
Mitsubishi AQTX81
€ 299,00
Mitsubishi repareren bij Cirele is:
• Duidelijke tarieven zonder onverwachte kosten
• Betaling pas na geslaagde reparatie
• Proactieve vervanging van tijdgevoelige onderdelen
• Gedetailleerd test- en reparatierapport wordt verstrekt
• 2 jaar garantie op alle reparaties
• Langdurige ondersteuning tot einde levensduur.
Mitsubishi AQTX81 – Analog Input Module
The Mitsubishi AQTX81 is an analog input module designed for use with Mitsubishi MELSEC programmable logic controllers (PLCs). It enables the accurate acquisition of analog signals from field devices, allowing seamless integration of sensors and instrumentation into industrial automation systems.
- Manufacturer: Mitsubishi Electric
- Model: AQTX81
- Series: MELSEC System Q
- Type: Analog Input Module
- Input Channels: 8 analog input channels
- Input Signal Range: 0–20 mA / 4–20 mA (selectable per channel)
- Resolution: 12-bit
- Conversion Speed: Approx. 1 ms per channel
- Isolation: Channel-to-PLC opto-isolated
- Mounting: DIN rail or base unit (PLC rack)
- Power Supply: Supplied via PLC backplane
- Dimensions: Approx. 98 x 27.4 x 90 mm (H x W x D)
- Weight: Approx. 200 g
- Operating Temperature: 0°C to +55°C
- Compliance: CE, UL, RoHS
The AQTX81 is ideal for monitoring analog process variables such as temperature, pressure, or flow, and is well-suited for precise data acquisition in factory automation environments.
Condition |
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Common defects
Common defects on a Mitsubishi AQTX81 are:
Power Supply & Hardware
- No power / PLC not starting
- Blown fuses or power components
- Faulty internal power supply module
- Overheating due to poor cooling or fan failure
- Damaged capacitors or power circuits
Input & Output (I/O) Failures
- Digital inputs not responding
- Analog inputs showing incorrect values
- Digital outputs not switching or stuck
- Burnt or damaged relay / transistor outputs
- I/O modules not recognized or defective
Communication Problems
- No communication with HMI or SCADA
- Network issues (Profibus, Profinet, Modbus, Ethernet/IP, CAN, etc.)
- Serial communication (RS232/RS485) failure
- Fieldbus module malfunction
- Outdated or incompatible firmware causing errors
Memory & Software Issues
- Lost parameters or corrupted programs (EEPROM/Flash failure)
- PLC loses program after power-down
- Firmware corruption or software errors
- Faulty or empty backup battery
- Errors during upload/download of program
CPU & Processing Errors
- PLC freezes or resets unexpectedly
- CPU not responding to commands
- Error messages during startup or runtime
- Watchdog timer faults or internal CPU errors
- Synchronization issues with other modules
Mechanical & Physical Damage
- Broken PCB tracks or connectors
- Corrosion due to moisture or chemicals
- Contamination from dust, oil, or dirt
- Burnt components or discolored boards
- Poor solder joints (dry joints)
Other Failures
- Faulty display or diagnostic LEDs
- Non-functional buttons or keypad
- Expansion modules not detected
- Defective internal clock or timers
- EMI/RFI noise due to damaged filters
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