This document is about the user manual for CMS current measurement system
This document provides instructions for installing and operating the ABB CMS Current Measurement System. It includes safety warnings, mounting procedures for the control unit and various sensors, cabling guidelines, and configuration options via the touch display. The system measures AC, DC, and mixed currents using sensors connected via a flat cable CMS-Bus. Up to 32 sensors can be connected per interface. Technical specifications for different sensor models are detailed, including measurement ranges, accuracy, and dimensions.
The manual also covers MODBUS RTU communication for remote data retrieval, sensor addition/removal, polarity adjustment, and display settings. Safety precautions emphasize proper installation by qualified personnel and handling of hazardous waste. The document is dated 01.07.2014 and includes technical drawings and FAQs for troubleshooting.
| Measurement Range (18 mm Sensors) | 80 A, 40 A, 20 A |
|---|---|
| Measurement Range (25 mm Sensors) | 160 A, 80 A, 40 A |
| Accuracy (AC, 80 A) | ±0.5% |
| Sampling Rate | 5000 Hz |
| Insulation Voltage | 690 VAC/1500 VDC |
Up to 32 sensors can be connected to each CMS-Bus interface.
24V DC is needed for supply.
The maximum cable cross-section is 2.5 mm².