Technogym Step 500i, Service Maintenance Manual

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STEP EXCITE: Service & maintenance manual - rev. 1.4
Page 3.9
The board includes the following indicator LEDs:
LED name Color Description
LED1 green
if ON the board is supplying the brake
winding.
if BLINKING the Brake board is in an error
condition.
LED2 yellow
if ON there is the +5 Vdc supply from the
circuit board.
3.1.8. B
RAKE
This is an eddy current brake, consisting of a flywheel mass and a flat copper disk that rotates in the
air gap of a winding. Variations in the winding current produce a change in the resulting field,
which consequently varies the eddy currents induced within the copper disk and hence its resistance
to movement.
The winding has a resistance of approximately 3.3 Ohm.
A klixon thermal cut-out, installed directly on the winding, interrupts the circuit whenever it detects
a temperature exceeding 140°C.
3.1.9. S
PEED SENSOR
Only for 500i, 700i and 700i E versions.
This consists of a magnetic induction sensor which detects the heads of the brake disk fixing
screws.
3.1.10. NTC
On the machine there are two NTC thermistors used for monitoring the temperature of the Brake
board and the brake winding. The monitoring of these two components makes it possible to reduce
the power when a given temperature threshold is reached, or open the circuit and cut off the power
altogether if this reduction fails to stop the rise in temperature.
3.1.11. P
OWER ENTRY MODULE
Only for 500i, 700i and 700i E versions.
This is a module consisting of:
•
power inlet socket;
•
power outlet socket;
•
fuse-holder for protecting line voltage and neutral with two 3.15A fast-blow fuses.
It is situated on the side of the rear platform. The power entry module has a maximum current rating
of 10 A. This places an upper limit on the number of machines that can be connected together.