ABB ACS800-U4 - Fan Replacement (R4, R5); Fan Replacement (Frame R6)

Motor control and I/O board (RMIO)
82
Isolation and grounding diagram
X20
1VREF-
2AGND
X21
1VREF+
2AGND
3AI1+
4AI1-
5AI2+
6AI2-
7AI3+
8AI3-
9AO1+
10 AO1-
11 AO2+
12 AO2-
X22
1DI1
2DI2
3DI3
4DI4
9 DGND1
5DI5
6DI6
7 +24VD
8 +24VD
11 DIIL
10 DGND2
X23
1 +24 V
2GND
X25
1RO1
2RO1
3RO1
X26
1RO2
2RO2
3RO2
X27
1RO3
2RO3
3RO3
Common mode
voltage between
channels ±15 V
J1
(Test voltage: 500 V AC)
or
Jumper J1 settings:
All digital inputs share a
common ground. This is the
default setting.
Grounds of input
groups DI1…DI4 and
DI5/DI6/DIIL are
separate (insulation
voltage 50 V).
Ground
(Test voltage:
4kVAC)
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