SCH94FO
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Industrial Encoders Type SCH94FO Type SCH94FO • Hollow Shaft Fiber Optic Encoder - 0 94 mm • Dual Output Option (Digital & Fiber Optic) • Fiber Optic Transmission up to 2,000 meters (~ 1.25 miles) • No Degradation of Encoder Signal from Electrical Disturbances • High Encoder Frequency and Low Transmission Delay • Added Safety by use of two Redundant Fibers • Built-in Transient Suppression Module The SCANCON SCH94FO is a heavy-duty incremental encoder offering Fiber Optic output. The SCH94FO incorporates the rugged design features of SCANCON’s industry standard SCH94 hollow shaft encoder with the high transmission distance and noise resistant qualities of Fiber Optics. The result is the industry’s first rugged and reliable, dualoutput Fiber Optic encoder. Specifically designed for the Wind Power Industry, the SCH94FO-SA can also be used in Industrial applications which require noise-free signal transmission over distances up to 2000 meters. Utilizing both Fiber Optic cable and a built-in Transient Suppression Module (TSM), the encoder protects against signal disruption by electrical disturbances often encountered during operation of industrial equipment. In addition, the encoder is protected against lightning strikes. The SCH94FO-SA encoder is designed to operate with both a Digital output and a Fiber Optic output. The customer may also choose to use only the Fiber Optic output. The encoder offers Infrared Light transmission. The Infrared Light option allows for a much longer transmission distance (up to 2,000 meters). The SCH94FO-SA encoder is ideal for those applications requiring safe signal transmission over long distances. Rev. 1.7 08. September - 2016 Scancon Huginsvej 8 3400 Hillerod Denmark

Industrial Encoders Type SCH94FO Electrical Specifications Accuracy: +/- 0.8 arc-min. Electrical Protection: Noise Immunity: Vsup = 5V +/- 10% Min. diff. load (Zo): 100 Q Vdiff . > 2.9V @ Zo = 100 Q Vhigh > 3.8V @ Zo = 100 Q Vlow < 0.9V @ Zo = 100 Q Output short circuit, reverse polarity (on some versions only) and transient surge protected through built-in protection module (see TSM details on website) Tested to EN61000-6-2 : 2005 (industrial environments) and EN 61000-6-3 : 2007 (residential, commercial, and light-industrial environments) for Electromagnetic compatibility (EMC) OL7272...

Industrial Encoders Type SCH94FO Output Waveform ■Disk Resolutions (pulses per revolution) 746 4096 Other options on request Pulses per revolution, min. 1 - max. 12.500 Channel tolerance Phase difference tolerance Z channel tolerance Recommended mating shaft Max. radial run out +/-(), 1 Standard Cable Gland

Industrial Encoders Type SCH94FO MM (inches) Output Terminations M23 Connector Power onlyPin Channel Channel 1 B - N/C Connect Cable Shield to mating Connector Housing GND = Circuit Ground Stand ard C able Standard Differential Output OutputChannel Wire Color Wire Color A Pink Pink A - Gray* Gray Vsup Red Red * Gray, Yellow, and Brown are internally connected to Circuit Ground GND = Circuit Ground

Type SCH94FO Power Cable For applications where the Fiber Optic Only (FTI or FSI) Output option is chosen, the customer may choose to use the M23 connector or a Power Only Cable to supply power to the encoder. The M23 connector Power/Ground pin-out is shown above. The Power Only Cable terminates in a “pigtail” with a Brown wire for Vsup and a White wire for Ground. Ordering Code Hollow Shaft Length (Infrared Light) (Infrared Light) Cable Length Fiber Optic Only (Infrared Light) Fiber Optic Only (Infrared Light) Not Reverse Polarity Protected Standard cable (specify cable length) Power Only...