Technogym Jog Now Excite+ 700, Technical Service Manual

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JOG NOW : Service & maintenance manual - rev. 6.2
Page 6.25
6.12. “GRADIENT NOT WORKING” MESSAGE ON THE
DISPLAY
If the elevation does not work and there is no error message on the display, the elevation
movement may have been disabled in the configuration menu. For further details, refer
to the relevant paragraph of the User menu.
Check parameter PAR 09 is set 15 (1,5 Sec.).
This parameter defines the time window within which the inverter expects to receive a sufficient
number of pulses from the elevation motor, before generating an error condition.
1. This error message indicates that the machine is unable to control the elevation motor. The
error is produced when the inverter does not receive any pulses from the motor encoder
after having enabled it. After this, the machine continues to function with the elevation
motor disabled and parameter PAR 07 set to 1.
2. The error message may be caused by a malfunction of the travel limit microswitch If the
microswitch breaks during use, the machine will enable an upward elevation movement, in
an attempt to open the microswitch contact. If the microswitch fails to open after a
predefined number of pulses, the machine generates an elevation error and halts the
movement.
3. The error message may be caused by a misalignment of the "HALL" effect sensor, if it is not
correctly aligned with its magnet. In fact, if the encoder of the elevation motor is not
correctly positioned, the motor will fail to output any pulses. At this point, the elevation
movement will be disabled, and parameter PAR 07 set to 1.
When the machine is switched on again, the parameter PAR 07 is automatically reset to 0 and the
machine performs the reset procedure. If the error does not happen anymore, supposing it was
generated by a noise, the machine restarts to work properly.
It might also be helpful to refer to the theoretical explanation of the elevation control,
provided in paragraph: 3.23. “Elevation motor drive”.
Continued on following page.