Technogym RECLINE EXCITE, Руководство по техническому обслуживанию

Страница: 31 / 158

RECLINE EXCITE: Service & Maintenance Manual - rev. 1.3
3.1.6. C
ONNECTORS PANEL
This is located on the side of the front platform, and provides:
•
an RJ45 socket for connecting CSafe compatible devices.
•
(on 700E model only) a connector for the antenna cable.
3.1.7. B
RAKE BOARD
There are 2 versions of the brake board, one which is used on the mains powered version and the
other on the self-powered version. In either case, the brake board consists of:
•
Power supply section which generates the low voltages used by the machine: +5 Vdc and +12
Vdc. Depending on the machine version, these voltages will be generated either from the 110
VAC or 220 VAC mains supply, or from the alternator-battery.
•
Section for RS-485 serial communications with the Digital Plan Board for:
-
commands determining the resistance that is required of the brake;
-
brake error messages;
-
the commands for modifying the circuit board configuration parameters;
-
the commands for viewing the errors logged by the circuit board.
•
Section which generates the current for the brake winding: varying the current produces a
proportional variation in the resistance of the brake. The excitation current supplied to the brake
is a function of the effort level selected on the display and the RPM value measured by the
speed sensor (angular velocity of the brake disk) and is determined by the values stored in the
braking table.
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.
and 2 jumpers:
Jumper Name Setting Description
JP1 open
JP2 open
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 4.8 Ohm.
Page 3.7