ABB ACS880-204, Hardware Manual

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R Frame ACS880-104-
ohm
50 R1i 004A8-3, 006A0-3, 008A0-3, 003A6-5, 004A8-5, 006A0-5, 008A0-
5
130 R2i 0011A-3, 0014A-3, 0018A-3, 0011A-5, 0014A-5, 0018A-5
66 R3i 0025A-3, 0035A-3, 0044A-3, 0050A-3, 0025A-5, 0030A-5, 0035A-
5, 0050A-5
33 R4i 0061A-3, 0078A-3, 0094A-3, 0100A-3, 0061A-5, 0078A-5, 0094A-
5
Charging resistance of the supply or inverter module. R
The minimum value of the total effective charging resistance allowed for the supply or inverter
module. R
min
The user must activate and tune the charging function in the control program. For information
on tuning the parameters, see
ACS880 IGBT supply control program firmware manual
(3AUA0000131562 [English]).
￭ Single AC input
Calculate the total effective charging resistance R
tot
from the inverter/supply modules
connected to the DC link.
142 Electrical installation
Checking the charging capacity (frames R1i…R4i)
IGBT supply modules of frames R1i…R4i have internal charging circuit. When the power
is switched on in the common DC system, the DC link capacitors in each inverter and
supply module are charged. The charging current is fed through the supply module(s)
connected to the AC. Due to this, the charging capacity of the supply module(s) has to be
checked.
The ACS880 inverter and supply modules of frame sizes R1i…R4i have a charging circuit
in series with the capacitor bank.
•
In common DC connection, the charging circuits act in parallel.
•
The sum of the charging currents is fed from the supply.
Note: IGBT supply modules of frames R1i…R4i are allowed to be used only with inverter
modules that have charging circuit (eg, ABB inverter modules ACS880-104).
The charging circuit data for each IGBT supply module (ACS880-204) and inverter module
(ACS880-104) are shown in the following tables.
The user must activate and tune the charging function in the control program. For
information on tuning the parameters, see
ACS880 IGBT supply control program firmware
manual (3AUA0000131562 [English]).

Single AC input
Calculate the total effective charging resistance R
tot
from the inverter/supply modules
connected to the DC link.
R
1
… R
n
are the charging resistance values of each module. The following condition must
be fulfilled: R
tot
> R
min
ACS880-204-… Frame
R R
min
ohm ohm
008A0-3 006A6-5 R1i 50 25
0018A-3 0015A-5 R2i 130 20
0035A-3 0029A-5 R3i 66 15
0050A-3 0041A-5 R3i 66 10
0093A-3 0077A-5 R4i 33 5
ACS880-104-… Frame
R
ohm
004A8-3, 006A0-3, 008A0-3, 003A6-5, 004A8-5, 006A0-5, 008A0-5 R1i 50
0011A-3, 0014A-3, 0018A-3, 0011A-5, 0014A-5, 0018A-5 R2i 130
0025A-3, 0035A-3, 0044A-3, 0050A-3, 0025A-5, 0030A-5, 0035A-5, 0050A-5 R3i 66
0061A-3, 0078A-3, 0094A-3, 0100A-3, 0061A-5, 0078A-5, 0094A-5 R4i 33
R Charging resistance of the supply or inverter module.
R
min
The minimum value of the total effective charging resistance allowed for the supply or inverter
module.
R
tot
=
1
1
R
1
1
R
2
1
R
n
+ +…+
R
1
… R
n
are the charging resistance values of each module. The following condition must
be fulfilled: R
tot
> R
min
Installing the charging circuit (frames R6i and R8i)
The cabinet builder must install and connect the charging circuit. For connections, see the
example circuit diagrams. Consult ABB for more information on the components and wirings
needed.
Activate and tune the charging function in the control program. For information on tuning
the parameters, see the firmware manual.
Connecting the external power supply cable for the auxiliary
circuit
￭ IGBT supply module (frames R1i…R4i, R6i)
The cabinet builder must arrange an auxiliary voltage of 24 V DC to power up the ZCU
control unit. For more information, see
Control units of the drive .
￭ IGBT supply module (frame R8i) and LCL filter module (frames R6i
and R8i)
Connectors are described in chapter Operation principle and hardware description .
140 Electrical installation