The FC-ISO-C Inputs are single ended open collector, NPN, or differential line driver encoders. They have complementary inputs and are rated for 4.5 to 7.5 and 12 to 26VDC at frequency response up to 1MHz. Optical isolation separates the input signals from three complementary open collector outputs rated for 5 to 36VDC that can be used in single ended configurations.

The FC-ISO-D Inputs are single ended open collector, NPN or differential line driver encoders. They have complementary inputs and are rated for 4.5 to 7.5 and 12 to 26 VDC at frequency response up to 1 MHz Optical isolation separates the input signals from three differential line driver rated for 5 VDC. #Totem pole output vs open collector on encoder driver Both isolators are setup via dipswitches located on the top here and bottom here (Zoom in). These are the same style hardware as some of our communications and signal conditioners which are slim line housing. They are DIN rail mountable or direct panel mountable via these mounting holes located on the tabs. You can find the agency approvals and specs for these FC Series encoder signal conditioners/opto isolators on our website at: Don’t forget: we sell other signal conditioners and isolator as well. #Totem pole output vs open collector on encoder series #Totem pole output vs open collector on encoder series.#Totem pole output vs open collector on encoder driver.

This CUI Devices’ blog, A Comparison of Common Encoder Output Signals by Jason Kelly, Motion Control Design and Applications Engineer at CUI, explains the inner workings of encoder output circuitry to help engineers choose the optimal encoder for each application. On the other hand, external pull-up resistors must be added, which increase power consumption and limit the output slew rate.įortunately, other configurations are available that allow engineers to overcome these disadvantages and deal effectively with other issues such as noise and interference. Many encoders have open-collector outputs, which can simplify interfacing with other devices, particularly if voltage-level shifting is required. In addition, the choice of output circuit topology influences aspects of system performance such as power consumption, speed range and noise immunity. The resolution required, as well as dimensions and mounting type, also need to be considered. To choose the optimum device for a given application, engineers must decide between absolute, incremental or commutation encoders, which present data in various formats such as quadrature, motor-pole or a serial protocol. Position encoders are widely used in motion control applications and many different types are available.

Totem pole encoder