ABB ACS880-604

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.See also example 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).

XD2D Drive-to-drive link
1 B
Drive-to-drive link (not in use by default)
2 A
3 BGND
4 Shield
X485 RS485 connection
5 B
Not in use (not in use by default)
6 A
7 BGND
8 Shield
XRO1…XRO3 Relay outputs
11 NC XRO1: Running
1)
(energized = running)
250 V AC / 30 V DC / 2 A
12 COM
13 NO
21 NC
XRO2: Fault (-1)
1)
(energized = no fault)
250 V AC / 30 V DC / 2 A
22 COM
23 NO
31 NC XRO3: Running
1)
(energized = running)
250 V AC / 30 V DC / 2 A
32 COM
33 NO
XSTO XSTO connector
1 OUT XSTO connector. Both circuits (power module, control unit) must be closed for
the brake unit to start. (IN1 and IN2 must be connected to OUT.)
6)
2 SGND
3 IN1
4 IN2
5 IN1
Not in use
6 SGND
7 IN2
8 SGND
XDI Digital inputs
1 DI1 Temp fault
1)
(0 = overtemperature)
2 DI2 Not in use by default
3 DI3 Not in use by default
4 DI4 Not in use by default
5 DI5 Not in use by default
6 DI6 Reset
1)
(0ĺ1 = fault reset)
7 DIIL Not in use by default
XDIO Digital input/outputs
1 DIO1 Not in use by default
2 DIO2 Not in use by default
3 DIOGND Digital input/output ground
4 DIOGND Digital input/output ground
XD24 Auxiliary voltage output
5 +24VD +24 V DC 200 mA
4)
6 DICOM Digital input ground
7 +24VD +24 V DC 200 mA
4)
8 DIOGND Digital input/output ground
DICOM=DIOGND Ground selection switch
5)
XAI Analog inputs, reference voltage output
1 +VREF 10 V DC, R
L
1…10 kohm
2 -VREF -10 V DC, R
L
1…10 kohm
3 AGND Ground
4 AI1+ Not in use by default.
0(4)…20 mA, R
in
= 100 ohm
3)
5 AI1-
6 AI2+ Not in use by default.
0(2)…10 V, R
in
>200kohm
2)
7 AI2-
XAO Analog outputs
1 AO1
Zero
1)
0…20 mA, R
L
< 500 ohm
2 AGND
3 AO2
Zero
1)
0…20 mA, R
L
< 500 ohm
4 AGND
XPOW External power input
1 +24VI
24 V DC, 2.05 A
2 GND
3 +24VI
4 GND
X12 Safety functions module connection
X13 Control panel connection
X205 Memory unit connection
60 Control unit