Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAM11, AAM11B |
| Brand | Yokogawa |
| Product Type | Analog I/O Module |
| Input Signal | 0 to 10 VDC; 1 to 5 VDC; 4-20 mA compatible input |
| Input Resistance | 1 Mohm at power-up; 100 kohm at power-down; 250 ohm for current input |
| Allowable Input Voltage | -10 to 30 VDC |
| Allowable Input Current | 40 mA DC or less |
| Transmitter Power Supply | 25.0 to 25.5 VDC; output current limit 60 mA DC or less |
| Auxiliary Voltage Output | 1 to 5 VDC; output resistance 1 ohm or less; allowable load resistance 10 kohm or more |
| Square Root Extraction | Selectable |
| Voltage Input Accuracy | +/-4 mV |
| Current Input Accuracy | +/-16 uA |
| Auxiliary Voltage Output Accuracy | +/-12 mV |
| Ambient Temperature Effect | For 10 deg C change: voltage input +/-4 mV + +/-0.15% of specified value; current input +/-32 uA; auxiliary voltage output +/-24 mV |
| Data Update Period | 50 ms |
| Power Consumption | 300 mA or less at 5.0 VDC |
| Signal Isolation | Input signals isolated between systems |
| Withstanding Voltage | 1500 VAC/min |
| Installation | I/O Module Nest |
| Connection | I/O Module Nest terminals with M4 screws |
Yokogawa Analog Signal and BRAIN Communication
The AAM11B accepts standardized analog signals and also permits non-standard 4-20 mA or 1-5 V signals within its specified electrical input range. The module can supply transmitter power at 25.0 to 25.5 VDC, with an output current limit of 60 mA DC or less.
For compatible transmitters, the AAM11B can work with BRAIN communications. A BRAIN terminal provides the interface for specifying transmitter parameters. The module also provides selectable square root extraction for applicable input processing.
Signal isolation separates input signals between systems. The specified isolation withstands 1500 VAC/min, while the data update period is 50 ms.
Frequently Asked Questions
Q: What input signals does the AAM11B accept?
A: The supplied specifications identify 0 to 10 VDC, 1 to 5 VDC, and 4-20 mA signal handling. The module can also accommodate signals outside standard 4-20 mA or 1-5 V signals within its specified limits.
Q: Can the AAM11B supply power to a transmitter?
A: Yes. It supplies 25.0 to 25.5 VDC, with an output current limit of 60 mA DC or less.
Q: Does the AAM11B support transmitter parameter configuration?
A: Yes. For a transmitter that supports BRAIN communications, a BRAIN terminal can specify transmitter parameters.
Field Installation Guidelines
Install the AAM11B in the designated I/O Module Nest and secure the terminal connections using the specified M4 screws.
Route analog signal wiring separately from high-current power wiring where practical. Maintain proper cable shielding and grounding practices according to the host I/O system installation requirements.
Verify input polarity and signal range before energizing the module. When using the transmitter power output, confirm that the connected transmitter remains within the specified output voltage and current limits.
Check the terminal connections before commissioning. Also verify signal isolation requirements when the module interfaces with equipment belonging to different electrical systems.
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