Connecting The Control Cables; I/O Terminals - ABB ACS350 User Manual

40

Connecting the control cables

I/O terminals

The figure below shows the I/O connectors. Tightening torque is 0.5 N·m / 4.4 lbf. in.
S1
mA
V
Default connection
The default connection of the control signals depends on the application macro in
use, which is selected with parameter 9902. See chapter
connection diagrams.
Voltage and current selection
Switch S1 selects voltage (0 (2)...10 V / -10...10 V) or current (0 (4)...20 mA /
-20...20 mA) as the signal types for analog inputs AI1 and AI2. The factory settings
are unipolar voltage for AI1 (0 (2)...10 V) and unipolar current for AI2
(0 (4)...20 mA), which correspond to the default usage in the application macros.
Voltage and current connection
Bipolar voltage (-10...10 V) and current (-20...20 mA) are also possible. If a bipolar
connection is used instead of a unipolar one, see section
inputs
1...10 kohm
Frequency input
If DI5 is used as a frequency input, see section
to set parameters accordingly.
Electrical installation
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
X1A
Top position: I [0 (4)...20 mA, default for AI2; or -20...20 mA]
S1
Bottom position: U [0 (2)...10 V, default for AI1; or -10...10 V]
on page 102 for how to set parameters accordingly.
Unipolar voltage
SCR
AI
GND
+10V
X1A: 1: SCR
17 18 19
20 21 22
X1B
Bipolar voltage
+10 V GND -10 V
Frequency input
9: +24 V X1B: 17: ROCOM
2: AI1 10: GND
3: GND 11: DCOM
4: +10 V 12: DI1
5: AI2 13: DI2
6: GND 14: DI3
7: AO 15: DI4
8: GND 16: DI5 digital or frequency input
Application macros
Programmable analog
Unipolar/Bipolar current
SCR
AI
GND
Use external power supply.
on page
18: RONC
19: RONO
20: DOSRC
21: DOOUT
22: DOGND
for the
SCR
AI
GND
105 for how