Technogym JOG EXCITE - Page 30

JOG EXCITE: Service & Maintenance Manual - rev. 1.1
Page 3.10
This is a square wave signal with frequency 50 Hz (T=20 msec) and 50% duty cycle generated
by the Hall sensor when the elevation motor moves. This signal enters the AT driver (pins 6-4
of connector J7) and provides the feedback of the motor movement.
This signal alternates between a low value of 0 Vdc and a high value of 5 Vdc. When measured
with a multimeter, this signal is at either 0 or 5 Vdc when the motor is stopped, while during
motor movements it is approximately 2.5 Vdc.
In order to function correctly, the Hall sensor requires a +5 Vdc supply voltage which it
receives from the elevation board (pins 5-4 of connector J7).
• Limit switch signal
The limit switch is a NC contact entering the AT driver (pins 3-8 of connector J8), which opens
when the machine pressed it during the power-on reset procedure.