46 • Fieldbus Coupler
Fieldbus Coupler 750-346
WAGO-I/O-SYSTEM 750
DeviceNet
For the connection of small conductor cross sections, we recommend to insert
an insulation stop from series 231-670 (white), 231-671 (light grey) or 231-
672 (dark grey) due to the low kink resistance. This insulation stop prevents a
conductor from kinking when it hits the conductor contact point, and as such
the conductor insulation from also being entered into and clamped in the con-
nection point. Connector marking and housing components, test connectors
including cables and header connectors for cable extensions are available.
The connection point is lowered in such a way that after a connector is in-
serted, installation in an 80 mm high switchbox is possible.
The electrical isolation between the fieldbus system and the electronics is
made via the DC/DC converter and the optocoupler in the fieldbus.
3.1.2.4 Display Elements
The operating condition of the fieldbus coupler or node is signalled via light
diodes (LED).
Four LEDs specific for DeviceNet (OVERFL, RUN, BUSOFF, CONNECT)
indicate the module status (MS) and the network status (NS).
750-346
OVERFL
RUN
BUS OFF
DEVICENET
CONNECT
I/O
NS
MS
Fig. 3-4: Display elements 750-346 g034602x
LED Color Meaning
OVERFL red Errors or faults at the fieldbus coupler.
RUN green Fieldbus coupler is ready for operation.
BUS OFF red Error or malfunction at network
CONNECT green Fieldbus coupler is ready for network communication.
I/O red/
green/
orange
The ‚I/O‘-LED indicates the operation of the node and signals faults
encountered.
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