The YOKOGAWA AMN32T S2, also cataloged as the AMN32T Connector I/O Nest Module, operates as a dedicated hardware component for 32-point signal distribution and terminal interface connection within CENTUM CS 3000 R3 platforms.
Hardware Specifications
Parameter
Specification
Model
AMN32T S2
Brand
YOKOGAWA
Origin
Japan
Weight
0.25 kg (250 g)
Dimensions
120 mm width standard slot
Operating Temp
0 to 50 deg C
Power Consumption
5.0 W maximum
Supply Voltage Range
20.4 to 28.8 VDC (24 VDC nominal)
Channel Capacity
32 points per nest
Isolation Voltage
500 VAC between channels
Protection Class
IP20
Process Control and Channel Isolation Properties
Galvanic Channel Isolation: Provides 500 VAC channel-to-channel isolation to prevent electrical noise coupling and ground loop currents across sensitive I/O loops.
4-20 mA HART Loop Compatibility: Accommodates high-density analog current loop routing and digital communication pass-through across CENTUM DCS control networks.
Integrated Hardware Diagnostics: Supports real-time self-diagnostic monitoring to continuously detect open-circuit line conditions and power supply voltage anomalies.
Frequently Asked Questions
Q: What power supply tolerance is permissible for the 24 VDC supply voltage input?
A: The module operates within an acceptable voltage range of 20.4 VDC to 28.8 VDC without degradation of channel logic or diagnostic monitoring.
Q: How is physical wire termination established on the AMN32T S2 nest module?
A: Field connections attach directly via an integrated screw terminal block interface accommodating up to 32 discrete I/O points.
Q: Is online hot-swapping supported for this module inside a CENTUM CS 3000 R3 slot?
A: Yes, live replacement is permitted during system operation, provided base retention screws are fully disengaged and proper static discharge precautions are taken.
Field Installation Guidelines
Align the module housing with the DIN-rail or rack slot guides and slide it firmly into place until the mounting clips lock.
Fasten top and bottom retaining screws to establish ground continuity and prevent vibration-induced mechanical disconnects.
Separate 24 VDC power conductors and signal wiring from high-voltage AC cables by running them through distinct raceways separated by at least 300 mm.
Terminate signal wire shield drains at a single point on the cabinet system earth ground bar to avoid creating earth loops.
