in the coupler supply section, display the status of the
supply voltage. The left LED (A) indicates the status of the 24 V supply for
the coupler. The right hand LED (‘B‘ or ‘C‘) displays the status of the field
side supply (i.e., the power jumper contacts).
LED
Meaning
Trouble shooting
A
Green
Operating voltage for the system exists.
OFF
No operating voltage for the system.
Check the supply voltage (24V
and 0V).
B or C
Green
Operating voltage for the power jumper
contacts exists.
OFF
No operating voltage for the the power
jumper contacts.
Check the supply voltage (24V
and 0V).