ABB ACS880-107

Default I/O diagram of the inverter control unit (BCU)
The table below describes the use of the connections in the inverter unit. Under normal
circumstances, the factory-made wiring should not be changed.
The wire size accepted by all screw terminals (for both stranded and solid wire) is
0.5 … 2.5 mm
2
(22…12 AWG). The tightening torque is 0.45 N·m (4 lbf·in).
DescriptionTerminal
Drive-to-drive linkXD2D
Drive-to-drive link. Refer to section The XD2D connector (page 89).
B1
1
2
3
4
A2
BGND3
Shield4
Drive-to-drive link termination switch. Must be set to ON when the inverter
unit is the first or last unit in the drive-to-drive (D2D) link. On intermediate
units, set termination to OFF.
D2D.TERM
ON
OFF
RS485 connectionX485
Not in use by default
B5
5
6
7
8
A6
BGND7
Shield8
Relay outputsXRO1, XRO2, XRO3
XRO1: Ready (Energized = Ready)
250 V AC / 30 V DC, 2 A
Norm. closedNC11
22
23
31
32
11
12
13
21
33
CommonCOM12
Norm. openNO13
XRO2: Running (Energized = Running)
250 V AC / 30 V DC, 2 A
Norm. closedNC21
CommonCOM22
Norm. openNO23
XRO3: Fault (-1) (Energized = No fault)
250 V AC / 30 V DC, 2 A
Norm. closedNC31
CommonCOM32
Norm. openNO33
Safe torque offXSTO, XSTO OUT
XSTO: Factory connection. Both circuits must be closed for the drive to
start (IN1 and IN2 must be connected to OUT). Refer to chapter The Safe
torque off function.
OUT1
5
6
7
8
1
2
3
4
SGND2
IN13
IN24
XSTO OUT: Safe torque off output to inverter modules.
IN15
SGND6
IN27
SGND8
Digital inputsXDI
Control units of the drive 85