Technogym RECLINE EXCITE Service Maintenance Manual page 36

• 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.
• 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.
• Pulses
This is the signal produced by the speed sensor, and has the waveform shown below:
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.
Page 3.12
RECLINE EXCITE: Service & Maintenance Manual - rev. 1.3
Figure 3.2-1