Motor Control Diagnostics - LifeFitness GO CONSOLE Service Manual

Motor Control Diagnostics

Label on Name
Board
D33 18V
D50 MTR AC
D7 DOWN
D32 I LIM
D29 MTR
SHRT
D24 MTR VOL
D12 PWM
D6 READY
D21 RELAY
D30 SPD
D10 UP
D34 VCON
Description
Turns on when the transformer secondary that is attached to power ground outputs power.
This indicated that the low voltage transformer is working and implies that the "hot side"
control electronics are active.
Motor AV applied to DC Buss (Relay output is activated).
Current is owing in the elevation control circuit to allow for the down relay controlling the
elevation motor to activate.
Turns on when the current owing through the motor reaches the circuit set maximum. This
indicates that the system is loaded to or beyond its capacity.
Turns on when excessive current passes through the FET. This LED implies that there is a
short in the motor or motor wing.
Turns on dimly when power is rst applied and becomes brighter as the large capacitor
charges. When the LED is bright, this indicates that the motor controller is ready to power
the motor.
Turns on when the incoming PWM signal is logical high with a duty cycle of less than 99%.
The LED will seem to become brighter as the incoming PWM approaches 99% because it is
ashing at a greater rate than the human eye can see.
This is a green LED. This LED will light when the treadmill is in the horizontal position.
When the treadmill is folded the LED will be off.
Turns on when the console commands the relay to turn on. This indicates that power is
present at the relays to energize them. It implies that the motor controller and the console
are communicating.
Flashes each time the speed sensor is triggered. This indicates that the speed sensor is
working and communicating with the motor controller.
Current is owing in the elevation control circuit to allow for the up relay controlling the
elevation motor to activate
Turns on when the voltage regulator on the transformer secondary attached to Chassis
Ground that supplies the console outputs power. This indicates that the low voltage trans-
former is working and implies that there is enough power to turn the console on and that the
"cold" side electronic is active.
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