Voltage Selector Switch; Transformer; Safety Switch; Fan - Technogym Forma Service Maintenance Manual

3.1.9. V
OLTAGE SELECTOR SWITCH
This is a selector which, when used together with a transformer having 2 primary 110 VAC circuits,
ensures the correct power supply to the transformer when powered at either 110 VAC or 230 VAC.
Switching positions changes the connection of the 2 primary circuits on the standard transformer
from serial (for 230 VAC power supply) to parallel (for 110 VAC power supply). It is located on the
low kit electrical box to prevent accidental selections by clients that could interfere with machine
operation.
3.1.10. T
RANSFORMER
Is equipped with two 110 VAC primaries and one 18VAC/5A secondary. This transformer powers
the driver boards for the up-down section.
3.1.11. S
AFETY SWITCH
This is the user safety device. It is implemented by a reed relay which is NC when the "Safety
switch", a plastic button containing a magnet, is correctly positioned on the display panel. Its signal
is input to the CPU board. If the user is in difficulty and detaches the "Safety switch" from the
display by pulling the attached cord, the contact opens and the CPU board detects the transition,
braking the motor to prevent the user from falling.
3.1.12. F
AN
It is a supplementary fan which provides improved cooling of the motor, especially during low
speed operation. The fan receives a supply voltage from the fan interface board when the motor is
running.
3.1.13. F
AN INTERFACE BOARD
The circuit board takes care of enabling the fan when the motor is running. In fact, it receives a
signal from the inverter which closes a relay contact on the circuit board, causing the supply voltage
to be sent to the fan input.
Page 3.4
FORMA: Service & Maintenance manual - rev. 3.0