ABB ACS880-07 - Default I;O Diagram of the Supply Control Unit (UCU-22

Default I/O diagram of the supply control unit
(UCU-22…24)
The diagram below shows the default I/O connections on the supply control unit (A51),
and describes the use of the connections in the supply 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
Not in use by default
B1
1
2
3
4
A2
BGND3
SHIELD4
Drive-to-drive link termination switch.XD2D TERM
ON
1
RS485 connectionX485
Not in use by default
B5
5
6
7
8
A6
BGND7
SHIELD8
X485 bias selection switchX485 BIAS
ON
1
X485 termination switchX485 TERM
ON
1
CAN busXCAN
Not supported
CANH9
9
10
11
12
CANL10
CGND11
Control cable shieldSHIELD12
CANopen termination switchXCAN TERM
1
ON
Relay output 1XRO1
XRO1: Running
1)
(Energized = running)
Norm. closedNC111
12
13
11
250 V AC / 30 V DC, 2 A
CommonCOM112
Norm. openNO113
Relay output 2XRO2
XRO2: Fault (-1)
1)
(Energized = no fault)
Norm. closedNC221
22
23
21
250 V AC / 30 V DC, 2 A
CommonCOM222
Norm. openNO223
Relay output 3XRO3
156 Control units of the drive