Operating Steps for TRICONEX AI2351 7400210-010 Analog Input Module

1. Pre-Operation Preparation & Safety Checks

• Compatibility Verification: Confirm the module model (AI2351 7400210-010) is compatible with the target Triconex controller (e.g., Triconex 3600, 3700, 4100) and the system’s backplane (TMR bus). Refer to the Triconex System Compatibility Guide for details.
• Physical Inspection: Check the module for damage (e.g., bent pins, cracked casing, loose components). Do not use the module if physical defects are found—contact TRICONEX technical support for replacement.
• Tool & Material Preparation: Gather anti-static wristbands, torque screwdrivers (with bits matching the module’s mounting screws), insulation testers, calibrated signal generators (for calibration), and the TRICONEX AI2351 Technical Manual.
• Safety Precautions:
  • Ensure the Triconex system power is completely disconnected and lockout/tagout (LOTO) procedures are implemented to prevent accidental power-on.
  • Wear anti-static wristbands and insulated gloves to avoid electrostatic discharge (ESD) damage or electric shock.
  • Work in a clean, dry environment (humidity: 5%–95% non-condensing) to prevent moisture or dust ingress.
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2. Module Installation

1. Backplane Slot Identification: Locate the designated slot on the Triconex system backplane (labeled for analog input modules). Ensure the slot supports the AI2351’s TMR bus communication.
2. Anti-Static Handling: Connect the anti-static wristband to a grounded surface (e.g., the system’s metal chassis) and hold the module by its edges (avoid touching pins or components).
3. Module Insertion:
   • Align the module’s guide rails with the backplane slot’s rails. Slide the module gently into the slot until its backplane connector makes contact with the backplane.
   • Apply even pressure to the module’s front panel until a “click” is heard—this indicates the module is fully seated in the backplane.
4. Secure the Module: Use a torque screwdriver to tighten the two mounting screws on the module’s front panel to the specified torque (typically 0.5–0.8 N·m). Do not over-tighten to avoid damaging the panel or backplane.

3. Wiring Connections

1. Power Wiring (Backplane-Powered): The AI2351 is typically powered by the system backplane (no external power cable required). Confirm the backplane provides the correct voltage (+5VDC or 24VDC, per system specifications) before wiring.
2. Analog Signal Wiring:
   • For 4-20mA current signals (common for field sensors): Connect the sensor’s “signal out” terminal to the AI2351’s input channel terminal (labeled “AIx+,” where “x” = channel number, e.g., AI1+, AI2+). Connect the sensor’s “ground” terminal to the module’s “AIx-” terminal.
   • For voltage signals (e.g., ±10V, 0-10V): Connect the sensor’s “positive output” to “AIx+” and “negative output” to “AIx-.” Ensure the sensor’s signal range matches the module’s configured input range (to avoid overvoltage damage).
   • Use shielded twisted-pair cables for signal wiring to reduce electromagnetic interference (EMI). Ground the cable shield at one end (preferably the controller side) to minimize noise.
3. Isolation Check: If the module requires channel-to-channel isolation (500VDC, per AI2351 specs), ensure no shared ground exists between different input channels.

AI2351 7400210-010 TRICONEX pdf

AI2351 7400210-010 PDF

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