Servo Problems
 

I am trying to figure out how to get our servo to work. I plugged it into pwm slot 6 on the digital sidecar plugged into slot 4 of the crio. I opened the servo example in labview, changed the ip address of the crio to the correct address, then ran the code. When I adjusted the control from the labview dashboard that should have set the angle of the sensor, the sensor did not respond. When I try to turn the servo by hand, it turns as if it has no power. The dashboard indicator indicates that it thinks it turned to the correct angle, but there is still no responce from our servo. Help would be greatly appreciated.

Re: Servo Problems
 

You didn't mention placing a jumper on the sidecar next to the PWM. Also, check to see that the sidecar is properly powered and LEDs are lit. Finally, even for servos, you will need the driver station running and you'll need to enable the "robot". The code may not care about the mode, but disabled mode completely shuts down the outputs.

Greg McKaskle

Re: Servo Problems
 

Thank you, thank you, thank you. I did not know that those pins were jumpers. Does not jumping them make them work like a dc motor? That would explain my problem. I will test this monday

Re: Servo Problems
 

why do you need to place a jumper next to the PWM?
we didnt use jumpers for any of our jaguars, and they work fine.
Is this a servo thing?

Re: Servo Problems
 

It's a servo only thing.

Jaguars get power to run directly from their 12v connection to the Power Distribution Panel.

Servos only connect to the Digital Sidecar and need 6v power to operate.
The jumper just makes the center PWM pin live with 6v.