Signal conditioner for position sensor
<300 KHz | Mini line
Cognito Quam Electrotechnologies Ltd
The filters remove all types of the ever-present electrical noise (common and differential mode, dV/dt transients, ground loop and common supply generated) in the encoder signal lines as well as the corrupting effects of mechanical vibration (phantom movement, dither) in motion control applications such as multiaxis gearing in the personal care industry, flying saws, welders, extruders and cable/tube production.
The filters reconstruct the encoder signals to reflect the correct encoder position and speed signaling. Performance is safeguarded and problems such as:
* Motion system position drift,
* Home reference loss,
* False triggering of the receiving inputs, and
* Receiving input saturation, latch-up or failure
are eliminated.
The filters are wired in-line between the encoder and the processing equipment and interface in a standard way with the encoder outputs and the processing equipment inputs.
They are all-in-one, value-for-money products, each device addressing all and any combination of known encoder application issues. They process digital quadrature encoder signals with the following features:
* Isolated input and output stages,
* Four selectable modes of digital processing,
* Test mode to simulating the function of a 1024 ppr encoder,
* Supply, signal and unique worn/faulty encoder indication. The fault state is repeated as an isolated,
uncommitted optotransistor output,
* Small DIN rail mountable plastic enclosure of IP40 protection.
The Mini line is offered in a range of input/output options which also allow them to be used as interfaces between different encoder and PLC/drive input card signal types.
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