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

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Manufacturer: Mitsubishi Electric
Product No.: AJ65BT-64RD3
Country of origin:Stany Zjednoczone
Product Type: RTD Input Modules
Payment: T/T, Western Union
Weight: 1400g
Dimensions: 65 mm x 151.9 mm x 63 mm
Shipping port: Xiamen
Warranty: 12 months

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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

Manufacturer	Mitsubishi Electric
Part Number / Model	AJ65BT-64RD3
Module Type	CC-Link RTD Temperature Input Unit
Number of Channels	4
Compatible Sensors	Pt100, JPt100 (3-wire type)
Measurement Range	-180 to 600 degC (both Pt100 and JPt100)
Resolution	0.025 degC
Sensor Output Current	1 mA
Accuracy (25 degC +/- 5 degC)	+/- 0.1% of full scale
Accuracy (0 to 55 degC)	+/- 0.25% of full scale
Conversion Speed	40 ms / channel
CC-Link Station Type	Remote Device Station (Ver.1, occupies 4 stations)
Isolation Method	Photocoupler isolation (between inputs and CC-Link line; non-isolated between channels)
Withstand Voltage	500 VAC for 1 minute (between power, communication, input, and ground terminals)
Insulation Resistance	10 MOhm or more (at 500 VDC)
Power Requirements	24 VDC (18 to 30 VDC allowable), 0.17 A
Terminal Connection Type	7-point terminal block (M3.5 screws) for power and CC-Link; 27-point terminal block (M3.5 screws) for sensor I/O
Operating Temperature	0 to 55 degC
Storage Temperature	-20 to 75 degC
Ambient Humidity	10 to 90% RH (non-condensing)
Dimensions (H x W x D)	65 mm x 151.9 mm x 63 mm
Weight	0.38 kg (Shipping Weight: 1.4 kg)

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.

Key Features:

#MELSEC #RTD Input Modules

What sensor types are compatible with the AJ65BT-64RD3?

The module is compatible with 3-wire Pt100 and JPt100 platinum resistance temperature detectors (RTDs).

What is the conversion rate of this temperature input unit?

The AJ65BT-64RD3 features a fast conversion speed of 40 milliseconds per channel.

Does the AJ65BT-64RD3 provide isolation between individual channels?

No, while there is photocoupler isolation between the sensor inputs and the CC-Link communication/power line, individual channels are not isolated from each other.

What terminal block type is used for wiring connections?

The unit features removable 2-piece terminal blocks with M3.5 screws: a 7-point block for power and communication, and a 27-point block for RTD channel connections.

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TECHNICAL SPECIFICATIONS

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