AAM11 YOKOGAWA CENTUM CS/VP Datasheet & Technical Manual

AAM11 YOKOGAWA CENTUM CS/VP Analog Input Module

AAM11 YOKOGAWA CENTUM CS/VP Analog Input Module

Disponibilidad: 99 Quedan en stock

YOKOGAWA AAM11 Analog Input Module The YOKOGAWA AAM11, also cataloged as the AAM11 Analog Input Module, operates as a dedicated...

Código: AAM11

Manufacturer: Yokogawa
Product No.: AAM11
Product Type: Analog Input Modules
Product Origin: Japan
Payment:T/T, Western Union
Weight: 700g
Shipping port: Xiamen
Warranty: 12 months

Descripción Reseñas

YOKOGAWA AAM11 Analog Input Module

The YOKOGAWA AAM11, also cataloged as the AAM11 Analog Input Module, operates as a dedicated hardware component for high-density 4-20 mA current loop acquisition and galvanic signal isolation within CENTUM CS and CENTUM VP distributed control system platforms.

Hardware Specifications

Parameter	Specification
Model	AAM11
Brand	YOKOGAWA
Origin	Singapore
Weight	0.7 kg
Dimensions	7.6 cm x 2.5 cm x 17.8 cm
Operating Temp	-10 deg C to +55 deg C
Power Consumption	400 mA @ 5 VDC
Input Channels	16 (Isolated)
Input Resistance	250 Ohm
Accuracy	+/- 0.1% FS
Data Update Period	100 ms

Signal Conditioning and Galvanic Isolation

The AAM11 utilizes a 250 Ohm shunt resistor configuration to convert incoming 4-20 mA DC current loops into readable voltage levels for the internal analog-to-digital converter. To maintain process integrity, the module features 1500 VAC/min galvanic isolation between the field-side channels and the system bus, effectively mitigating common-mode interference and ground loop potential in large-scale industrial deployments.

Frequently Asked Questions

Q: Does the AAM11 support configurable burn-out detection for connected field transmitters?

A: Yes. The module allows for site-specific configuration of burn-out detection. Users can set the module to respond with either upscale or downscale signals upon detecting an open-circuit fault, facilitating rapid identification of sensor failure by the host controller.

Q: Are the 16 input channels independently isolated?

A: Yes. The design incorporates channel-to-channel and channel-to-bus isolation. This electrical barrier is intended to prevent noise propagation across the module, ensuring that a fault in one transmitter loop does not affect the measurement accuracy of adjacent channels.

Field Installation Guidelines

Mounting: Ensure the module is firmly seated within the I/O nest backplane. Improper mechanical alignment can lead to intermittent contact with the 5 VDC power supply pins, resulting in measurement instability.
Shielding: To maximize signal integrity, terminate the cable shields of the 4-20 mA loops to the designated ground terminal on the I/O nest. Avoid routing signal cables in trays containing AC power lines to minimize induced noise.
Termination: When connecting transmitters, verify the polarity of the loop current. Since the module presents a 250 Ohm load, ensure the transmitter loop power supply is sufficient to overcome the total loop resistance to prevent signal saturation or "low-end" reading errors.

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