Is the QX82 a sourcing or sinking input module?
It is a DC input module with negative common type, intended for 24 VDC sourcing field devices
1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.
Mitsubishi
QX82
DC input module, 64 inputs, 24 VDC, MELSEC-Q series
Mitsubishi
From $235.94In stock
Product Description
The QX82 is a 64-point DC input module for Mitsubishi MELSEC-Q (QnU) PLC systems designed for high-density digital input acquisition. It accepts 24 VDC sourcing inputs and uses photocoupler isolation to protect the backplane and adjacent modules from field transients. Default input response is 10 ms with configurable filtering from 1 to 70 ms via PLC parameters, enabling noise immunity and deterministic scan behavior based on application needs. The module employs a negative common arrangement with 32 points per common and presents approximately 5.6 kΩ input impedance. Electrical thresholds are specified at 19 V/3 mA minimum for ON and 11 V/1.7 mA maximum for OFF, supporting robust detection under industrial conditions. It withstands 560 VAC rms across insulation for three cycles at altitudes up to 2000 m and meets insulation resistance of 10 MΩ or greater. This unit integrates into the Q series backplane and interfaces via A6CON style connectors in typical deployments. It is suited for machine I/O concentration, panel space optimization, and applications requiring reliable 24 VDC input sensing across large point counts.
Key Features
- •64-point 24 VDC digital input density
- •Configurable input filter 1 to 70 ms
- •Photocoupler isolated input channels
- •Negative common type, 32 points per common
- •ON threshold ≥19 V and ≥3 mA
- •OFF threshold ≤11 V and ≤1.7 mA
- •Approx. 5.6 kΩ input impedance
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: $711.58
Availability: 1 in stock
Lead time: ~10 day lead
Never Used
Price: $618.52
Availability: 2 in stock
Lead time: ~6 day lead
Used
Price: $235.94
Availability: 67 in stock
Lead time: ~2 day lead
FNFP
Price: $978
Availability: 3 in stock
Lead time: ~2 day lead
Specifications
- Brand
- MITSUBISHI
- Model
- QX82
- Module Type
- DC input module, negative common
- Input Points
- 64 points
- Rated Input Voltage
- 24 VDC (+20/−15%), ripple ≤5%
- Rated Input Current
- Approx. 4 mA
- ON Voltage / Current
- ≥19 V / ≥3 mA
- OFF Voltage / Current
- ≤11 V / ≤1.7 mA
- Input Impedance
- Approx. 5.6 kΩ
- Isolation Method
- Photocoupler
- Response Time (ON/OFF)
- 1/5/10/20/70 ms or less, default 10 ms (set in PLC parameters)
- Common Arrangement
- 32 points per common (terminals 1B01, 1B02, 2B01, 2B02)
- Dielectric Withstand Voltage
- 560 VAC rms / 3 cycles (altitude ≤2000 m)
- Insulation Resistance
- ≥10 MΩ by insulation tester
- Series / Family
- MELSEC-Q (QnU) series
- Weight
- 0.56 lb (0.26 kg)
- Part #
- QX82
- Category
- PLCs/Machine Control
- Category
- PLC Module/Rack
- Weight
- 0.25 lbs
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
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FAQ
Can the input response time be adjusted?
Yes, filtering can be set to 1, 5, 10, 20, or 70 ms in PLC parameters, default 10 ms
What isolation method is used?
Each input uses photocoupler isolation for electrical separation
How many inputs share a common?
The module has 32 points per common across designated common terminals
What are the ON/OFF threshold levels?
ON is ≥19 V and ≥3 mA; OFF is ≤11 V and ≤1.7 mA at 24 VDC