The Yokogawa AMM12C serves as a Voltage Input Multiplexer Module designed to acquire multiple low-level voltage signals through terminal connections, supporting dual-redundant configurations in CENTUM VP systems.
Hardware Specifications
Model: AMM12C
Brand: Yokogawa
Origin: Japan
Weight: 0.3 Kg
Shipping Weight: 2 Kg
Product Type: Voltage Input Multiplexer Module
I/O Points Per Module: 16
Signal Connection: Terminals
Redundancy: Dual-redundant supported
Dimensions: Not specified
Operating Temp: Not specified
Power Consumption: Not specified
4-20 mA HART Loop Protocol
The AMM12C integrates with 4-20 mA HART loop protocol for deterministic signal acquisition. While channel-to-channel insulation is not specified, system-level grounding and shielding practices are required to maintain signal integrity. The module’s terminal-based wiring supports compatibility with FOUNDATION Fieldbus and Profibus PA networks when interfaced through appropriate converters.
Frequently Asked Questions (FAQ)
Q: Can the AMM12C be hot-swapped during operation? A: Hot-swap capability is not specified. It is recommended to power down the I/O nest before module replacement.
Q: How does dual-redundant operation affect signal acquisition? A: Dual-redundant configuration ensures continuous signal acquisition by maintaining parallel module operation, minimizing downtime during failure events.
Q: What wiring practices are recommended for terminal connections? A: Use shielded cables with single-point grounding to reduce noise coupling. Ensure proper torque on terminal screws to maintain stable electrical contact.
Field Installation Guidelines
Install the module into the designated I/O nest slot.
Connect signal wiring directly to terminal blocks using appropriate torque settings.
Maintain shield grounding at one point to avoid ground loops.
Separate signal wiring from high-voltage cabling to minimize interference.
Verify redundancy wiring paths when dual-redundant operation is required.
