Available on working days between 9:00 am to 6:00 pm
Email us: sales2@industriaxplc.com
Available 24/7 for inquiries and support
Description
Yokogawa AAM51 Current Voltage Output Module
The Yokogawa AAM51, also cataloged as the AMM51 Current Voltage Output Module, operates as a dedicated hardware component for converting digital control commands into analog current signals within Yokogawa Distributed Control System (DCS) platforms.
HardwareSpecifications
Parameter
Specification
ModelBrand
Yokogawa AAM51
Origin
Japan
PowerConsumption
24 VDC: ≤38 mA, 5 VDC: ≤10 mA
OutputSignal
4-20 mA DC
OutputVoltageLimit
≤25.5 VDC
DataUpdatePeriod
2 ms (A2SAM505 alone), 22 ms step response
WithstandingVoltage
Field-to-system: 1500 VAC 1 min, 42 VDC
Mounting
I/O nest (A2BA3D)
OutputResolution
High-resolution DAC
AllowableLoadResistance
Up to 750 Ω
GalvanicIsolation
Field-to-system isolated
ProcessControlCharacteristics
Channel-to-Channel Isolation: Provides electrical isolation between output channels to prevent cross-interference and ground loops.
4-20 mA Loop Protocol Support: Compatible with standard current loop interfaces for direct actuator control.
Cold Junction Compensation (CJc): Integrated to maintain output accuracy under fluctuating cabinet temperatures.
FrequentlyAskedQuestions
Q: Does the module support hot-swap replacement? A: No, the AAM51 must be powered down and isolated from the I/O backplane before removal or installation.
Q: What is the maximum load resistance the module can drive? A: The module supports load resistances up to 750 Ω without output degradation.
Q: Can the module detect open-circuit conditions on its output loops? A: Yes, it continuously monitors loop integrity and reports open-circuit or fault conditions to the DCS.
FieldInstallationGuidelines
Mount the module securely on the I/O nest (A2BA3D) using M4 screws.
Ensure field wiring shields are properly grounded at one end to prevent ground loops.
Maintain separation between high-current and signal cables to minimize interference.
Verify supply voltage levels (24 VDC system, 5 VDC internal) before powering the module.
Confirm output channel wiring polarity matches the actuator or device requirements.
