Encoders

Dunkermotoren MG 2 Magnetic Pulse Generator

Name: MG 2 Dunkermotoren MG 2 Magnetic Pulse Generator
SKU: MG 2

The Dunkermotoren MG 2 is a magnetic pulse generator that works contact-free and wear-free using Hall sensors and a magnetic ring, providing two square-wave signals with 90° phase shift for speed and direction sensing. Resolution depends on motor pairing: 2 ppr (8 cpr) on the G 30 and hooded GR 42 builds, or 12 ppr (48 cpr) on the open GR 42 bui...

Output is open collector on the G 30 and hooded GR 42 builds, and open collector with pull-up on the GR 42. The supply range is 3.9–24 Vdc. Protective hoods in IP 54 or higher are available on request.

Typical applications include conveyor and material handling systems, general-purpose motion control, and basic speed and direction feedback wherever a full incremental encoder is not required.

The MG 2 pairs with the Dunkermotoren GR 30 and GR 42 geared motor series it is designed to mount to, adding contact-free speed and direction feedback without changing the motor’s footprint.

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Dunkermotoren MG 2 magnetic pulse generator ring encoder with lead-out wires for G 30 DC motors.

Features

Hall-sensor and magnetic-ring sensing runs contact-free, so there is nothing to wear out or re-shim over the life of the drive
Two square-wave channels 90° apart give direction as well as speed, so the controller can tell forward from reverse
Wide 3.9–24 Vdc supply range means it drops into 5 V, 12 V and 24 V control systems without a level-shifting stage
Open-collector output interfaces directly with standard PLC and controller inputs, with pull-up fitted on GR 42 builds
Protective hoods to IP 54 or higher are available on request, so the same generator can move into dustier installations
One generator covers two motor pairings — the resolution is set by which build you specify, so there's no separate part number to source for each

Specifications

Dunkermotoren MG 2 Magnetic Pulse Generator Specifications
Encoder Type	Magnetic Pulse Generator
Compatible Motor Series	GR 30, GR 30S, GR 42
Resolution
Pulses per Channel	2 ppr (G 30, GR 42 with hood) 12 ppr (GR 42)
Counts per Revolution	8 cpr (G 30, GR 42 with hood) 48 cpr (GR 42)
Output Signal	2 square wave signals, 90° phase shift
Electrical
Nominal Voltage	24 Vdc
Supply Voltage Min.	3.9 Vdc
Supply Voltage Max.	24 Vdc
Input Current	20 mA
Output Type	Open collector (G 30, GR 42 with hood) Open collector + pull-up (GR 42)
Output Voltage (Low max.)	0.5 Vdc
Rise Time	1 µs (RL=1k2Ω, CL=20pF)
Fall Time	1 µs (RL=1k2Ω, CL=20pF)
Signal Pulse Width	180° ±15°
Signal Phase Shift	90° ±15°
Environmental
Operating Temperature	−25 to +85°C
Protection Class	IP 30 (IP 54 or higher on request)
Connection
Lead-Out Wires	4 leads, AWG24, 500 mm
Lead Assignment	Brown = +5 Vdc to +24 Vdc \| Yellow = A \| Blue = 0 V \| Green = B
Technology
Sensing Method	Hall sensors and magnetic ring
Wear	Contact-free, wear-free
Notes	MG 2 (G 30) - For G 30 / GR 30 / GR 30S motors. Open collector output. Without protective hood. MG 2 (GR 42) - For GR 42 motors. Open collector output. Without protective hood. MG 2 (GR 42 hood) - For GR 42 motors. With protective hood.

Technical Drawings

Downloads

dunkermotoren-mg-2-magnetic-pulse-generator-datasheet.pdf

Warranty & Returns

Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.

FAQs

What resolution does the MG 2 provide?

Resolution depends on motor pairing: 2 ppr (8 cpr) on the G 30 and hooded GR 42 builds, or 12 ppr (48 cpr) on the open GR 42 build. Confirm your motor pairing before ordering, as the two configurations are not interchangeable.

What is the difference between the G 30, GR 42 (with hood) and GR 42 configurations?

The G 30 and hooded GR 42 builds use an open collector output at 2 ppr (8 cpr). The open GR 42 build adds a pull-up resistor and steps up to 12 ppr (48 cpr). All three share the same Hall-sensor, contact-free sensing method.

What supply voltage does the MG 2 require?

The MG 2 operates from 3.9 Vdc to 24 Vdc, letting it run directly from common 5V, 12V or 24V control rails without a dedicated supply or level-shifting stage.

Which Dunkermotoren motors is the MG 2 compatible with?

The MG 2 is compatible with the GR 30, GR 30S and GR 42 geared motor series, mounting directly to the motor without changing its footprint.

What protection class does the MG 2 offer?

The MG 2 is IP 30 as supplied. Protective hoods rated IP 54 or higher are available on request for dustier or harsher installations.

Does the MG 2 wear out over time?

No. The MG 2 senses position using Hall sensors and a magnetic ring, so operation is contact-free with no brushes or wear surfaces to service over the life of the encoder.

What applications suit the MG 2?

Typical applications include conveyor and material handling systems, general-purpose motion control, and basic speed and direction feedback wherever a full incremental encoder is not required.

How do I confirm the right MG 2 configuration for my motor?

Contact sales@powerbox.com.au with your motor series (G 30, GR 30S or GR 42) and hood requirement to confirm the correct MG 2 resolution and output configuration.

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