RU1033 - Rotary encoder IFM - Free user manual and instructions

Product Type	Incremental rotary encoder
Brand	IFM
Model	RU1033
Power Supply	5 V TTL or 10...30 V HTL depending on version
Outputs	A, B, index 0 with inverted signals
Short-circuit Protection	Outputs protected to 0 V (5 V TTL) or to 0 V and L+ (HTL, max. 1 min)
Max. Cable Length	100 m (5 V TTL), 300 m (10...30 V HTL)
Connection	Male 15-pin connector or 5/13-wire cable
Output Phase Shift	90° between A and B for rotation direction detection
Zero Index	One pulse per mechanical revolution, usable as a reference mark
Mounting	On a mounting flange with flexible bellows coupling or elastic washer
Main Functions	Conversion of rotary motion into pulses, measurement of linear and angular displacements, position determination
Maintenance and Cleaning	Avoid shocks to the shaft, use a flexible coupling to compensate for misalignment
Safety	Disconnect power before connection, insulate unused wires, maintain a minimum distance of 20 cm from interference sources
Output Signals	Pulse digital signals, differential outputs for filtering interference
Accessories	Mounting flange E60033, cables to be obtained separately

Frequently Asked Questions - RU1033 IFM

How to connect the IFM RU1033 rotary encoder?

Connection is made either via a male 15-pin connector (reference ifm1000.xx) or via a 5 or 13-wire cable (ifm1013.xx). The pins are indicated in the manual: L+ (power supply), 0 V (ground), outputs A, B, index 0 and their inverted signals. Always disconnect power before connecting or disconnecting.

What is the supply voltage for the RU1033?

The encoder is available in two versions: 5 V TTL and 10...30 V HTL. Check the housing label for the exact version. For the HTL version, the voltage can range from 10 to 30 V DC.

What are the output signals of the RU1033?

The encoder provides digital pulse signals on outputs A, B and index 0, as well as their inverted signals (A neg., B neg., index 0 neg.). Outputs A and B are 90° out of phase to detect the rotation direction. The zero index is output once per mechanical revolution.

What is the maximum cable length for the RU1033?

For the 5 V TTL version, the maximum length is 100 m. For the 10...30 V HTL version, it is 300 m. Use appropriate cables and maintain a distance of at least 20 cm from interference sources.

How to protect the encoder against short circuits?

The outputs are short-circuit protected: for the 5 V TTL version, protection to 0 V; for the HTL version, protection to 0 V and L+ (max. 1 minute). Unused wires must be insulated to avoid short circuits.

How to correctly mount the rotary encoder?

Fix the encoder onto a mounting flange (e.g., E60033) avoiding shocks to the shaft. Use a flexible bellows coupling or elastic washer to compensate for shaft misalignment. Never use a file or similar tool on the shaft.

What to do with unused wires during connection?

Unused wires must be individually insulated to prevent direct short circuits or inadvertent connections between conductors. Do not let them come into contact with other wires or metal parts.

How to detect the rotation direction with the RU1033?

Outputs A and B are 90° out of phase. Depending on the pulse sequence (A before B or B before A), the electronic module can determine the rotation direction (clockwise or counterclockwise).

What is the zero index (index 0) used for?

The zero index is a single pulse per mechanical revolution of the shaft. It serves as an absolute position reference within one revolution, useful after a power failure to find a reference position.

How to avoid electromagnetic interference on the encoder?

Install cables at least 20 cm away from interference sources. Use shielded cables: the braided shield is connected to the encoder housing. The inverted output signals allow filtering of interference if the downstream electronics use a differential input.

USER MANUAL RU1033 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

output A

output B

0 index

180° 180° 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 Ø50 Ø42 ② 120° Ø6

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:

Type Tested Production monitored TÜV PRODUCT SERVICE NRTL US C

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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TÜV 358826

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