Encoder Cables Manufacturers in India


An encoder cable transmits encoder output, which may also consist of multiple channels, to a control device. Encoder cable signal transmission can be degraded by many elements including, long transmission runs, excessive cable capacitance and excessive EMI. Properly specified, your encoder cabling can compensate for all three of these issues.


The choice of encoder cable depends upon the stipulations of the utility however there are a few guidelines of thumb:


Twisted-pair wiring minimizes inductance and capacitance in the cable. Installing this type of encoder wiring is especially important over long distances.


Use a minimum of 24-gauge wire.


Shielding is fundamental for noise immunity. A cable that is shielded normally is the bare minimum but in a high-noise environment, individually-shielded wires have to be considered.


To limit voltage drop over long reaches, pick out cable with low resistance and low capacitance.


For very high-noise environments, differential encoders with differential wiring furnish a fantastic way to filter out noise.


For very lengthy distances, reflect on consideration on strengthening the signal with a repeater or encoder splitter.


Choose a connector that provides the environmental protection you require along with a stability of ease-of-use, cost, size, and availability.

Encoder Cables Manufacturers in India - igus


Encoder Cabling Schemes


The type of encoder will determine the range of wires imperative to enable the sensor to speak with the readout device (controller, drive, counters/display, etc.). Incremental encoders will require one wire for power, one wire for ground, and one wire for each extra channel. Incremental encoders are on hand in a range of types including:


Single-channel encoder designs (A channel) to tune speed and displacement

Quadrature encoder designs (A and B channels), which also tune direction

Quadrature encoder designs with an additional index channel (Z channel) to set up a domestic function as soon as per revolution

Encoders with extra commutation tracks (U, V, and W channels)

For high-noise environments, a differential encoder may additionally be an appropriate solution. In these designs, a differential line driver generates two outputs for every channel: the regular sign and its complement. Any noise spikes will show up in each signal, enabling the receiver to filter it out as common-mode noise. Implementing this scheme requires two wires for every channel.


  1. Incremental Encoder Cable Schemes

  2. Incremental encoder wiring schemes


Absolute encoders transmit absolute function as a multi-bit digital word. They can be connected using parallel wiring, fieldbus, or point-to-point wiring. The wide variety of conductors wished for each kind varies.


Learn more about absolute encoder verbal exchange protocols here


  1. Absolute Encoder Cable Schemes

  2. Absolute encoder wiring schemes


Importance of Encoder Cable Quality

Successful encoder to power verbal exchange relies upon the capability of the encoder to send a move of easy voltage pulses to the receiver.


Particularly if the readout machine is using greater state-of-the-art methods such as edge detection on a quadrature encoder, it is important that the signal consists of square pulses with a desirable signal-to-noise ratio. The voltage degree of the pulses is also important. Some drives and controllers have thresholds for voltage detection, and will not become aware of pulses below a positive voltage.

Several factors degrade signal quality, the two most important being transmission distance and noise environment. Electrical cables suffer from capacitance, inductance, and resistance, all of which act to propose a voltage drop. High capacitance increases the RMS contemporary draw of the cable. The longer the travel, the larger the effect.


To maximize signal strength, the first response ought to be to stumble on your receiving gadget as shut as viable to the encoder. Beyond that, there are countless things you can do with encoder cabling to improve performance. Start by specifying the great first-class low-capacitance cable you can afford. Every cable has capacitance but the decrease it is, the much less of the signal you will lose in transit. Increased capacitance raises the RMS current draw of the wire and the greater the modern draw, the lower the signal. In addition, generating extra amperage triggers heating in the output driver of the encoder. Too many parts can throw the encoder into thermal shutdown.