Encoders

Dunkermotoren RE56 Series High-Resolution Incremental Encoder

Name: RE56TI Dunkermotoren RE56 Series High-Resolution Incremental Encoder
SKU: RE56TI

The Dunkermotoren RE56 and RE56TI are high-resolution incremental encoders that deliver quadrature position and speed feedback for closed-loop motion control. With up to 2,000 pulses per channel and 8,000 counts per revolution, they give control systems the resolution needed to hold precise shaft positions, detect direction of rotation, and main...

Both encoders mount directly to Dunkermotoren brushless DC and geared motors, sharing the motor housing without additional brackets or couplings. The RE56TI variant adds complementary differential outputs (/A, /B, /I) for noise-immune signal transmission — the recommended choice for cable runs beyond 2.5 m between encoder and controller, or installations in electrically noisy environments.

Typical applications include robotics and collaborative automation, conveyor and material handling systems, pump and valve control, and precision positioning in industrial machinery. The standard RE56 is rated to −40°C to +100°C, making it suitable for cold-store and process environments without a specialist build.

The RE 56 series is designed for use with the Dunkermotoren GR42, GR53, GR 63, and GR 80 geared motor series and the BG62 dCore, BG65 dCore, and BG75 dCore brushless EC motors.

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Features

Up to 2,000 ppr (8,000 counts per revolution) resolves finer shaft movement, supporting tighter positioning and smoother running at low speed
Index pulse gives a once-per-revolution zero reference, so the axis re-establishes a repeatable datum without an external home switch
TI line-driver version sends complementary signals (/A, /B, /I) that stay readable through electrical noise on runs beyond 2.5 m
Contact-free sensing leaves no brushes or wear surfaces to service on high-cycle axes
Standard RE 56 rated −40°C to +100°C, so cold stores and hot process areas are covered without a special build
Two resolution options in one part series let you standardise across axes with different precision requirements

Specifications

Data	RE 56	RE 56 TI
Nominal voltage	5 Vdc	5 Vdc
Pulses per channel and revolution	1,000/2,000	1,000/2,000
Counts per revolution	4,000/8,000	4,000/8,000
Interface	A/B/I	A/B/I
Rise time	180 ns	20 ns
Fall time	49 ns	20 ns
Input current	85 mA	165 mA
Output voltage (low-max.)	0.4 Vdc	0.5 Vdc
Output voltage (high-min.)	2.4 Vdc	2.5 Vdc
Output current max.	5 mA	20 mA
Operating temperature	−40°C to +100°C	0°C to +70°C
Protection class	IP 30	IP 30

Selection Table

Model Number	Nominal Voltage	Input Current	Output Current Max.	Interface	Operating Temperature
RE 56	5 Vdc	85 mA	5 mA	A/B/I	−40°C to +100°C
RE 56 TI	5 Vdc	165 mA	20 mA	A/B/I	0°C to +70°C

Technical Drawings

Downloads

dunkermotoren-re-56-incremental-encoder-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 is the difference between the RE56 and the RE56TI, and which should I choose?

Both give the same 1,000/2,000 ppr (4,000/8,000 cpr) A/B/I feedback at 5Vdc. The RE56TI adds complementary differential outputs (/A, /B, /I) for noise-immune signal transmission, and is the recommended choice for cable runs beyond 2.5m between encoder and controller or in electrically noisy installations. Choose the standard RE56 for shorter runs in a cleaner electrical environment.

What resolution does the RE56 series provide?

The RE56 and RE56TI both offer selectable resolution of 1,000 or 2,000 pulses per channel and revolution (ppr), giving 4,000 or 8,000 counts per revolution (cpr) via an A/B/I interface. This lets one part series cover axes with different precision requirements without changing encoder model.

What is the operating temperature range, and does it differ between variants?

The standard RE56 is rated −40°C to +100°C, suiting cold-store and high-temperature process environments without a specialist build. The RE56TI is rated 0°C to +70°C. This is an important distinction when specifying for temperature extremes — confirm the correct variant for your ambient conditions before ordering.

Which Dunkermotoren motors is the RE56 series compatible with?

The RE56 series is designed for the GR42, GR53, GR63 and GR80 geared motor series, and the BG62 dCore, BG65 dCore and BG75 dCore brushless EC motor series. The encoder mounts directly to the motor housing without additional brackets or couplings.

What does the index pulse (I channel) do, and why does it matter?

The I channel provides a once-per-revolution reference pulse. This lets the control system establish a repeatable zero position on start-up or after a fault, without needing a separate external home switch — useful wherever the axis must return to a known reference point reliably.

What is the supply voltage and electrical protection class of the RE56 series?

The RE56 and RE56TI both run from a 5Vdc supply and carry an IP30 protection class as standard. Contact-free magnetic sensing means there are no brushes or wear surfaces to service over the life of the encoder.

Can the RE56 be used in a redundant or safety-related positioning system?

Dunkermotoren's documented redundant-safe configuration pairs a BG motor's integrated MR encoder with the RE30-2-1024 encoder, not the RE56. For redundant or safety-related positioning, contact sales@powerbox.com.au to confirm the correct encoder combination for your application.

What applications suit the RE56 series, and how do I get help selecting the right variant?

Typical applications include robotics and collaborative automation, conveyor and material handling systems, pump and valve control, and precision positioning in industrial machinery. For help selecting between the RE56 and RE56TI, confirming motor compatibility, or sourcing the redundant MR encoder pairing, contact sales@powerbox.com.au.

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