Incremental encoders

Encoder for speed and position measurement in extreme ambient conditions

Heavy industry places tough demands on the reliability and lifetime of the components utilized. That applies in particular to incremental encoders installed to measure and monitor speeds.

No matter if they are installed on drives in steel and rolling mills, in mining operations, in crane systems or in the oil and gas industry, each field of application has its own specifications: from diff erent mounting solutions and extension options to diff erent pulse rates, supplementary signal outputs, integrated FOC transmitters through to stainless steel housings or special certifi cations such as SIL / PL for functional safety and ATEX / IECEx for potentially explosive atmospheres.

The challenge is to provide a tailor-made solution for each task and every mounting situation – and to guarantee the reliability of each and every solution.

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Incremental encoders FG INOX / FGHJ INOX (3798 KB)

Incremental encoder with large hollow shafts (3702 KB)

Short info

Speed measurement and monitoring
Robust and long lasting
Solid shaft, hollow shaft, combinations
Up to 1 million pulses; HTL, TTL, Sin/Cos

Speed measurement

HTL, TTL, Sin / Cos, 4 – 20 mA
Solid shaft designs for flange or foot mounting
Hollow shaft mounting forms up to Ø 150 mm

Options

Second shaft end
Two electronic systems (redundant)
Integrated fibre optic transmitter
Electronic overspeed switch

Our partner, Johannes Hübner Fabrik elektrischer Maschinen GmbH, as a specialist for customised encoder solutions, can serve almost all requirements of heavy industry. The encoders are extremely robust and offer a long service life as well as high reliability.

Series	Types	Fields of applications
FG 41 SIL 3 / FGH 41 SIL 3	solid shaft (flange) \| solid shaft (flange / foot) \| hollow shaft	for safety applications
FG INOX / FGHJ INOX	solid shaft (flange) \| solid shaft (flange / foot) \| hollow shaft	for applications involving corrosive environments
FG 40 / FGH(J) 40	solid shaft (flange) \| solid shaft (flange / foot) \| hollow shaft	for standard applications in heavy industry
FG 40 Ex	solid shaft (flange)	for applications in potentially explosive atmospheres
FGHJ 5	hollow shaft	for applications on inverter-controlled drives with occurring shaft currents
FGH 6	hollow shaft	for applications on main drives
FGH 8	hollow shaft	for applications on main drives
FGH 14	hollow shaft	for applications on main drives
FG 2 / FGHJ 2	solid shaft (flange) \| solid shaft	for applications on standard and auxiliary drives

Product overview

Incremental encoders FG 40 / FGH(J) 40

Versatile for measuring the speed of standard, main and auxiliary drives in steelworks and rolling mills, in mining as well as in harbour and crane systems.
Incremental encoders FGH 6

Incremental encoders with through hollow shaft up to Ø 50 mm. Flat design. Ideal for mounting additional sensors such as speed switches, absolute encoders.
Incremental encoders FGH 8

Extremely robust for main drives. With continuous hollow shaft up to Ø 80 mm. Mounted via insulated adapter flange on the free shaft end or directly on the shaft.
Incremental encoders FGH 14

With continuous hollow shaft up to Ø 150 mm. Direct mounting on shaft. Flat design. Ideal for mounting additional sensors such as speed switches, absolute encoders.
Incremental encoders FG 41 SIL 3 / FGH 41 SIL 3

Extremely robust and specially designed for safety applications in heavy industry. Hollow shafts up to Ø 20 mm, solid shafts up to Ø 14 mm.
Incremental encoders FGHJ 5

Ideal for use on inverter-controlled drives with shaft currents. For hollow shafts with insulated bearings for shafts up to Ø 40 mm.
Incremental encoders FG 2 / FGHJ 2

The incremental optical encoders FG 2 (solid shaft) and FGHJ 2 (hollow shaf) ensure the speed of standard, auxiliary and secondary drives is reliably measured.
Incremental encoders FG INOX / FGHJ INOX

The incremental Inox encoders are resistant to acids, alkalis and seawater. Hollow shafts up to Ø 17 mm. Solid shafts up to Ø 14 mm (flange or foot mounting).
Incremental encoders FG 40 Ex

Versatile use for speed detection on standard, main and auxiliary drives in potentially explosive atmospheres, in the oil and gas industry / petrochemical industry.
Protective cover for incremental encoders

Occupational safety is important, which is why we have introduced a new addition to our well-established FGH 6 encoder system solution: a made-to-measure protective cover that reliably prevents accidents caused by rotating parts.