Frame R5I; General; Frame R5I Layout - ABB ACS880-104 Hardware Manual

26 Hardware description
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Frame R5i

General

The DC input and AC output terminals are located at the bottom of the module. The ZCU-12
control unit is mounted underneath the front cover; the control unit contains the basic I/Os
and slots for optional I/O modules. Other optional equipment is primarily installed on separate
mounting plates.
The module should be fitted with external DC fuses. Frame R5i modules have an internal
capacitor pre-charge circuit.

Frame R5i layout

7
6
11
9
10
1
8
3
5
4
2
Item Explanation
1 DC connection
2 AC connection
3 ZCU control unit
4 I/O terminal blocks
5 Slots for optional I/O modules
6 Memory unit
7 Control panel holder
8 Cooling fan
9 Front cover
10 Front cover retaining clip
To remove the front cover, use a screwdriver to
push the clip down, and pull cover outwards by
its bottom edge.
11 Varistor board and EMC filter connecting screws
(VAR and EMC). Should not be present in an
ACS880-104.