Technogym RECLINE EXCITE, Руководство по техническому обслуживанию

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RECLINE EXCITE: Service & Maintenance Manual - rev. 1.3
Page 3.12
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RS-485 Signal
This is a digital signal exchanged between the brake board and the digital plan board. There is
no provision for monitoring its state.
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Excitation current
This is the current generated by the brake board (pins 1-2 of connector CN2) which supplies the
brake winding. The current supplied is a function of the selected effort level and the speed of
the exercise.
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Pulses
This is the signal produced by the speed sensor, and has the waveform shown below:
Figure 3.2-1
The signal enters the brake board (pins 3-4 on connector CN2), where it is used to determine the
speed value that is sent to the digital plan board via the RS-485 serial link.
This signal can also be measured qualitatively using a multimeter. With the machine
stopped the voltage measured across the sensor terminals should be 0 Vdc, and while
pedaling it should go to a few hundred mV: the higher the speed, the higher the
measured value.