Frames R1I To R4I; General; Frame R1I Layout - ABB ACS880-104 Hardware Manual

ACS880-104 inverter modules can be used to construct inverter units with a power rating
from 2.5 kW up to several megawatts. Up to approximately 500 kW, inverter units consist
of one module only; higher power ratings are achieved by connecting multiple modules in
parallel.
All inverter modules have coated circuit boards as standard.
The dimension drawings of the inverter modules are presented in a separate chapter.
￭

Frames R1i to R4i

General

The DC input terminals are located at the top of the module; the AC output are located at
the bottom. The ZCU-14 control unit is mounted onto the module; the control unit contains
the basic I/Os and slots for optional I/O modules. Other optional equipment is primarily
28 Operation principle and hardware description
installed on separate mounting plates.
Layout drawings
The module should be fitted with external DC fuses. Frame R1i...R4i modules have an
internal capacitor pre-charge circuit.
The following figures show the layout of the IGBT supply modules and LCL filters.
IGBT supply module (frames R1i and R2i)


Frame R1i layout

Frame R1i is pictured (frame R2i has a similar layout).
Frame R1i is pictured (frame R2i has a similar layout).
12
Item
1
1
3
2
8
3
4
6
5
6
5
4
7
6
8
7
9
10
6
11
9
3
10
12
2
11
Explanation
DC connection (obscured)
Item Explanation
1 DC (output) connection (obscured)
AC connection (obscured)
2 AC (input) connection (obscured)
3 Grounding/clamping plates for power
Grounding/clamping plates for power cables
cables
4 ZCU control unit
ZCU control unit
5 Power unit
6 Slots for optional I/O modules
Power unit
7 I/O terminal blocks
8 Grounding/clamping plate for control
Slots for optional I/O modules
cables
9 Memory unit
I/O terminal blocks
10 Control panel connector
11 Air temperature sensor
Grounding/clamping plate for control cables
12 Cover with recess for control panel
(can optionally be left out)
Memory unit
Control panel connector
Air temperature sensor
Cover with recess for control panel (can optionally be
left out)
Hardware description 23