RU1025 - Digital decoder IFM - Free user manual and instructions

Product type	Rotary incremental encoder
Brand	IFM
Model	RU1025
Category	Position sensor / Incremental encoder
Power supply	5 V TTL or 10...30 V HTL depending on version
Output protection	Outputs protected against short circuits to 0 V (TTL) or to 0 V and L+ (HTL, max. 1 min)
Output signals	A, B, Index 0, inverted signals (differential)
Phase shift	90° electrical between outputs A and B
Maximum cable length	100 m (5 V TTL version) / 300 m (10...30 V HTL version)
Connection	Connector ifm1000.xx 15-pin or cable ifm1013.xx (5 or 13 wires)
Housing diameter	Approximately 50 mm
Approximate weight	200 g
Mounting	On mounting flange (ref. E60033) with flexible coupling
Maintenance	Avoid shocks to the shaft; do not use a file or tool on the shaft
Safety	Disconnect power before any connection or disconnection
Cable installation	Minimum distance of 20 cm from interference sources
Shielding	Braided shield connected to encoder housing
Included accessories	Cable or connector depending on version; mounting flange available separately
Documentation	User manual and datasheet available at www.ifm.com
Warranty	Refer to manufacturer's general terms and conditions

Frequently Asked Questions - RU1025 IFM

How to connect the RU1025 encoder?

Standard connection is via the ifm1000.xx male connector (15-pin) or the ifm1013.xx cable (5 or 13 wires). The L+ (sensor) and 0 V (sensor) wires are internally connected to the supply voltage. Disconnect power before connection.

What is the supply voltage of the RU1025 encoder?

Two versions exist: 5 V TTL or 10...30 V HTL. Check the label on the housing for the exact version.

What is the maximum cable length for the RU1025?

The maximum length is 100 m for the 5 V TTL version and 300 m for the 10...30 V HTL version, provided suitable cables are used.

What to do in case of a short circuit on the outputs?

Outputs are protected against short circuits: TTL version to 0 V, HTL version to 0 V and L+ (max. 1 minute). After a short circuit, check the wiring and power up again.

How to mount the RU1025 encoder on a shaft?

Use a mounting flange (ref. E60033) and a flexible coupling (bellows or elastic washer type) to compensate for shaft misalignment. Avoid shocks to the shaft.

What output signals does the RU1025 provide?

The encoder provides digital signals A, B (90° phase-shifted), Index 0 (once per revolution), and their inverted signals (differential version) for better immunity to interference.

How to determine the direction of rotation with the RU1025?

The direction of rotation is determined by the 90° phase shift between outputs A and B. Depending on the edge order, the electronic module can evaluate the direction (clockwise or counterclockwise).

Can I use the RU1025 encoder outdoors or in humid environments?

The manual does not specify an ingress protection rating. For use in humid environments, check the housing specifications (likely IP65 or IP67) and protect the connectors. Refer to the datasheet on ifm.com.

Where to find the complete datasheet for the RU1025?

The datasheet and accessories are available on the website www.ifm.com. You can also download the manual from that page.

How to maintain the RU1025 encoder?

Avoid shocks or mechanical stress on the shaft. Do not file or use tools on the shaft. Clean the exterior with a dry cloth. Check connections periodically.

USER MANUAL RU1025 IFM

Pure technical line drawing of a mechanical component without any text, numbers, or symbols

Technical line drawing of a mechanical assembly with mounting bracket and motor (no text or symbols)

Function and features

The encoder transforms rotational movement into pulse sequences. These allow the measurement of linear distances and angular movement as well as the determination of positions.

Electrical connection

Disconnect power from the installation before connecting or disconnecting cables or connectors!

Unused wires must be insulated to avoid short circuits and cross faults.

Short-circuit protection

5 V TTL version: outputs short-circuit protected against 0 V

10...30 V HTL version: outputs short-circuit protected against 0 V

and L+ for maximum 1 minute

Standard wiring:

	Flange plug ifm1000.xx ifm1001.xx5-pole
L+ 2 9 12
L+ sensor - 5 2
0V 1 12 10
0V sensor -	10 11
A	3	1	5
A neg.	- 2 6
B	4	3	8
B neg.	- 4 1
0 index	5 6 3
0 index neg.	- 7 4
fault neg.	-	-	7
free	-	-	9
free	-	-	-
screen	housing	11	housing
	ifm1013.xx 5-wire cable 13-wire cable
L+ 1 brown brown/green
L+ sensor - - blue
0V 6 grey white/green
0V sensor - - white
A 2	green	brown
A neg.	- - green
B	4	white	grey
B neg.	- - pink
0 index	5	yellow	red
0 index neg.	- - black
fault neg.	- -	lilac
free	- -	-
free	- -	yellow
screen	3	housing	housing

Wiring is also indicated on the housing cap. If there is a deviation, the encoder must be connected as indicated on the label on the housing cap.

The wires L+ (sensor) and 0V (sensor) are internally connected to the supply voltage. When using external electronics which regulate the supply voltage these wires can be used as test wires. If unused, these wires must be connected to the supply voltage or insulated.

Depending on the version, the electrical connection is made via the cable or via cables to be obtained separately.

When using suitable cables the maximum cable length is 100 m for the 5 V TTL version and 300 m for the 10...30 V HTL version.

The cables must be laid separately from interfering sources, the minimum distance is 20 cm.

The braided screen in the cable is connected to the encoder housing.

Output signals

180^ 180^

output A

output B

0 index

90^

The encoder provides digital pulse sequences at the output stages.

The outputs A and B are electrically offset by 90^ . Thus the direction of rotation can be evaluated in the external electronics.

The combined zero index is provided once in a mechanical revolution of the shaft. In case of power failure it can be used as a reference point within a revolution.

The inverted output signals are used for external electronics with differential voltage input to filter interference.

Installation

Do not hit the shaft, do not use a file or similar tool on the shaft: This could destroy the unit!

The encoder can be screwed to the angle bracket. The shaft should be connected using a flexible bellows or spring disc coupling to compensate for shaft displacement and to protect the encoder against damage.

Linear movements can be transformed into a rotational movement using a measuring wheel or rack and pinion. For mounting the maximum permissible shaft loads of the encoder must be taken into account.

Mounting the angle bracket on a resilient base protects the encoder against too high a stress due to roughness of the material.

Technical line drawing of a mechanical assembly with mounting bracket and motor housing (no text or symbols)

angle bracket E60033

1) reference mark
2) M4 thread / 5mm deep

The data sheet, further documents and suitable accessories are available on our website at www.ifm.com.

Technical line drawing of a mechanical assembly with mounting bracket and motor housing (no text or symbols)

Holder of Certificate: ifm electronic gmbh

Friedrichstr. 1

45128 Essen

GERMANY

Production 20196

Facility(ies):

Certification Mark:

Electronic measuring equipment (encoders)

Product: Electronic measuring equipment (encoders)

Model(s): RAx, ROx, RPx, RBx, RCx, RUx, RVx, RSx, RMs, RNx "x" can be any character (up to 15 digits) and defines configurations, interface, resolution and length.

Parameters: Rated Voltage: 5-30 Vdc Rated Current: max. 370 mA

Remark: When installing, requirements of mentioned Test Standards and Installation Guide has to be fulfilled. Supply shall fulfil requirements of limited energy circuit or Class 2 power.

Tested UL 61010-1:2004 according to: CAN/CSA-C22.2 No. 61010-1:2004

The product was voluntarily tested according to the relevant safety requirements and mentioned properties. It can be marked with the certification mark shown above. The certification mark must not be altered in any way. This product certification system operated by TÜV SÜD America Inc. most closely resembles that described by ISO/IEC Guide 67, Conformity assessment - Fundamentals of product certification, System 3. See also notes overleaf.

Test report no.: 028-71370093-000

Date, 2010-08-18

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