External Power Supply For The Control Unit (Xpow); Zcu; Bcu; Di6 As A Ptc Sensor Input - ABB ACS880-104 Hardware Manual

Notes:
The wire size accepted by all screw terminals (for both stranded and solid wire) is
2
0.5 ... 2.5 mm (24...12 AWG). The torque is 0.5 N·m (5 lbf·in).
1)
See section Drive-to-drive link
2)
See chapter The 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
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
DICOM=DIOGND ON: DICOM connected to DIOGND. OFF: DICOM and DIOGND
separate.
8)
Current [0(4)...20 mA, R
selected by switch AI1. Change of setting requires reboot of control unit.
9)
Current [0(4)...20 mA, R
selected by switch AI2. Change of setting requires reboot of control unit.

External power supply for the control unit (XPOW)



ZCU

By default, the ZCU control unit is powered from the power module. An external 24 V DC,
2 A power supply for the control unit can be connected to terminal block XPOW. Using an
external supply is recommended if
•
the control board needs to be kept operational during input power breaks, for example,
because of uninterrupted fieldbus communication, or
•
immediate restart is needed after power breaks (that is, no control board power up
delay is allowed).
See also the firmware manual, parameter 95.04.

BCU

The BCU must be powered from a 24 V DC, 2 A power supply. The power supply is
connected to 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
(page 303).
(page 309).
(page 303).
Ground isolation diagram (BCU)
= 100 ohm] or voltage [0(2)...10 V, R
in
= 100 ohm] or voltage [0(2)...10 V, R
in
The inverter control unit 301
(page 308).
> 200 kohm] input
in
> 200 kohm] input
in