AMN11 | Yokogawa Nest for Analog I/O Modules

Product Overview

The Yokogawa AMN11 is an I/O Module Nest for Analog I/O Modules in the CENTUM CS/VP RIO system. It provides the mechanical mounting, backplane connectivity, and terminal block interface for analog input/output modules such as AAM10, AAM11, AAM21, AAM50, and AAM51. The nest supplies 5.0 VDC power from the node interface unit and features M4 screw terminals for robust field wiring connections.

Key Specifications

• Model: AMN11
• Type: I/O Module Nest for Analog I/O Modules
• Number of Slots: 16 slots for analog I/O modules
• Power Supply: 5.0 VDC (from AND50/ANS50/AND20/ANS20 Node Interface Unit or PFCS/PFCD Field Control Station)
• Dimensions: 125 (W) × 130 (D) × 248 (H) mm
• Weight: Max. 2.5 kg (excluding I/O modules)
• Mounting: Node Interface Unit, I/O Expansion Rack, or PFCS/PFCD Field Control Station
• Field Wiring: M4 screw terminals

Environmental Specifications

• Operating Temperature: 0°C to +50°C
• Relative Humidity: 5% to 95% RH (non-condensing)
• Storage Temperature: -20°C to +70°C

Installation Guide

1. Mount the AMN11 in the designated I/O unit area of the node interface unit or expansion rack.
2. Install analog I/O modules (AAM10/11/21/50/51) into the nest slots, ensuring proper seating.
3. Connect field signal cables to the M4 screw terminals according to the wiring diagram.
4. Verify 5.0 VDC power availability from the node interface unit.
5. Perform continuity checks and module detection via CENTUM VP engineering station.

FAQ

• Q: What modules are compatible with AMN11?
  A: AAM10, AAM11, AAM11B, AAM21, AAM21J, AAM50, AAM51, and AMC80 multipoint control modules.
• Q: What is the difference between AMN11 and AMN12?
  A: AMN12 is a high-speed nest for analog I/O modules, specifically designed for LFCS (Loop Field Control Station) applications.
• Q: How many nests can be installed per node?
  A: Up to the maximum I/O unit area capacity; refer to the node interface unit specifications for exact limits.
• Q: Is the nest hot-swappable?
  A: Module replacement is possible with proper procedures; nest replacement typically requires system shutdown.

Selection Tips

• Specify AMN11 for standard analog I/O applications in CENTUM CS/VP RIO systems.
• Use AMN12 only when high-speed analog processing is required for LFCS configurations.
• Ensure the node interface unit has sufficient power capacity for all installed nests and modules.