Key Product Benefits
- 16 isolated output channels for independent control.
- Integrated HART digital communication for smart device setup and monitoring.
- Supports redundant configuration for high-availability systems.
- Fast 10 ms update period for responsive process control.
- Includes convenient KS cable interface adapter for easy wiring.
- High 1500V AC isolation protects your system from faults.
Model Code Explanation
- Base Model: AAI543 (Analog Output Module)
- Channels: 16 Output
- Signal: 4-20 mA
- Isolation: Yes
- Suffix: -H50
- H: With HART Protocol
- 5: No Explosion Protection
- 0: Basic Type, Standard Redundancy Switch-over
- Option Code: /K4A00
- KS Cable Interface Adapter (Model: ATK4A-00)
- For connecting to AEA4D Terminal Board
Complete Technical Data
- Manufacturer & Model: Yokogawa AAI543-H50/K4A00
- Output Channels: 16, Isolated
- Output Signal: 4 to 20 mA DC
- Communication: HART Protocol Enabled
- Redundancy: Standard Switch-over Support
- Accuracy: ±48 µA
- Update Speed: 10 ms Data Period
- Isolation Withstand: 1500 V AC for 1 minute (Output to System)
- Load Resistance: 0 to 750 Ω
- Open Circuit Detection: < 0.65 mA
- Temperature Drift: ±16 µA per 10°C change
- Power Use: 230 mA @5V DC, 540 mA @24V DC
- Connection: KS Cable Interface Adapter Included
- Weight: 0.4 kg
Installation & Connection
- Mount the module in your system rack.
- Use the provided KS adapter to connect cables.
- Wire your field devices (valves, actuators) to the terminal board.
- Power on and configure outputs in your control software.
- Use HART communicator for device parameter setup.
Typical Uses
- Controlling control valves in process plants.
- Speed regulation for pumps and variable frequency drives (VFDs).
- Setting setpoints for other controllers or recorders.
- Any application needing multiple, precise analog control signals.
FAQ & Expert Advice
What is HART protocol and why is it useful?
HART allows two-way digital communication on the same 4-20mA wires. You can read device status, configure settings, and get diagnostics without stopping the analog signal.
Can I use this module without the HART function?
Yes. The module outputs standard 4-20mA. HART is an optional feature you can use if your field devices support it.
What does “redundant configuration” mean for this module?
It means you can pair two modules. If one fails, the system automatically switches to the backup with minimal disruption.
What is a common mistake when wiring the load?
Exceeding the 750-ohm maximum load resistance is common. Check your valve or actuator coil resistance plus cable resistance to stay under this limit.
How do I choose between this and a non-HART module?
Choose the AAI543-H50/K4A00 if your field devices are HART-enabled or you plan to upgrade. It offers future-proofing and better diagnostics for smart instrumentation.
Shipping & Warranty Info
- In the Box: 1x AAI543-H50/K4A00 Module with KS Adapter.
- Global Delivery: Shipped via FedEx, UPS, or DHL.
- Quality Promise: Covered by a 12-month warranty.
- Need Help? Email info@oiltechcontrols.com or message on WhatsApp: +86 158 8020 0923.
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Noah Miller –
The AAI543-H50/K4A00 from Yokogawa was shipped immediately and arrived in perfect condition. Installation was simple, and it now controls multiple field devices reliably. We have been using it in a critical process environment, and it handles real-time outputs flawlessly. Support staff were knowledgeable and helped with setup, ensuring smooth commissioning. Very satisfied!