ABB S800 I/O - Page 94

*HQHUDO,QIRUPDWLRQDQG,QVWDOODWLRQ8VHU¶V*XLGH
&KDSWHU &RQILJXUDWLRQ
84 3BSE 020 923R101
Figure 3-11 shows a typical wiring diagram for parallel operation when more
capacity is needed. Figure 3-12 shows a wiring diagram for redundant mains.
)LJXUH  6'RU6': LU LQJ'LDJUDPIRU 3DUD OOHO2SHUDWLRQ
)LJXUH  6'RU6' : LULQ J'LD JUDPIRU5HGX QGDQW0DLQV
SD811/812
CI810/
L
N
PE
a.c.
24V
d.c.
L+
L-
DCOK
SD811/812
L
N
PE
a.c.
24V
d.c.
L+
L-
DCOK
L+ L- SA SB
To MTUs
or Field
+
-
SD811/812
CI810/
L
N
PE
a.c.
24V
d.c.
L+
L-
DCOK
SD811/812
L
N
PE
a.c.
24V
d.c.
L+
L-
DCOK
L+ L- SA SB
To MTUs
or Field
+
-
Mains A
Mains B