Q02HCPU-A Mitsubishi MELSEC-Q Series Programmable controller CPU
Discontinued by Mitsubishi Electric (Factory Automation) — we can still source the original Q02HCPU-A (new, used or refurbished, subject to availability). Request a quote below.
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Quick facts
| Availability | Confirmed on request |
| Category | Mitsubishi MELSEC-Q Series – CPU |
| Lifecycle | Discontinued |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
Can I still buy the Q02HCPU-A now that it is discontinued?
Yes. Mitsubishi Electric (Factory Automation) has discontinued the Q02HCPU-A, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.
When can Q02HCPU-A be shipped?
Q02HCPU-A is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up Q02HCPU-A in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for Q02HCPU-A and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for Q02HCPU-A, subject to availability and destination.
The Mitsubishi Electric Q02HCPU-A is a programmable controller CPU in the MELSEC-Q Series. Number of input points: 4096, number of I/O device points: 8192, program capacity: 28K steps, basic operation processing speed (LD X0): 34 ns, program memory capacity: 144K bytes, external interface: RS-232, with memory card interface for A mode. Mitsubishi Electric has discontinued it (2018/09 Discontinued); PartnerPLC sources discontinued Mitsubishi parts on the surplus market for maintenance of existing machines. Specifications and manuals below are Mitsubishi Electric's own data.
Specifications
Product
| Series | MELSEC-Q Series |
| Category | Programmable controller CPU |
| Type | A mode |
| Sales status | 2018/09 Discontinued (Mitsubishi Electric) |
| Outline | Number of input points: 4096, number of I/O device points: 8192, program capacity: 28K steps, basic operation processing speed (LD X0): 34 ns, program memory capacity: 144K bytes, external interface: RS-232, with memory card interface for A mode |
Specifications
| Control method | Stored program cyclic operation |
| I/O control mode | Refresh mode |
| Programming language: Sequence control language | Relay symbol language, logic symbol language, MELSAP-II (SFC) |
| Processing speed: Sequence instruction | 34 ns/step |
| Constant scan | 10...190 ms (setting is available in increments of 10 ms by parameter) |
| Program capacity: Main sequence program | Maximum 28K steps |
| Program capacity: Sub sequence program | None |
| Memory capacity | 144K bytes of built-in RAM + 144K bytes of built-in ROM |
| Number of I/O device points | 8192 points (X/Y0...1FFF) |
| Number of I/O points | 4096 points (X/Y0...FFF) |
| No. of device points: Internal relay (M) | 7144 points (M0...999, M2048...8191) Total 8192 points shared by M, L, S |
| No. of device points: Latch relay (L) | 1048 points (L1000...2047) Total 8192 points shared by M, L, S |
| No. of device points: Link relay (B) | 8192 points (B0...1FFF) |
| No. of device points: Timer (T) | 2048 points (Default: 256 points) 100ms timer (T0...199) : Setting time: 0.1...3276.7 s 10ms timer (T200...255) : Setting time: 0.01...327.67 s 100ms retentive timer (none for initial) : Setting time: 0.1...3276.7 s Expansion timer (T256...2047) : Time set by word device (D, W, R) 1ms timer (None for initial) : Setting time: 0.001...32.767 s (The latter half of the retentive timer can be used by Z |
| No. of device points: Counter (C) | 1024 points (Default: 256 points) Normal counter (C0...255) : Setting range 1 to 32767 times Interrupt counter (none for default) : C224...255 possible depending on setting Expansion counter (C256...1023) : Count value set by word device (D, W, R) |
| No. of device points: Data register (D) | 8192 points (D0...8191) |
| No. of device points: Link register (W) | 8192 points (W0...1FFF) |
| No. of device points: Annunciator (F) | 2048 points (F0...2047) |
| No. of device points: File register (R) | 8192 points (R0...8191) |
| No. of device points: Step relay (S) | 0 points (None for default) Total 8192 points shared by M, L, S |
| No. of device points: Accumulator (A) | 2 points (A0, A1) |
| No. of device points: Index register (V, Z) | 14 points (V, V1...6, Z, Z1...6) |
| No. of device points: Pointer (P) | 256 points (P0...255) |
| No. of device points: Interrupt pointer (I) | 32 points (I0...31) |
| No. of device points: Special relay (M) | 256 points (M9000...9255) |
| No. of device points: Special register (D) | 256 points (D9000...9255) |
| Latch (data retention during power failure) range | L1000...2047 (default) (Possible to setup latch ranges for L, B, T, C, D, W) |
| RUN/PAUSE contact | One contact can be set up in X0 to X1FFF for each of RUN and PAUSE. |
| Comment | Maximum 4032 points (Set with the unit of 64 points) |
| Expanded comment | Maximum 3968 points (Set with the unit of 64 points) |
| Switch output mode from STOP to RUN | Select "Set the output status at STOP to RUN. (Default)" or "Output after operation execution." |
| Self-diagnostics function | Watchdog error supervision Error detection in the memory, CPU, I/O, battery, etc. |
| Operation mode when there is an error | Select STOP or continue |
| Start-up method at RUN | Initial start (upon power supply on/power restoration after power failure, automatic restart by turning the RUN switch of the CPU or ON.) |
| Print title registration | YES (128 characters) |
| Keyword registration | YES |
| I/O assignment | Possible to register number of occupied I/O points and module model names. |
| Step operation | Possible to execute or stop sequence program operations. |
| Interrupt processing | Possible to operate an interrupt program by the interrupt module or constant period interrupt signal. |
| Data link | MELSECNET/10, MELSECNET(II), MELSECNET/B |
| Clock function | Year, month, date, hour, minute, second, and day of week (automatic leap year detection) Accuracy: -3.18...+5.25 s (TYP. +2.12 s)/d at 0 ˚C Accuracy: -3.93...+5.25 s (TYP. +1.90 s)/d at 25 ˚C Accuracy: -14.69...+3.53 s (TYP. -3.67 s)/d at 55 ˚C |
| Allowable momentary power failure time | The time differs depending on the power supply module used. |
| Internal current consumption (5 V DC) | 0.64 A |
| External dimensions: Height | 98 mm |
| External dimensions: Width | 27.4 mm |
| External dimensions: Depth | 89.3 mm |
| Weight | 0.20 kg |
Specifications
| Operating ambient temperature | 0...55 ˚C |
| Storage ambient temperature | -20...75 ˚C |
| Operating ambient humidity | 10...90 %RH, non-condensing |
| Storage ambient humidity | 10...90 %RH, non-condensing |
| Vibration resistance: Compliant with JIS B 3502 and IEC 61131-2: Under intermittent vibration | Frequency: 5...9 Hz, Half amplitude: 3.5 mm Frequency: 9...150 Hz, Constant acceleration: 9.8 m/s 2 Sweep count: 10 times each in X, Y, Z directions |
| Vibration resistance: Compliant with JIS B 3502 and IEC 61131-2: Under continuous vibration | Frequency: 5...9 Hz, Half amplitude: 1.75 mm Frequency: 9...150 Hz, Constant acceleration: 4.9 m/s 2 |
| Shock resistance | Compliant with JIS B 3502 and IEC 61131-2 (147 m/s 2 , 3 times each in 3 directions X, Y, Z) |
| Operating atmosphere | No corrosive gases |
| Operating altitude | 0...2000 m |
| Installation location | Inside a control panel |
| Overvoltage category | II or less |
| Pollution degree | 2 or less |
| Equipment class | Class I |
Downloads & documentation
Official documents from Mitsubishi Electric (Factory Automation), downloaded directly from the manufacturer.
Data sheets & manuals
| QCPU-A (A Mode) User's Manual (SH-080065-N) | PDF · 4.36MB |
| QCPU(A mode) CPU Module User's Manual (Hardware) (IB-0800084-P) | PDF · 2.87MB |
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