ABB AI930B 4-Channel Analog Input for Hazardous Areas
Product Introduction
The ABB AI930B belongs to the S900 I/O family. Engineers use it to connect intrinsically safe field devices in Zone 2, Zone 1, or Zone 0. This module specifically handles 4-20mA signals from loop-powered 2-wire transmitters. Moreover, it supports HART frames via the fieldbus for cyclic HART variables.
One key advantage is its ability for hot swapping. You can replace it during operation without interrupting power. Additionally, the module features short and break detection. This simplifies maintenance significantly. The design also includes electrical isolation between input/bus and input/power. Therefore, it ensures reliable performance in harsh industrial environments.
Key Technical Specifications
ABB AI930B provides four input channels. Each channel shares a common return. The signal type is 4-20mA. HART communication is fully supported. However, redundancy is not available for this variant. Intrinsic safety is included, which allows connection to devices in explosive atmospheres.
Furthermore, the module offers extended diagnostics. You can configure and diagnose it easily via FDT/DTM. The hot configuration in run feature enables changes while the system operates. This reduces downtime significantly.
Environmental and Mechanical Data
The 3KDE175512L9300 is ATEX certified for Zone 2 hazardous locations. It also meets ISA-S71.04 G3 for corrosive atmospheres. The climatic operating conditions allow up to 93% relative humidity at 40°C. The maximum ambient temperature ranges from -20°C to 60°C.
Dimensions are very compact. Width equals 20 mm (0.79 in.). Depth is 104 mm (4.09 in.). Height is also 104 mm (4.09 in.). The weight is only 0.14 kg (0.31 lbs.). Additionally, the module complies with RoHS and WEEE directives.
Frequently Asked Questions (FAQ)
1. Can I use the ABB AI930B with a non-intrinsically safe transmitter?
Yes, but only if the transmitter is installed outside the hazardous zone. For Zone 2, Zone 1, or Zone 0, you must use intrinsically safe field devices.
2. Does this module support HART communication?
Yes, the 3KDE175512L9300 transmits HART frames via the PROFIBUS DP fieldbus. It also supports cyclic HART variables.
3. Can I replace the ABB AI930B while the system is running?
Absolutely. The module offers hot swap functionality. You do not need to interrupt the primary voltage.
4. What happens if a sensor breaks or shorts?
The module includes short and break detection. It will report the fault via diagnostics. This helps you locate issues quickly.
5. Is this module redundant for power or communication?
No, the AI930B variant does not include redundancy. However, the S900 system supports redundancy with other modules. Please check your system configuration.
