ABB ACS880-607LC, Hardware Manual, Page: 50 / 108

Default I/O diagram of the brake control unit
The diagram below shows the default I/O connections on the brake control unit, and describes
the use of the signals/connections. Under normal circumstances, the factory-made wiring
should not be changed. See the delivery-specific circuit diagrams.
The wire size accepted by all screw terminals (for both stranded and solid wire) is 0.5 …
2.5 mm
2
(24…12 AWG). The torque is 0.5 N·m (5 lbf·in).
Description Terminal
Drive-to-drive link XD2D
Not in use by default
B 1
1
2
3
4
A 2
BGND 3
Shield 4
RS485 connection X485
Cooling fan monitoring (CIO module)
B 5
5
6
7
8
A 6
BGND 7
Shield 8
Relay outputs XRO1, XRO2, XRO3
XRO1: Running
1)
(Energized =
running) 250 V AC / 30 V DC, 2 A
Norm. closed NC 11
22
23
31
32
11
12
13
21
33
Common COM 12
Norm. open NO 13
XRO2: Fault (-1)
1)
(Energized = no
fault) 250 V AC / 30 V DC, 2 A
Norm. closed NC 21
Common COM 22
Norm. open NO 23
XRO1: Running
1)
(Energized =
running) 250 V AC / 30 V DC, 2 A
Norm. closed NC 31
Common COM 32
Norm. open NO 33
XSTO connector XSTO, XSTO OUT
XSTO: Factory connection. Both circuits (power module, control unit) must be
closed for the brake unit to start (IN1 and IN2 must be connected to OUT).
2)
OUT 1
5
6
7
8
1
2
3
4
SGND 2
IN1 3
IN2 4
XSTO OUT: Not in use.
IN1 5
SGND 6
IN2 7
SGND 8
Digital inputs XDI
50 The control unit