The Speed Signal Is Incorrect - Technogym RECLINE EXCITE Service Maintenance Manual

RECLINE EXCITE: Service & Maintenance Manual - rev. 1.3

6.11. THE SPEED SIGNAL IS INCORRECT

The speed signal is incorrect if:
• The brake disk is incorrectly fixed to the flywheel;
• The speed sensor is defective;
• The brake board is defective.
Replace the brake board
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below:
(1) Check that the 6 screws fixing the disk brake to the flywheel are all locked down.
The speed sensor detects the heads of these screws.
(2) Place the tester probes across the terminals of the speed sensor. The measured signal should
be that indicated in Figure 3.2-1. In addition, when pedaling at 80 RPM the frequency of the
signal should be 107 Hz.
The speed signal can also be observed qualitatively, using a multimeter. The value
should be 0 Vdc when the machine is stopped, and gradually increase as the speed
increases.
THE SPEED IS
INCORRECT
Is the brake disk correctly f ixed
to the f ly wheel?
YES
YES
Does the speed sensor send
the correct signal to the brake
board?
1
NO
Fix it correctly
2
NO
Replace the speed sensor
Page 6.29