This document introduces the overview, usage and precautions of the rdco-01/02/03 ddcs communication option modules.
The RDCO‑01/02/03 modules are optional communication add‑ons for the RMIO Motor Control and I/O board in ABB ACS 800 frequency converters. They provide four fibre‑optic channels (CHO, CH1, CH2, CH3) that can be used for system overrides, I/O extensions, master/follower links, and PC tools.
The manual details safety warnings, mechanical installation, connector layout, and the required electrical and electromagnetic compliance for the modules. It also lists the technical data such as protection rating, voltage, current consumption and supported communication speeds.
| Module types | RDCO-01(C), RDCO-02(C), RDCO-03(C) |
|---|---|
| Degree of protection | IP20 |
| Connectors | 20‑pin pinheader, 4 transmitter/receiver connector pairs for fibre optic cable |
| Communication speed | 1, 2 or 4 Mbit/s |
| Operating voltage | +5 V DC +10% |
| Current consumption | 200 mA max |
| Electromagnetic immunity | IEC 1000‑4‑2, IEC 1000‑4‑3, IEC 1000‑4‑4, IEC 1000‑4‑6 |
| Electromagnetic emissions | EN 50081‑2, CISPR 11 |
The modules draw up to 200 mA maximum.
They are rated IP20.
Each module has four transmitter/receiver connector pairs for fibre‑optic cables.