Technogym Recline 500, Service Maintenance Manual

Page: 45 / 182

RECLINE EXCITE: Service & Maintenance Manual - rev. 2.4
brake bo rd interrupts the supply of cur
a rent to the brake and sends an error message to the display
BLOCKED” message.
NALS INVOLVED
The
•
S-485 Signal
al exchanged between the brake board and the display board. There is no
•
rrent
his is the current generated by the brake board (pins 1-2 of connector CN2) which supplies the
inding. The current supplied is a function of the selected effort level and the speed of
•
Pulses
This is the signal produced by the speed sensor, and has the waveform shown below:
board which displays the “THE EQUIPMENT IS
3.2.3. T
HE SIG
machine uses the following control signals:
R
This is a digital sign
provision for monitoring its state.
Excitation cu
T
brake w
the exercise.
Figure 3.2-1
T
s
speed
he ignal enters the brake board (pins 3-4 on connector CN2), where it is used to determine the
value that is sent to the display 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.
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