Brake Control; Mechanics; Controls - Technogym CROSS PERSONAL Service Maintenance Manual

3.3. BRAKE CONTROL

3.3.1. M
ECHANICS
The motion of the pedals imparts a rotation to the primary shaft via the belts connected to the 2
pedals. The primary shaft is connected to the secondary shaft and so to the brake, by means of a
belt. The speed sensor attached to the frame detects the heads of the screws which secure the disk to
the flywheel, and generates a signal proportional to the speed.
3.3.2. C
ONTROLS
The control block diagram is as follows:
To obtain a given exercise effort level, the display board sends the required value of exercise speed
in rpm per minute to the Brake board via the RS-485 serial link. Based on the commands received
the brake board will then apply the appropriate excitation current to the brake winding, which
generates an electromagnetic field.
When the brake interface board receives the signal to generate resistance, the green
LED illuminates.
Page 3.10
CROSS PERSONAL: Service & maintenance manual - rev. 1.1
CPU
BOARD
CN18/CN9
Pulses
BRAKE
CN2
BOARD
Speed
Sensor
RS-485
CN4
Green LED
CN2
Excitation current
BRAKE