Mitsubishi Electric AJ65BT-64RD3 CC-Link Temperature Input Unit

Description

For highly precise thermal monitoring within automated industrial environments, the AJ65BT-64RD3 serves as an industrial-grade platinum resistance temperature detector (RTD) input module. This remote device station interfaces directly with CC-Link networks, allowing seamless integration of temperature sensor telemetry into central PLC and DCS systems.

The module supports four independent 3-wire RTD input channels compatible with standard Pt100 and JPt100 sensors. It translates raw analog sensor signals into either 16-bit or high-resolution 32-bit signed binary values, ensuring precise digital conversion. Electrical isolation via internal photocouplers isolates the sensor input circuitry from the CC-Link communication line, safeguarding the network from common-mode voltage spikes and electromagnetic noise.

Features

• Supports up to 4 independent 3-wire RTD channels (Pt100 and JPt100 compatibility).
• Fast conversion speed of 40 ms per channel for real-time monitoring.
• Flexible digital output configuration with 16-bit or 32-bit signed binary modes.
• High-integrity photocoupler isolation between the sensor inputs and the CC-Link transmission system.
• Removable 2-piece terminal block interfaces (7-point and 27-point M3.5 screw terminals) to simplify field wiring and module replacement.

Applications

• Thermal monitoring of industrial furnaces and ovens.
• Chemical and petrochemical process temperature tracking.
• HVAC, refrigeration, and cooling system management.
• Power generation plant turbine and bearing temperature diagnostics.

Technical Specifications

Installation Guidelines

• Install the module inside a clean, dust-free industrial control cabinet rated for IP54 or higher.
• Ensure the system is completely powered down before connecting or disconnecting the CC-Link cable and RTD wiring.
• Utilize CC-Link dedicated cabling to ensure signal integrity across the fieldbus network.
• Ground the shielded wire of the CC-Link cable and connect the module's ground terminal to a low-impedance ground point.
• Maintain a minimum clearance around the module to allow proper heat dissipation.