Replacing Acs800 R8I Modules With Acs880 R8I Modules - ABB ACS880-104 Hardware Manual

156 Electrical installation
Replacing ACS800 R8i modules with ACS880 R8i
modules
ACS880 R8i modules can be ordered with option +P942 for mechanical compatibility with
ACS800 R8i modules. A dimension drawing is presented on page 345.
The following procedure explains the additional wiring changes that are required.
WARNING! Repeat the steps described in section
precautions
Safety instructions for ACS880 multidrive cabinets and modules
(3AUA0000102301 [English]). Ignoring the instructions can cause
physical injury or death, or damage to the equipment.
1. Replace the inverter module(s).
2. If needed, connect an auxiliary voltage supply of 230 V AC 50 Hz (standard) or
115 V AC 60 Hz (with option +G304) to X50:4...5 on the module to power the BDPS
(internal power supply of the module) even when the DC link is not live.
3. Replace the RDCU control unit with a BCU-x2 inverter control unit (with a sufficient
number of inverter module connections – see page 250). Connect the control unit to a
24 V DC power supply. (An external power supply is recommended for an inverter unit
consisting of parallel-connected modules; with a single-module configuration,
connectors X53:1 and X53:2 on the module can be used.)
4. Connect the BCU to the inverter module(s) using fiber optic cables. In case of parallel-
connected modules, remove the existing APBU branching unit.
5. If the module is equipped with option +C188 (direct-on-line cooling fan), connect a
3-phase 400 V 50/60 Hz supply to X50:1...3.
6. If the inverter unit is equipped with a DC switch/disconnector and charging controller,
connect terminals V50 and V60 of the inverter module to the charging controller using
fiber optic cables.
Note: With an ACS880 R8i module used with the ACS800 charging circuit, only one
charging cycle in five minutes is allowed.
on page 146. The complete safety instructions are given in
Electrical safety