Indication: No power output from the speed controller although the Status LEDs work.
Problem: Possible internal damage.
Possible Solutions:
If the Status LEDs on the Talon SRX are operating properly and there is no output, the Talon
SRX may be internally damaged. This condition is typically caused by a short circuit on the
output or there has been an over-current condition that caused a failure.
Check the following:
1. Ensure the Status LEDs are changing between ORANGE, RED, and GREEN with
joystick movement from Neutral, Full Reverse & Full Forward.
2. Disconnect the motor and check the output (M+ to M-) with a voltmeter. The meter
should read between +/- battery voltage with corresponding full range joystick
movement. If the Status LEDs are working properly but the outputs are not working
properly, the speed controller is probably damaged. The final test to determine if the
Talon SRX is damaged is to replace it with another Talon SRX that is known to function
properly.
CAUTION: Prior to replacing a potentially damaged speed controller, ensure that the
wires connected to the output are not shorted and the input is not reversed. Also, verify
that neither of the Talon SRX’s motor output leads are shorted to the motor frame or the
robot chassis.
Indication: No power output from the speed controller and the Status LEDs do NOT work.
Problem: No input power or possible internal damage.
Possible Solutions:
If the Status LEDs on the Talon SRX are not operating properly and there is no output, the
Talon SRX may be internally damaged. This condition is typically caused by no input power or
a reversed polarity on the input.
Check the following:
1. Disconnect the output wires.
2. Ensure the Status LEDs on the Talon SRX do not illuminate at any joystick position.
3. Check the input at the Talon SRX (+BATTERY to GND) with a voltmeter. If the
Status LEDs are not working properly and the input is good, the speed controller is
probably damaged. The final test to determine if the Talon SRX is damaged is to
replace it with another Talon SRX that is known to function properly.
CAUTION: Prior to replacing a potentially damaged speed controller, ensure that the
wires connected to the output are not shorted and the input is not reversed. Also, verify
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