Not once the strong electromagnetic noises have been the main cause of very hard to detect system malfunctions. That is why these noises needs to be reduced as much as possible. Below are presented some basic steps to reduce the electromagnetic noise. 1)…
Connecting an encoder to the gearbox instead of the motor shaft is only possible in the following situations: A stepper motor is controlled in open loop A brushed (DC) motor is used A brushless motor equipped with digital hall sensors is used (trapezoidal…
Here are several recommendations for encoder connections, in order to avoid loss or perturbation of encoder pulses in environments with strong electromagnetic interference: 1) Shield the encoder cables. Connect the shield to the earth potential, only at one…
In case of very long motor and feedback sensor cables please check the following recommendations: Motor connection 1) Mount some inductance in series with the motor wires (immediately after the drive motor output terminals). Remarks: - the additional inductance…
1. HTL single-ended encoders Circuit characteristics: - threshold low = 3.6 V ... 5.6 V - threshold high = 7.4 V ... 8.2 V - hysteresis = 2.6 V ... 3.6 V - current sink from encoder output high = 2.1mA - current sourced to encoder output low = 0.6mA - maximum…
In case of a P&D masters that have 24 V PNP outputs, the following adaptation circuit should be used, to connect the pulse and direction signals to the "Feedback #1" connector (set for single ended inputs) of the iPOS4803, iPOS4808, iPOS4806, iPOS8010,…
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