Ground Isolation Diagram - ABB DCS880 series Hardware Manual

Ground isolation diagram

XAI
1 +VREF
2 -VREF
3 AGND
4 AI1+
5 AI1-
Common mode voltage
6 AI2+
between channels ± 30 V
7 AI2-
8 AI3+
9 AI3-
XAO
1 AO1
2 AGND
3 AO2
4 AGND
5 IACT
XD2D
Isolation
1 B
2 A
3 BGND
XRO1, XRO2, XRO3
11 NC
12 COM
13 NO
21 NC
22 COM
23 NO
31 NC
32 COM
33 NO
XD24
1 DIL
2 +24VD
3 DICOM
4 +24VD
5 DIOGND
XDIO
1 DIO1
2 DIO2
XDI
J6
1 DI1
2 DI2
3 DI3
4 DI4
5 DI5
6 DI6
XENC Encoder
1 A+
2 A-
3 B+
4 B-
5 Z+
6 Z-
7 EGND
8 +VENC
XSMC
1 MCCOM
2 MCNO
3 STOCOM
4 STONO
XSTO
1 OUT1
2 SGND
3 IN1
4 IN2
Common ground
(connected to frame)
Isolation
Isolation
SA_880_012_DCS_a.ai
3ADW000462R0101 DCS880 Hardware Manual e a
Switch J6 settings:
The ground (DICOM) of digital inputs DI1 ...
DI5 and DIL is separated from the ground
(DIOGND) of digital inputs / outputs DIO1,
Open
DIO2 and DI6.
The insulation voltage between them is 50 V.
All digital inputs and outputs share the same
ground, default
Closed
59
Technical data