OMEGA Engineering, Inc. Heavy Duty Precision Industrial Encoder ZDH

The ZDH Series of sensors are heavy-duty, extremely rugged, reliable, yet compact encoders designed for harsh factory and plant floor environments. These encoders are flange mount and conform to NEMA 4, and 13 (IP66) standards. Applications Typical applications include motion control feedback, machine control, process control, elevator controls, conveyors, textile equipment, robotics and food processing. Open Collector Output Wiring The ZDH Series of sensors have open collector outputs. An open collector output brings the uncommitted collector of the encoder switching device to the external world. Because the collector element is not associated with the sensor supply voltage, the sensor output collector may be “pulled up” to external voltages different than the encoder supply voltage (40 Vdc maximum). NPN open collector outputs are current sinking devices. An output signal will not be generated unless a pull-up resistor is connected from the open-collector to the positive side of an external supply. The same supply can be used for powering the unit and for the pull-up resistor.