RV6028 - Digital decoder IFM - Free user manual and instructions

Product type	Incremental encoder (rotary encoder)
Brand	IFM
Model	RV6028
Category	Digital decoder
Supply voltage	5 V TTL or 10...30 V HTL depending on version
Short-circuit protection	5V TTL version: outputs protected against 0V; HTL version: outputs protected against 0V and L+ (max. 1 minute)
Outputs	A, B, index 0, and their inverted signals (A neg., B neg., index 0 neg., fault neg.)
Phase shift between outputs A and B	90° electrical
Zero index	One pulse per mechanical revolution, usable as a reference
Maximum cable length	100 m for 5V TTL version, 300 m for 10...30V HTL version
Minimum distance to parasitic sources	20 cm
Electrical connection	Male connector ifm1000.xx / ifm1001.xx (5-pole) or cable ifm1013.xx (13 wires)
Mounting	Screw onto mounting flange; use a flexible bellows coupling or spring washer coupling
Mounting precautions	Avoid impacts on the shaft; do not use tools on the shaft
Recommended mounting accessory	Mounting flange E60035
Usage	Conversion of rotational movements into pulse sequences for linear/angular displacement measurement and position determination
Maintenance	No particular maintenance; avoid shocks and excessive mechanical stress
Safety	Power off the installation before any connection or disconnection
Shielding	Braided shield connected to encoder housing
Repairability	No spare parts specified; in case of defect, contact IFM after-sales service

Frequently Asked Questions - RV6028 IFM

How to connect the IFM RV6028 incremental encoder?

Consult the wiring diagram in the manual. Use the male connector ifm1000.xx or ifm1001.xx (5-pole) or the cable ifm1013.xx (13 wires). Power off the installation before any connection.

What is the difference between the 5V TTL and HTL versions?

The 5V TTL version operates under 5 V and offers short-circuit protected outputs against 0 V. The HTL 10...30 V version supports a voltage of 10 to 30 V and its outputs are protected against short circuits on 0 V and L+ (max. 1 minute). The maximum cable length is 100 m for TTL and 300 m for HTL.

How to protect the encoder against short circuits?

The outputs are internally protected. For the 5V TTL version against 0 V; for the HTL version against 0 V and L+ (max. 1 minute). Ensure unused wires are insulated to avoid any short circuit.

What is the meaning of signals A, B and index 0?

Signals A and B are pulse trains phase-shifted by 90°, allowing determination of rotation direction. Index 0 is a single pulse per mechanical revolution, used as an absolute position reference.

How to correctly mount the encoder?

Screw the encoder onto a mounting flange (recommended: E60035). Connect the shaft via a flexible bellows or spring washer coupling to compensate for misalignment. Avoid impacts on the shaft and do not use tools such as a file.

What is the maximum allowed cable length?

For the 5V TTL version: 100 m. For the HTL 10...30V version: 300 m. Use shielded cables installed at least 20 cm from parasitic sources.

What to do if the shaft is damaged?

The shaft must not suffer any impact or be filed. In case of damage, the encoder may be destroyed. Contact IFM after-sales service for replacement.

How to determine the rotation direction with the encoder?

The rotation direction is evaluated by the 90° phase shift between outputs A and B. An electronic module analyzes the pulse order to deduce the direction.

Can I use a standard cable for connection?

It is recommended to use the specific cable ifm1013.xx (13 wires) or suitable male connectors. Cables must be shielded and installed away from parasites (minimum distance 20 cm).

Where to find accessories like the mounting flange?

Accessories such as the mounting flange E60035 are available on the IFM website: www.ifm.com. You will find the technical data sheet and other documents there.

USER MANUAL RV6028 IFM

Pure technical line drawing of a mechanical component without any text, numbers, 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 5-pole	ifm1000.xx ifm	1001.xx
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 Kabel13adrig
L+ 1 brown/green
L+ sensor - blue
0V 6 white/green
0V sensor - white
A 2 brown
A neg. -	green
B	4	grey
B neg.	- pink
0 index	5	red
0 index neg.	-	black
fault neg.	- lilac
free	-	-
free	-	yellow
screen	3	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

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.

1) reference mark
2) M3 thread / 5 mm deep

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