ABB AO920S 3KDE175531L9200 Analog Output Module

Number of channels: 4 independent analog outputs, supporting current signals (0/4-20mA).

Output accuracy: ±0.1% FS (full-scale error), meeting high-precision control requirements.

Load capacity: Maximum load resistance 500Ω (at 20mA output), compatible with various actuators (such as valve positioners, frequency converters).

Response time: <5ms (from digital signal input to analog output stability).

Power supply requirements: 24V DC ±10%, supporting redundant power supply (dual input).

Protection level: IP20), can be directly installed in the control cabinet.

Bus interface: PROFIBUS DP (9.6kbps to 12Mbps), supports integration with ABB AC800M controllers or third-party systems.

Protocol compatibility: Configuration and diagnosis through FDT/DTM tools, supporting HART protocol.

Operating temperature: -20°C to + 60°C.

Anti-interference ability: Complies with IEC 61000-6-2 industrial electromagnetic compatibility standard, and can resist high-frequency harmonics and radio frequency interference.

Explosion-proof certification: ATEX Zone 1/21 (optional explosion-proof model), suitable for hazardous gas or dust environments.

Industry standards: CE, UL certification, meet EU and North American market access requirements.

Hardware redundancy: ABB AO920S supports dual redundancy of power modules and communication links to ensure continuous operation of the system in the event of a single point failure.

Hot-swap function: ABB AO920S modules can be replaced under power, without downtime for maintenance, reducing production interruptions.

Fault isolation: Each channel is independently electrically isolated (500V AC) to avoid interference and short circuit propagation between channels.

2. Intelligent diagnosis and remote monitoring

Real-time status monitoring: 4-color LED indicators display power, communication, overload, and short circuit status to quickly locate faults.

Self-diagnosis function: ABB AO920S has built-in overcurrent/overvoltage protection, which automatically cuts off the output and sends an alarm signal through the bus when abnormal.

Remote configuration: Remotely adjust the output range and calibration parameters through ABB Ability™ or third-party configuration software.

3. Hazardous area adaptability

Explosion-proof design: ATEX certified models are available, suitable for explosive environments such as petrochemicals, oil and gas, with a protection level of Ex d IIC T6 Gb.

Intrinsically safe interface: ABB AO920S supports connecting intrinsically safe actuators to ensure safe signal transmission in hazardous areas.

4. Flexible scalability

Modular architecture: Can be mixed with other modules of the S900 series to meet complex I/O requirements.

Multi-protocol support: Can be expanded to PROFINET, Modbus TCP and other protocols through gateway modules, compatible with heterogeneous systems.

Petrochemical and chemical industry: In reactor temperature control and distillation tower pressure regulation, the high-precision output of AO920S ensures process stability, and the ATEX-certified model can be deployed in explosion-proof areas.

Papermaking and metallurgy: Used for coating machine speed regulation and continuous casting machine crystallizer liquid level control, supporting redundant configuration to ensure continuous production.

2. Energy and electricity

Wind power and photovoltaic: In converter control and reactive power compensation devices, fast response characteristics (<5ms) improve grid stability.

Substation automation: Cooperate with ABB RELION protection relay to realize remote voltage regulation and load distribution of smart grid.

3. Infrastructure

Water treatment system: Control aeration fan inverter and regulating valve opening, optimize sewage treatment efficiency, support MODBUS protocol and SCADA system integration.

Smart building: Link with ABB i-bus system to adjust central air-conditioning chillers and lighting systems to achieve energy management.