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Product Description
The Yokogawa AAI835-S03 is a high-performance 16-channel analog output module designed for precise process control in distributed control systems (DCS). Engineered as part of Yokogawa’s FIO (Field I/O) series, this module converts digital control commands from the control system into reliable analog signals for actuators, valves, and other field devices.
The module supports both current (4–20 mA DC) and voltage (1–5 V DC) outputs, providing versatility for a wide range of process control applications. Its compact, modular design allows installation in redundant configurations within ESB/ER bus node units and field control units of CENTUM and ProSafe platforms. Channel-to-channel isolation (depending on version) ensures minimal interference between outputs, maintaining signal integrity in complex industrial environments.
Technical Specifications
| Feature | Details |
|---|---|
| Module Type | Analog Output Module |
| Number of Channels | 16 |
| Output Signal Types | 4–20 mA DC (Current), 1–5 V DC (Voltage) |
| Isolation | Channel-to-Channel (version-dependent) |
| Dimensions (W×H×D) | 107.5 × 32.8 × 130 mm |
| Weight | 0.3 kg |
| Terminal Block Type | Pressure Clamp Type (compatible terminal required) |
| Installation | ESB/ER bus node units, Field Control Units |
Key Features
- Reliable operation in continuous industrial environments
- Supports both current and voltage outputs for different actuator types
- Compact footprint suitable for modular DCS configurations
- Full compatibility with Yokogawa CENTUM and ProSafe systems
Applications
- Driving control valves and actuators in process automation
- Variable speed drive control
- Redundant process control configurations in critical loops
FAQ
Q: Can this module operate with both voltage and current signals simultaneously?
A: No, each channel can be configured for either current or voltage output, but not both simultaneously.
Q: Is this module suitable for safety-instrumented systems (SIS)?
A: Yes, it can be integrated into ProSafe-RS systems, but always verify redundancy and configuration for critical applications.
Q: Are there similar models with higher channel density?
A: Yokogawa AAI835-S01/S02 provide similar functionality with different channel arrangements and isolation features.
