ABB ACS880-07XT Series, Hardware Manual

Page: 99 / 168

Control units of the drive 99
Notes:
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).
1)
See section Drive-to-drive link (XD2D) .
2)
See chapter Safe torque off function .
3)
0 = Acceleration/deceleration ramps defined by parameters 23.12/23.13 in use.
1 = Acceleration/deceleration ramps defined by parameters 23.14/23.15 in use.
4)
Constant speed 1 is defined by parameter 22.26.
5)
See section DIIL input (page 100 ).
6)
Total load capacity of these outputs is 4.8 W (200 mA at 24 V) minus the power taken by
DIO1 and DIO2.
7)
Determines whether DICOM is separated from DIOGND (ie. common reference for
digital inputs floats; in practice, selects whether the digital inputs are used in current
sinking or sourcing mode). See also
Ground isolation diagram .
DICOM=DIOGND ON: DICOM connected to DIOGND. OFF: DICOM and DIOGND
separate.
8)
Current [0(4)…20 mA, R
in
= 100 ohm] or voltage [0(2)…10 V, R
in
> 200 kohm] input
selected by switch AI1 . Change of setting requires reboot of control unit.
9)
Current [0(4)…20 mA, R
in
= 100 ohm] or voltage [0(2)…10 V, R
in
> 200 kohm] input
selected by switch AI2 . Change of setting requires reboot of control unit.

External power supply for the control unit (XPOW)
The BCU-x2 is powered from a 24 V DC, 2 A supply through terminal block XPOW. A
second supply can be connected to the same terminal block for redundancy.

DI6 as a PTC sensor input
A PTC sensor can be connected to this input for motor temperature measurement as
follows. The sensor can alternatively be connected to FEN-xx encoder interface module.
Do not connect both ends of the cable shield directly to ground. If a capacitor cannot be
used at one end, leave that end of the shield unconnected. See the firmware manual for
parameter settings.
T
3.3 nF
> 630 V AC
PTC
DI6
+24VD