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  • Johannes Hübner Giessen FGH 14 hollow shaft up to Ø 150 mm

Johannes Hübner Giessen FGH 14 hollow shaft up to Ø 150 mm

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Optical hollow shaft encoder with up to 150 millimeter bore

The optical hollow shaft encoder FGH 14 is supplied with a large hollow shaft bore up to 150 millimeters in size. Thanks to its flat style design it is particularly suitable as a base for further attachments. It is easily possible to attach as many as four further devices such as speed switches and absolute encoders or combinations of these without a coupling or flange. The device has a stable, ribbed cast aluminium casing and is available with radial shaft seals and high protection class rating up to IP56 (IP66) for use in permanently oily/wet environments. The precision nickel pulse disk offers up to 4096 pulses. The electronics are integrated in the encoder or rather in the scanning head. A redundant version is available with two identical scanning and evaluation electronics. In addition, the FGH 14 is fitted with a maintenance-friendly replaceable scanning head. The true-running adapter shaft, its axial movement as well as the concentricity of the hollow shaft of the encoder are distinguishing features influencing the precision and low harmonics of the encoder.

Operating and Assembly Instructions FGH 14
Inquiry form - Incremental encoders FGH 14
UL/CSA Certificate of Compliance FGH 14
Catalog - Incremental hollow shaft encoders FGH 14
Diameter hollow shaft up to 150 mm
Supply voltage 12 - 30 VDC
Signal amplitude HTL or TTL
Standard pulse rates 720, 1000, 1024, 1800, 3000, 3600
Output signals 0° channel
Maximum frequency 100 kHz
Device temperature range -25 °C to +85 °C
Degree of protection up to IP66
Weight approx. 25 - 32 kg
Option 90 Second pulse channel as basic channel, however, electrically phase shifted by 90°
Option 2F Twice as many pulses as basic channel by combining the 0° and 90° channels
Option N/N2 Mechanically fixed reference pulse (N), one square pulse per revolution, with inverted signal
Option B Rapid direction of rotation sensing at each edge of 0° and 90° channels
Option G Additional inverted output signals for basic channel, 90° channel, reference pulse including LED check
Option B2 Rapid direction of rotation sensing at each edge of 0° and 90° channels; additional standstill detection
Option S Electronic overspeed switch with two mutually independent, programmable switching points
Option V Electronic doubling of basic channel pulse and the 90° channel through multiple evaluation
Option FOC As an alternative to conventional signal transmissions via copper cables it is also possible to transmit encoder signals via fiber optic cables
Option L2 150 mA power output for basic channel, 90° channel and the corresponding inverted signals
Option J Optically adjusted pulse disk to reduce rotational frequency modulation

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