1. Key Specifications

Basic Information

• Model: AIM0006
• Part No.: 2RCA021397A0001H / 2RCA013878H
• Product Type: Mixed I/O Module (Analog Input + Digital Input)
• Weight: Approx. 200 g
• Dimensions (W × H × D): Approx. 120 × 80 × 25 mm

Power Supply

• Operating Voltage: 24VDC ±15% (18–32VDC)
• Power Consumption: ≤6W (normal), max. ≤10W
• Protection: 36VDC overvoltage protection, 1A overcurrent protection, reverse polarity protection

Channel Configuration

Analog Input (AI): 5 channels

• Signal Ranges: 4–20mA, 0–10V, ±10V, PT100 (software configurable)
• Resolution: 16-bit
• Accuracy: ≤0.1%FS
• Isolation: 3kVDC/1min, independent isolation per channel

Digital Input (DI): 4 channels

• Signal Type: 24VDC dry/wet contact, NAMUR
• Response Time: ≤0.3ms
• Max. Operating Frequency: 5kHz

Environmental & Reliability

• Operating Temperature: -30℃ ~ +65℃
• Storage Temperature: -40℃ ~ +85℃
• Humidity: 5%–95%RH (non-condensing)
• Protection Class: IP20 (board level)
• EMC Compliance: IEC 61000-6-2 (industrial standard)

2. Main Functions

1. Signal Acquisition & Conversion

   
   

   Collect analog signals from temperature, pressure, liquid level and vibration sensors, and convert them into digital signals for PLC/DCS. Receive 24VDC digital signals from switches, relays and proximity switches to monitor equipment status.
2. Electrical Isolation & Anti-interference

   
   

   Each channel adopts independent electrical isolation to eliminate ground loop and common-mode interference. Built-in filter, surge suppression and overcurrent protection ensure stable operation in harsh electromagnetic environments.
3. Wide Compatibility

   
   

   Compatible with ABB Relion 615/620 series protection devices and AC500/AC800 PLC systems. Supports Modbus RTU/TCP, Profinet and other communication protocols for connection with third-party devices.
4. Redundancy & Diagnostics

   
   

   Dual power supply redundancy with automatic switchover in case of failure. On-board LED indicators display real-time status of power, communication and channel faults for easy maintenance.

3. Typical Applications

• Power industry: Vibration and temperature monitoring of auxiliary equipment in power plants, signal acquisition for relay protection
• Industrial automation: Closed-loop control of temperature, pressure and flow on production lines, equipment status monitoring
• Rail transit: Signal isolation for traction systems and I/O expansion of on-board equipment
• Oil & gas / Chemical industry: Sensor signal acquisition and safety monitoring in hazardous areas

4. Model Differences

• 2RCA021397A0001H: Standard version with 5AI + 4DI default configuration
• 2RCA013878H: Compatible alternative model with identical functions and pin definitions, only differs in production batch and version.

5. Installation & Maintenance

• Mounting: Standard 3U DIN rail / backplane slot, plug-and-play
• Wiring: Tool-free pluggable orange terminal blocks for convenient field wiring
• Maintenance: No regular calibration required; direct replacement in case of fault to minimize downtime