Flexem FR-A0400M Precision Analog Expansion Module - 0-10V/0-20mA Stock

Product Introduction

The Flexem FR-A0400M is a high-performance analog data acquisition module engineered for the FR series PLC platform. Utilizing a 16-bit high-resolution Delta-Sigma converter, this module delivers professional-grade signal fidelity for critical process variables. It supports a versatile dual-mode input architecture, capable of processing bipolar voltage signals (±10V) and standard current loops (0–20mA). With an ultra-slim 18mm housing, the FR-A0400M is the ideal solution for high-density analog monitoring in modern automated control systems.

Configuration Hierarchy: Suffix Tree

• FR-A0400M — High-Resolution Analog Input Module
  • └─ FR Series — Flexem Modular Expansion Architecture
  • └─ A — Analog Signal Processing Logic
  • └─ 04 — Input Channels: 4-Point High-Resolution AI
  • └─ 00 — Output Channels: None (Input-Only Variant)
  • └─ M — Mixed Signal Range (Software Configurable Voltage/Current)

Core Engineering Specifications

• Manufacturer: Flexem
• Model: FR-A0400M
• Resolution: 16-bit (65,536 increments)
• Input Signal Range:
  • Voltage: -10V to +10V DC (Bipolar support)
  • Current: 0 to 20mA (4-20mA via software scaling)
• Conversion Precision: ±0.2% Full Scale Range
• Full Scale Customization: -30,000 to +30,000 engineering units
• Input Impedance: Voltage >200K Ω / Current <250 Ω
• Maximum Input Safety: Voltage: 30V / Current: 30mA
• Dimensions: 111 * 18 * 76 mm (Slim-profile DIN-rail mount)
• Wiring Structure: Removable terminal block for rapid maintenance

Global PLC Spare HUB's Insight

The FR-A0400M is a "Precision Specialist" for engineers who require more than standard 12-bit granularity. In our field evaluations, the 16-bit resolution proved vital for long-range ultrasonic level sensors and high-accuracy pressure transducers where every millivolt correlates to significant process changes. The M variant's ability to handle bipolar ±10V is a standout feature, making it compatible with specialized sensors used in test benches and hydraulic positioning that cross zero-point references. Its removable terminal block significantly simplifies field replacement, ensuring that wiring remains intact during module swaps.

Field Application & Diagnostic Power

• Target Machinery: Chemical dosing systems, hydraulic press feedback, HVAC air handling units, and environmental monitoring stations.
• Diagnostic Power: Features real-time register mapping for signal health. Engineers can diagnose sensor drift or wiring "open-loop" conditions by monitoring the customized full-scale values in the PLC software.
• Signal Integrity: Integrated digital filtering suppresses high-frequency noise from VFDs and power surges, providing a stabilized "clean" signal for PID control loops.

Commercial Logistics & Quality

• Condition: New & Original (Factory Sealed)
• Warranty: 12 Months Comprehensive Factory Warranty
• Dispatch Window: Ships within 24-48 hours
• Global Express: Priority delivery via FedEx, UPS, or DHL

Technical FAQ (Field Engineering Guide)

• Q: How do I implement a 4-20mA signal if the range is listed as 0-20mA?
• A: Since the FR-A0400M uses customizable scaling (-30,000 to +30,000), you simply calibrate the software offset. Set your 4mA reference to your lower limit and 20mA to your upper limit. The 16-bit resolution ensures no loss of accuracy in the 4mA dead-band.
• Q: Does the module require an external power supply for sensors?
• A: The module's internal bus provides logic power, but for the analog loop itself, 2-wire and 4-wire transmitters typically require their own 24VDC excitation source. Always verify your loop power budget before installation.
• Q: What is the benefit of the >200K ohm voltage input impedance?
• A: High input impedance prevents "loading" the signal source. This ensures that the voltage measured by the module is a true representation of the sensor's output without causing signal attenuation over long cable runs.
• Q: Can I mix voltage and current inputs on the same module?
• A: Yes. Each of the 4 channels can be individually wired and configured for either voltage or current signals, providing maximum flexibility for systems that use mixed feedback (e.g., pressure and position).
• Q: Selection Guidance: When should I choose the FR-A0400M over a standard 12-bit analog card?
• A: Choose the FR-A0400M whenever your process requires high-precision scaling or bipolar voltage (±10V) capability. Standard cards often lack the "Customized Full Range" flexibility that this 16-bit module offers for precision PID loops.

Tags