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Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | SDCS-IOB-3 |
| Order Number | 3BSE004086R1 / 3BSE004086R0001 |
| Manufacturer | ABB |
| Product Type | Analog & Encoder I/O Connection Board |
| Compatible Series | DCS800, DCS500 |
| Analog Inputs | 5 channels (configurable voltage/current) |
| Analog Outputs | 3 channels (e.g., speed reference, current actual value) |
| Pulse Encoder Interface | 1 channel (galvanically isolated, supports 5V/12V/24V) |
| Temperature Sensor Supply | Current source for PTC/PT100 (1.5 mA / 5 mA) |
| Connection to Main Control | Via flat cable (X1, X2); max length 1.7 m |
| Mounting | External to DCS module (requires conductive holder) |
| Operating Temperature | -20°C to +55°C |
| Dimensions (Approx.) | 150 × 130 × 50 mm |
| Weight | ~0.5 kg |
| Special Feature | Often available with conformal coating for harsh environments |
Main Features and Advantages
Comprehensive Signal Conditioning and IsolationThe SDCS-IOB-3 consolidates critical I/O functions into a single, robust interface. It features five analog inputs (configurable for ±10V voltage or 0/4-20mA current signals) and three analog outputs, all with built-in filtering and scaling options via onboard jumpers. The pulse encoder input is fully galvanically isolated, protecting the sensitive main control board from ground loops and electrical noise commonly found in industrial plants. This isolation is crucial for maintaining signal integrity in high-interference environments like steel mills.Enhanced Diagnostic and Configuration FlexibilityEngineers can easily configure signal ranges and scaling directly on the board through jumper settings (S1, S2, S3), allowing for quick adaptation to different sensor types without software changes. The board includes a dedicated current source for connecting motor temperature sensors (PTC or PT100), enabling integrated thermal monitoring. When used with the SDCS-CON-4 main control board, it offloads all analog and encoder processing, freeing up the main controller for core drive algorithms.Robust Design for Demanding ApplicationsDesigned for reliability, the SDCS-IOB-3 is built to withstand the electrical noise and vibration typical of heavy industrial drives. Its external mounting design, coupled with strict EMC guidelines for cable routing (max 1.7m flat cable to main board), ensures stable operation. The availability of coated versions provides an extra layer of defense against humidity, dust, and corrosive atmospheres, extending the board’s service life in challenging conditions.
