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Operating life As a solid-state device with no moving parts, the operating life a ZF speed sensor is virtually unlimited. Frequency The measuring range depends on the sensor type and the target, but maximum frequency is generally > 10 kHz. The target geometry must be noted when calculating the frequency. With asymmetrical targets, for example, with narrow tooth widths as compared to the distances between teeth, the time between the leading and trailing edge of the tooth is the governing factor. ZF sensors have maximum response times from approximately 10 pS (MP series) to around 50 pS (GS series), due to the response time of the Hall cell. If the required response time is very close to these limits, it can lead to unexpected results, such as lost counts. Current sink interfacing 3-wire interface Sinking outputs are often used in negative logic applications, where a low signal is required for an active state. There, sinking outputs normally have current flowing into the device output lead when the device is active. Also called “open collector outputs”, sinking outputs are compatible with any logic family because they can be used for a wide range of supply and output voltages. Furthermore, the supply voltage used to power the Hall assembly may differ from the pull-up voltage to which it is connected. The external pull-up resistor connected between the output and supply voltage is required for proper operation. ZF Friedrichshafen AG Cherrystrasse 91275 Auerbach Germany Phone +49 9643 18-0 Fax +49 9643 18-1720 www.switches-sensors.zf.com ZF Electronic Systems Pleasant Prairie LLC 11200 88th Avenue Pleasant Prairie, Wisconsin USA 53158 Phone +1 262 942 6500 Fax +1 262 942 6566 ZF Electronics Asia Limited 2 / F Technology Plaza 29-35 Sha Tsui Road Tsuen Wan, New Territories Hong Kong Phone +852 25 65 66 78 Fax +852 25 65 68 27 ZF Electronics TVS (India) Private Limited Madurai - Melur Road, Vellaripatti, Madurai - 625 122 India Phone +91 452 24 202 08 Fax +91 452 24 203 82 twitter.com/zf_konzern facebook.com/zffriedrichshafen youtube.com/zffriedrichshafenag Unlike passive speed sensors (VR or variable reluctance sensors), a GS sensor has an output amplitude that is independent of input frequency (speed). This means that the sensor does not require a minimum speed. However, it does require some initial movement of the target in order to locate the tooth edge. We therefore prefer to call it a “near-zero-speed” sensor. With the resistor connected as shown, the output will be “pulled up” to the supply voltage (Vcc) level when off and (approximately) to ground when on. Recommended pull-up resistor values * Volts DC 5 9 12 15 24 * Precise values supplied on request. SENSORS Connection grid Sensor series Connector type Vcc Output Ground Direction Speed Wire lead Brown Black Blue n / a n / a Wire lead Red Green Black n / a n / a Wire lead Brown Black Blue n / a n / a Wire lead Red Green Black n / a n / a Wire lead Red - Black White Blue

Contents MP1 MAGNETIC PROXIMITY SENSORS, HALL MP2 MAGNETIC PROXIMITY SENSORS, REED GS GEARTOOTH SPEED SENSORS SD GEARTOOTH SPEED AND DIRECTION SENSORS SD SPEED AND DIRECTION SENSOR KIT AN ANGLE POSITION SENSORS LIN LINEAR POSITION SENSORS VN DIGITAL VANE SENSORS COMPENDIUM AND ADDITIONAL INFORMATION SENSORS FROM ZF deliver unmatched performance and reliability across a wide range of applications. They serve as economical solutions that are suitable for the most rigorous environments, including extreme temperatures, humidity, thermal shock, and vibrations. Choose a standard product or...

MAGNETIC PROXIMITY SENSORS, HALL Integrated position sensors based on Hall technology respond to magnetic fields g enerated by permanent magnets. They provide a sinking current output. ∙∙Solid state reliability Magnetic proximity sensor in an adjustable Digital Hall-effect sensor in a low-profile, Digital Hall-effect sensor in a compact, ∙∙RoHs compliant cylinder housing flange-mount housing plastic, flange-mount housing ∙∙Stable output signal over the entire operating ∙∙Compatible with unregulated power supply ∙∙South pole sensitive ∙∙Flange-mount housing ∙∙South pole sensitive ∙∙North...

MAGNETIC PROXIMITY SENSORS, REED Reed-based sensors with normally open or normally closed contacts that change states when a magnetic field is applied. These sensors act as non-latching electrical switches. ∙∙Hermetically sealed for long life Omnipolar Reed-based sensor in an aluminum Omnipolar Reed-based sensor in a compact Omnipolar Reed-based sensor in in plastic housing ∙∙Zero power consumption in standby threaded housing plastic housing ∙∙Operate / release distances when using a magnetic ∙∙Operate / release distances when using a magnetic ∙∙Operate / release distances when using a...

GEARTOOTH SPEED SENSORS Hall-effect sensors designed for use in applications where ferrous edge detection / near zero speed sensing is needed. They provide a sinking current output. ∙∙Typical airgap of 1.5 mm with recommended Circuit-protected, Hall-effect geartooth sensor Hall-effect speed sensor in an aluminum housing ∙∙Immune to rotational alignment ∙∙Senses motion of ferrous geartooth targets target type ∙∙Immune to rotational alignment ∙∙10-bit dynamic threshold detection for automatically ∙∙Near zero speed sensing capability ∙∙10-bit dynamic threshold detection for automatically a...

GEARTOOTH SPEED SENSORS GEARTOOTH SPEED AND DIRECTION SENSORS Has two Hall-effect sensors, one that detects speed and, in combination with the s econd, detects the direction of movement. They use an open collector (sinking) o utput. The speed output switches from high (Vcc) to low (near zero) when it detects a transition from “no-tooth” to “tooth present”. Features ∙∙Typical airgap of 1.5 mm with recommended Speed sensor in a plastic housing rated to 140 °C target type ∙∙Resistant to fuels, solvents, and lubricants associated ∙∙Highly immune to rotational alignment with engines,...