ABB ACS 400 - Connection Examples

ACS 400 User’s Manual 17
M Connection Examples
RS485 Multidrop application
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0...20 mA
SCR
AI1
AGND
+10V
AI2
AGND
AO1
AGND
+24V
DCOM1
DI1
DI2
DI3
DI4
DI5
DCOM2
RO1C
RO1A
RO1B
RO2C
RO2A
RO2B
SCR
AI1
AGND
+10V
AI2
AGND
AO1
AGND
+24V
DCOM1
DI1
DI2
DI3
DI4
DI5
DCOM2
RO1C
RO1A
RO1B
RO2C
RO2A
RO2B
J1 Analog inputs
ACS 400
ACS 400
J1 Analog inputs
DI configuration for
NPN connection (sink)
DI configuration for
PNP connection (source)
Ground the cable screen
on the sourcing end.
X1
X1
SCR
B
A
AGND
SCR
SCR
B
A
GND
B
A
GND
SCR
J2
RS485 interf.
ACS 400
X3
Other Modbus Devices
http://nicontrols.com