Encoder cable resists interference in the long run
A
Micronor product story
Edited by the Engineeringtalk editorial team
Jun 22, 2004
Micronor's new MR121 encoder cable is guaranteed to solve nagging ground loop and interference problems in motion control systems.
Micronor's new MR121 encoder cable is guaranteed to solve nagging ground loop and interference problems in motion control systems.
The product uses Micronor's proprietary ZapFree technology which employs fibre-optic technology within the cable assembly, but in a manner completely transparent to the user.
The MR121 product looks and functions like a standard electrical encoder cable.
The equipment operator simply disconnects the existing controller-to-sensor connections and replaces them with corresponding MR121 ZapFree encoder cables.
No engineering redesign is required or needed.
Micronor's MR121 ZapFree technology (patent pending) provides transport of all controller-encoder signals from cable end-to-end via industry-standard 12-pole M23 electrical connectors found on popular encoders.
The encoder's A, B and M outputs (either single-pole or differential line driver formats) are internally converted from electrical-to-optical (E/O) on the encoder end, transported through optical fibres within the cable, and then converted back from optical-to-electrical (O/E) at the controller end.
Controller-sourced shield, power, ground and power/ground sense paths are transported electrically Internal O/E and E/O converters require minimal current and a small regulated tap provides all internal power requirements of the interfaces.
Besides optical fibre's natural resistance to EMI/RFI, ZapFree takes advantage of fibre's exceedingly low loss over distance.
Low transmission loss allows separation of controller and a remote sensor to distances exceeding 1km.
Short or long, Micronor MR121 series ZapFree encoder cables are turnkey solutions for troublesome controller-sensor connections found in many heavy duty industrial and other harsh environment applications; including plant machinery, robotic manufacturing systems, machine centres, elevators, conveyor belts, mining/drilling, radar antennas and transportation.
MR121 ZapFree encoder cables are made to order and any length from 3m to 1km - with other connector options also available.
A typical 15m cable would be $589 each in quantities of 100.
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Contact Micronor
Tel +1 805 499 0114
Other Micronor stories
-
Encoder is compatible with MRI/NMR applications
Micronor's MR318 fibre-optic rotary encoder is designed specifically for use as feedback in motion control systems operating in extreme electromagnetic fields. -
Micronor presents fibre-optic rotary encoder
Micronor has launched the MR316 Zapfree fibre-optic rotary encoder, designed for heavy-duty motor drive applications requiring EMI immunity, Atex compliance and IP66 ingress protection. -
Micronor introduces the MR190 MPG
Micronor's MR190 Universal Manual Pulse Generator/Handwheel (MPG) offers A/A'/B/B' differential line driver and A/B pull-up quadrature outputs. -
Rugged encoders fit into tight spaces
High-resolution analogue-output encoders are ideal for high-reliability and high-precision industrial-automation and process-control applications. -
Fibre optic system receives US patent
The wavelength division multiplexing approach used in Micronor's ZapFREE produces a totally passive encoder using no electronics within the sensor.
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