Technogym Glidex 600 XTPRO, Service Maintenance Manual

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GLIDEX 600 XTPRO: Service & Maintenance Manual - rev. 1.1
Page 3.3
•
1 serial port for connecting to the TGS reader;
•
1 serial port, currently not used, for future connections;
•
1 RJ45 port for the power supply to the portable Cardio Theater unit.
3.1.5. P
OWER SUPPLY
Receives the mains voltage at its input and outputs the DC voltages (+5 Vdc, +12 Vdc and
−
12
Vdc) which supply the display and the alternator interface board.
The machine uses only +5 Vdc and +12 Vdc.
3.1.6. A
LTERNATOR INTERFACE BOARD
Receives from the display a square-wave signal whose frequency is proportional to the selected
level of difficulty, and converts it into a DC excitation voltage for the alternator. Receives the RPM
signal from the alternator, which it filters and sends to the display for calculating the speed.
3.1.7. A
LTERNATOR
Is put into rotation by the user, and generates a resistance to the movement proportional to the
excitation voltage received from the alternator interface board. It also generates the RPM signal (6
impulses per revolution) necessary for counting the number of revolutions and hence measuring the
speed. Its rotation produces energy which is dissipated by the power resistor.
There is a thermal cutout connected in series with the excitation circuit, which is normally closed
and opens when the temperature exceeds an established threshold.
3.1.8. P
OWER RESISTOR
Has the function of dissipating the energy produced by the alternator.