IFM MQ/IQW Series Inductive Proximity Sensor Switch

Inductive Proximity Sensor Switch, Proximity Sensor Switch, Sensor SwitchIFM

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2025/7/4 Update

Small “flat-pack” square housing
— Pre-wired and quick plug-in, The mounting controllability of ifm’s flat-pack proximity switch is better than that of cylindrical sensors, cylindrical sensors can be installed too deep or too shallow on a machine.

IFM MQ/IQW Series Inductive Proximity Sensor Switch

Technical Features

Adopts a metal-face design, eliminating all fault issues of position sensors used on machines, and the K=1 detection technology provides a uniform sensing range for all target metals.

Diagnostics via IO-Link to predict downtime.

Sends alerts in advance to avoid downtime caused by weld slag accumulation.

Weld-field immune sensors are not affected by electromagnetic field interference in welding environments that can cause false triggers.

Compact design, suitable for installation in tight spaces.

Products + Accessories Selection:

Flat-pack sensor • K correction factor 1

Dimensions (mm)	Sensing range	No. of wires	Output function	Electrical connection	Order No.
20 x 8 x 32	5 mm (Flush mounting)	3	PNP, N.O.	2 m PUR cable	MQ2000
20 x 8 x 32	5 mm (Flush mounting)	3	PNP, N.O.	0.3 m, PUR cable, M8 connector	MQ2001
20 x 8 x 32	5 mm (Flush mounting)	3	PNP, N.O.	0.3 m, PUR cable, M12 connector	MQ2002
20 x 8 x 32	5 mm (Flush mounting)	3	Weld-field immune PNP / NPN, N.O./N.C. programmable	2 m PUR cable	MQ2003
20 x 8 x 32	5 mm (Flush mounting)	3	Weld-field immune PNP / NPN, N.O./N.C. programmable	0.3 m, PUR cable, M12 connector	MQ2004
20 x 8 x 32	5 mm (Flush mounting)	3	PNP/NPN programmable, N.O./N.C. programmable	0.3 m, PUR cable, M12 connector	MQ2005
20 x 8 x 32	8 mm (Flush mounting)	3	Weld-field immune PNP / NPN, PNP, N.O.	2 m PUR cable	IQW200
20 x 8 x 32	8 mm (Flush mounting)	3	Weld-field immune PNP / NPN, PNP, N.O.	0.3 m, PUR cable, M12 connector	IQW201

Mounting Accessories

Description	Order No.
LineRecorder Device, parameter setting software (requires E30390 cable)	QA0011
USB IO-Link master cable, for parameter setting	E30390
Memory plug, for saving sensor parameters, allowing for easy upload without a PC	E30398
M12 Micro DC cable connector (4-pin) 2m, PUR	EVC001
M12 Micro DC cable connector (4-pin) 5m, PUR	EVC002

Specifications:

Supply voltage: 10…30 VDC
Switching frequency: 400 Hz
Ambient temperature: 50…140 °F (-40…85 °C)
Switching status indication: Yellow LED
Operating status indication: Green LED
Housing material: Metal
Sensing face:
- IQ: PBT
- MQ: All metals
Protection rating: IP65, IP67, IP68

Benefits introduce In Detail

Rugged all-metal position sensors reduce downtime in welding applications

New! ifm’s “flat-pack” metal-face inductive proximity switch uses K=1 detection technology and a high-temperature, weld-slag resistant coating to prevent weld spatter adhesion. Weld slag rolls directly off the all-metal housing, ensuring reliable object detection.

ifm also offers versions that are immune to welding fields, which can ignore the electromagnetic interference from welding currents that may cause false triggers. For applications where a flat-pack inductive proximity switch must be close to the welding nozzle and its output must be continuously monitored, ifm’s weld-field immune proximity switches are the ideal choice.

Diagnostics via IO-Link

The flat-pack sensor with an IO-Link port can be set with millimeter precision for 2 switch points and can measure sub-millimeter changes that may shift over time. This feature helps to warn about situations like weld slag accumulation or position drift in welding cells.

Via IO-Link, it is possible to set parameters such as the relative distance to the target, the number of power-ons, operating time, and automatic sensor replacement, thereby preventing downtime.

Designed for Harsh Environments

Thanks to the high-temperature, weld-slag resistant coating, this proximity switch provides reliable switching signals even in demanding applications, ensuring a long service life in the application. ifm’s flat-pack design makes it possible to increase uptime with an outstanding price-performance ratio.