
118 • Programmable Field Bus Controller 750-833
LED Signaling
WAGO-I/O-SYSTEM 750
Bus System
3.11.6 Supply Voltage Status
There are two green LED in the controller supply section. The left upper
LED (A) indicates the status of the system supply. The right upper LED (C) or
the left lower LED (B) signals the supply to the field side (the LED position
depends on manufacturer).
LED A Meaning Remedy
green System supply is ok
off System supply failed Check the power supply (24 V and 0 V)
LED C
or B
Meaning Remedy
green Field supply is ok
off Field supply failed Check the power supply (24 V and 0 V)
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