Q172LX Mitsubishi MELSEC-Q Series Motion CPU

MPN: Q172LX · Brand: Mitsubishi Electric (Factory Automation)

Price on request

Discontinued by Mitsubishi Electric (Factory Automation) — we can still source the original Q172LX (new, used or refurbished, subject to availability). Request a quote below.

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

30-day returns, no restocking fee on unused parts

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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 Q172LX now that it is discontinued?

Yes. Mitsubishi Electric (Factory Automation) has discontinued the Q172LX, 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 Q172LX be shipped?

Q172LX 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 Q172LX 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 Q172LX 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 Q172LX, subject to availability and destination.

The Mitsubishi Electric Q172LX is a motion CPU in the MELSEC-Q Series. For 8 axes of servo external signal input (FLS，RLS，STOP，DOG × 8). 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	Motion CPU
Type	Motion controller
Subtype	Servo external signal input
Sales status	2018/09 Discontinued (Mitsubishi Electric)
Outline	For 8 axes of servo external signal input (FLS，RLS，STOP，DOG × 8)

Module specifications

External input signal (FLS, RLS, STOP, DOG): Number of input points	Servo external control signals: 32 points, 8 axes
External input signal (FLS, RLS, STOP, DOG): Input method	Sink/source (photocoupler isolation)
External input signal (FLS, RLS, STOP, DOG): Rated input voltage/current	12 V DC/2 mA, 24 V DC/4 mA
External input signal (FLS, RLS, STOP, DOG): Operating voltage range	10.2 V DC to 26.4 V DC (ripple ratio 5 % or less)
External input signal (FLS, RLS, STOP, DOG): ON voltage/current	10 V DC or more/2.0 mA or more
External input signal (FLS, RLS, STOP, DOG): OFF voltage/current	1.8 V DC or less/0.18 mA or less
External input signal (FLS, RLS, STOP, DOG): Response time: FLS, RLS, STOP	1 ms (OFF to ON, ON to OFF)
External input signal (FLS, RLS, STOP, DOG): Response time: Proximity dog/Speed-position switching signal	0.4 ms, 0.6 ms, 1 ms (OFF to ON, ON to OFF) *CPU parameter setting, default 0.4 ms
Number of occupied I/O points	32 points (I/O allocation: intelligent function module, 32 points)
5 V DC internal current consumption [A]	0.05
Mass [kg]	0.15
Exterior dimensions [mm]	98.0 (H) × 27.4 (W) × 90.0 (D)
Note	1. Compatible model: Q173HCPU(-T), Q172HCPU(-T), Q173CPUN(-T), Q172CPUN(-T), Q173CPU, Q172CPU