Williams Controls • Internal shaft • Measurement angle 48.5° • Dual-redundant outputs • Fail-safe outputs • Voltage or PWM output options • Environmentally robust The WM-830 is a cost-effective rotary sensor utilising proven Hall-effect technology to ensure accurate and reliable measurement of angular position. Mechanical engagement with the rotating portion of the sensor is via a slotted cavity, while the electrical output span corresponds to a rotation of 48.5°. Operation is from a 5V supply, typically derived from the electronic control unit to which the sensor is connected. Dual on-board circuits are electrically isolated from each other, so providing truly independent voltage outputs - one at 50% the level of the other - thereby allowing the host electronics to detect output errors. Further integrity is provided as the outputs enter pre-defined states in the event of connection errors to the sensor. PWM output options are also available on request. A robust mechanical design offers exception levels of performance with respect to water and dust, shock, vibration and temperature, meaning the sensor is ideal for use in hostile, on- and off-highway vehicle environments. Connection to the WM-830 is via the industry-standard, Packard Electric ‘Metri-Pack’ 150 series of connectors, which offer high-reliability performance across all operating conditions.

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INSTALLATION MECHANICAL ELECTRICAL CONNECTIONS Mating connector type: Packard Electric ‘Metri-Pack’ 150 series or equivalent Mating Part Nos: 12066317 (housing) & 402418 (terminal, female)

OPERATIONAL SUPPLY VOLTAGE (Vcc1, Vcc2) NON-OPERATIONAL SUPPLY VOLTAGE (Vcc1, Vcc2) SUPPLY CURRENT OUTPUT CURRENT OUTPUT SHORT-CIRCUIT DURATION TO GND OUTPUT SHORT-CIRCUIT DURATION TO SUPPLY OUTPUT SHORT-CIRCUIT DURATION TO BATTERY VCC SHORT-CIRCUIT DURATION TO BATTERY 20 minutes maximum 20 minutes maximum Parameter Supply Voltage Supply Current Analog Voltage, 01 Analog Voltage, 0 2 Analog Voltage, 0 1 Analog Voltage, 0 2 MECHANICAL MEASUREMENT ANGLE 48.5° ENVIRONMENTAL VALIDATION THERMAL CYCLE / STRESS THERMAL SHOCK HUMIDITY VIBRATION SALT FOG DUST EXPOSURE CHEMICAL EXPOSURE MECHANICAL SHOCK...

MECHANICAL VALIDATION FULL STROKE CYCLES CYCLE RATE TYPICAL OUTPUT CHARACTERISTICS

APPLICATIONS INFORMATION Electronic Control Unit (ECU)

SYSTEM SAFETY INFORMATION System Safety Information During FMEA analysis (Failure Modes and Effects Analysis, otherwise known as Hazard Analysis), Curtiss-Wright Industrial Division Williams Controls (CWID-WMCO) has identified the following potential failure mode of the WM-830 that cannot be mitigated within the sensor assembly: Sensor output APS1 or APS2 could get “electrically stuck” at an arbitrary output signal level within the operating range of the sensor. This potential failure mode cannot be detected and/or resolved within the sensor assembly itself and diagnostic information about this...