WAGO-I/O-SYSTEM 750
Assembly
69
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
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5.6.1
Inserting the Fieldbus Coupler/Controller
1.
When replacing the fieldbus coupler/controller for an already available
fieldbus coupler/controller, position the new fieldbus coupler/controller so
that the tongue and groove joints to the subsequent I/O module are engaged.
2.
Snap the fieldbus coupler/controller onto the carrier rail.
3.
Use a screwdriver blade to turn the locking disc until the nose of the locking
disc engages behind the carrier rail (see the following figure). This prevents
the fieldbus coupler/controller from canting on the carrier rail.
With the fieldbus coupler/controller snapped in place, the electrical connections
for the data contacts and power contacts (if any) to the possible subsequent I/O
module are established.
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24
V 0V
+ +
- -
PE PE
0
1
0
2
C
D
B
A
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i
x
l
oosen
Re
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ease
l
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g
L
o
c
king
d
i
sc
Figure 30: Unlocking lug of extended ECO coupler
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5.6.2
Removing the Fieldbus Coupler/Controller
1.
Use a screwdriver blade to turn the locking disc until the nose of the locking
disc no longer engages behind the carrier rail.
2.
Remove the fieldbus coupler/controller from the assembly by pulling the
release tab.
Electrical connections for data or power contacts to adjacent I/O modules are
disconnected when removing the fieldbus coupler/controller.
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