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

26 Hardware description

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. For descriptions of the I/O terminals on
the control unit, see chapter
is primarily installed on separate mounting plates.
The module should be fitted with external DC fuses. Frame R1i...R4i modules have an
internal capacitor pre-charge circuit.
Module layout – Frame R1i
(Frame R2i has a similar layout.)
12
The inverter control unit
1
3
8
13
6
5
4
6
7
6
9
3
10
2
11
(page 293). Other optional equipment
Item Explanation
1 DC (input) connection (obscured)
2 Motor (output) connection (obscured)
3 Grounding/clamping plates for power
cables
4 ZCU-14 control unit
5 Power unit
6 Slots for optional I/O modules
7 I/O terminal blocks
8 Grounding/clamping plate for control
cables
9 Memory unit
10 Control panel connector
11 Air temperature sensor
12 Cover with control panel holder (can
optionally be left out)
13 Varistor board connecting screw
(VAR). Should not be present in an
ACS880-104.