QD64D2 Mitsubishi MELSEC-Q Series High-speed counter

MPN: QD64D2 · Brand: Mitsubishi Electric (Factory Automation)

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12-month warranty (new) · 3-month (used/refurbished)

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Quick facts

Availability	Confirmed on request
Category	Mitsubishi MELSEC-Q Series – High-speed counter/pulse input
Lifecycle	Active mature
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can QD64D2 be shipped?

QD64D2 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 QD64D2 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 QD64D2 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 QD64D2, subject to availability and destination.

The Mitsubishi Electric QD64D2 is a high-speed counter in the MELSEC-Q Series. 2 channels, 4 Mpps, count input signal: differential line driver, external input: 24 V DC, coincidence output: transistor output (sink), 40-pin connector. Mitsubishi Electric has announced its discontinuation (2029/09 To be end of order) — plan spares now; PartnerPLC also sources it on the surplus market after the end of order. Specifications and manuals below are Mitsubishi Electric's own data.

Specifications

Product

Series	MELSEC-Q Series
Category	High-speed counter
Type	Differential input
Sales status	2029/09 To be end of order (Mitsubishi Electric)
Outline	2 channels, 4 Mpps, count input signal: differential line driver, external input: 24 V DC, coincidence output: transistor output (sink), 40-pin connector

Specifications

Number of channels	2 channels
Count input signal: Phase	1-phase input (1 multiple/2 multiple), 2-phase input (1 multiple/2 multiple/4 multiple), CW/CCW input
Count input signal: Signal level (øA, øB)	EIA Standard RS-422-A Differential line driver level (AM26LS31 [manufactured by Texas Instruments] or equivalent)
Counter: Counting speed (maximum)	4 multiples of 2 phases: 4M pulse/s 2 multiples of 1 phase, 2 multiples of 2 phases: 2M pulse/s 1 multiple of 1 phase, 1 multiple of 2 phases, CW/CCW: 1M pulse/s
Counter: Counting range	32-bit signed binary values (-2147483648...2147483647)
Counter: Type	Addition method, subtraction method linear counter format, ring counter format preset counter function, latch counter function
Counter: Minimum count pulse width (Duty ratio 50 %)	1 µs (ON/OFF 0.5 µs), Minimum phase difference for 2-phase input: 0.25 µs
Coincidence detection: Comparison range	32-bit signed binary
Coincidence detection: Interrupt	With coincidence detection interrupt function
External input: Preset	24 V DC 2...5 mA
External input: Count value latch	24 V DC 2...5 mA
External output: Coincidence output	Transistor (sink type) output: 2 points/channel 12/24 V DC 0.5 A/point, 2 A/common
External interface	40-pin connector
External interface: Applicable connector	A6CON1, A6CON2, A6CON4 (sold separately)
Number of occupied I/O points	32 points (I/O assignment: Intelligent 32 points)
Internal current consumption (5 V DC)	0.53 A
External dimensions: Height	98 mm
External dimensions: Width	27.4 mm
External dimensions: Depth	90 mm
Weight	0.16 kg