Pepperl+Fuchs MNI40N-0A01K261N-00100 Incremental Rotary Encoder

Technical Overview

Robust MNI40N incremental rotary encoder with 100 pulses/revolution, IP69K, -40 to 100°C operation, and up to 30000 min⁻¹ speed for harsh industrial use.

Key Features

Simple installation and adjustment using assistance functions to reduce costs.
Self-diagnostics, including the magnetic wheel, provide quality assurance.
Internal intelligence provides easy setup and reliable operation.
Elastomer coating on the magnetic wheel provides resistance to dirt, as well as thermal and mechanical shock.
Long service life at high speeds and temperatures.
Magnetic, non-contact detection type for enhanced durability.
High degree of protection: IP67, IP68, and IP69K.

Technical Specification Matrix

Parameter	Value
Detection Type	Magnetic sampling
Operating Voltage	10...30 V DC
No-load Supply Current	max. 55 mA
Output Type	Push-pull, incremental or RS-422, incremental
Voltage Drop	≤ 2.5 V
Load Current	max. per channel 30 mA, short-circuit protected
Output Frequency	max. 1 MHz
Connection	Cable Ø4.7 mm, 8 x 0.128 mm², 2 m PUR
Degree of Protection	IP67, IP68, IP69K (DIN EN 60529)
Operating Temperature	-40...100 °C (-40...212 °F)
Storage Temperature	-40...100 °C (-40...212 °F)
Housing Material	PA
Cable Material	PUR
Magnetic Wheel Material	Steel 1.4021 (AISI 420) ferrite filled cured rubber
Rotational Speed	max. 30000 min⁻¹
Pulse Count	100 pulses per revolution (PPR)
Magnetic Wheel Diameter	Ø10 mm
Shock Resistance	DIN EN 60068-2-27, 200 g, 6 ms
Vibration Resistance	DIN EN 60068-2-6, 40 g, 10 ... 2000 Hz
MTTFd	942 years
Mission Time (TM)	20 years
Diagnostic Coverage (DC)	0 %
Physical Weight (kg)	0.19
Dimensions L x W x H (cm)	3.2 x 4 x 4

Industrial Applications

1. High-Speed Food Processing and Packaging Lines

Provides precise position and speed feedback for conveyors, robotic arms, and rotary tables in demanding food and beverage production environments, ensuring accurate control and repeatability.

Problem Solved

The IP69K rating guarantees the encoder withstands high-pressure, high-temperature washdowns, preventing contamination and ensuring reliable operation in hygienic zones. Its high rotational speed (30000 min⁻¹) allows for accurate control on fast-moving lines, while the non-contact magnetic principle ensures durability against wear and tear in sanitary conditions.

IP69Khygienic designhigh-speedfood & beveragerotational speednon-contactincremental encoder

2. Outdoor Mobile Machinery and Construction Equipment

Offers robust angular position and speed sensing for hydraulic cylinders, steering mechanisms, or motor feedback in heavy-duty mobile machinery and construction equipment exposed to extreme weather, dirt, and vibrations.

Problem Solved

The IP67/IP68 protection ensures functionality even when submerged or exposed to dust, mud, and water, critical for outdoor use. The wide operating temperature range (-40 to 100 °C) allows operation in diverse climates, and its resistance to shock (200 g) and vibration (40 g) ensures reliable performance in rugged and dynamic conditions.

IP67IP68ruggedextreme temperatureshock resistancevibration resistancemobile machineryconstruction

3. Industrial Automation in Dusty or Harsh Environments

Delivers accurate speed and position control for machine tools, conveyor belts, and material handling systems in industrial settings where airborne contaminants like dust, chips, and oil mist are prevalent, such as woodworking or metalworking.

Problem Solved

The magnetic, non-contact detection method is inherently resistant to airborne contaminants like dust and metallic chips that would typically interfere with or damage optical encoders. The IP67/IP68 rating provides strong protection against ingress of solids and liquids, while the robust housing and wide temperature range ensure longevity and precision in demanding industrial automation processes.

Magnetic sensingnon-contactIP67IP68dust resistanceoil mistindustrial automationmachine tools