ABB S800 I/O User Manual page 93

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The SD811 (24V d.c. @ 2.5A) and the SD812 (24V d.c. @ 5.0A) can be used alone
or together for redundancy
configuration which can be used to increase the total output current capacity.
The DCOK signal of the supplies can be connected to the supply monitoring inputs
(SA, SB) of the FCI in the case of redundant supplies.
The SD811 provides enough power to support a fully loaded I/O Station.
The SD812 is mainly used when field devices need to be powered.
SD811
L1
L2 (N)
PE
a.c. 110-240V
104VA
DCOK
DC Adj.
+24V
2.5A
DCOK
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0V
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(Figure 3-10). The supplies can operate in a parallel
SD812
L1
L2 (N)
PE
a.c. 110-240V
207VA
DCOK
DC Adj.
+24V
5A
0V
DCOK
83