Motors not working with jaguars

[AndresC]

The motors wont run when they are connected to a jaguar, any ideas as to what the problem is. The light on the jaguar is blinking.

[kuh-nig-its-EL]

There is no PWM cable connected to the jaguar.

[sometimestommy]

Hey. First off i would check the control system diagrams on the frc KOP websites. The big thing i see wrong with it is the lack of a PWM cable that goes into the digital side car. (see control system wiring pdf)

-Thomas

[browny996]

The other thing that i would recomend checking is that your motors are geared right and working

[mikets]

Originally Posted by AndresC

The motors wont run when they are connected to a jaguar, any ideas as to what the problem is. The light on the jaguar is blinking.

According to the picture, you need to tell the Jaguar to "turn" the motor and you can't tell the Jaguar anything until you either connect a PWM cable or a CAN cable to it and have some code to tell the Jaguar how fast it should turn the motor. BTW, the blinking light tells you exactly that (that nobody is talking to the Jaguar - no connection).

[AndresC]

We connected the PMW cables but it did not worked. The motors work fine, they work when we connect them to a power source. Can someone post a link to the diagram.

[mikets]

But did you execute code to tell the Jaguar what power to turn the motor? And where did you connect the PWM cable to? It should be connected to one of the PWM channels of the digital sidecar.

[PAR_WIG1350]

Not only do you need a pwm cable from the jaguar to the digital sidecar, but the digital sidecar must be connected to the crio and the crio, digital sidecar AND the jaguar must be connected to the power distribution board to receive power.

Edit: Also, check your crimping, the red motor lead seems to be crimped incorrectly, there should be no metal from the wire visible. Also, you should be able to hold the connector in one hand and the wire in the other and tug it without the connector falling off.

[AndresC]

The code doesn't come with the default program? PAR_WIG1350, everything has power going through it.

[mikets]

Ok, here is the power connection diagram.
http://www.usfirst.org/sites/default...olenoid%29.pdf

And here is the signal connection diagram.
http://www.usfirst.org/sites/default...28PWM%29. pdf

Although the line that connects the PWM channel 1 of the digital sidecar to the Jaguar is technically incorrect. It doesn't go into the RJ-11 connector. It should go to the 3-pin header labeled PWM on the Jaguar.

[mikets]

Originally Posted by AndresC

The code doesn't come with the default program?

Depends. What default program are you loading to the robot? FIRST provides many sample code. You need to make sure you are using the correct one that matches your robot's configuration (i.e. using Jaguars in PWM mode) and make sure it is using the same PWM channel that you connected your Jaguar to. And of course, you also need to make sure your modules are plugged into the cRIO correctly (module 1: analog, module 2: digital and optionally module 3 solenoid). You also need to make sure your DB37 cable that connects the digital module to the sidecar is fixed. If you haven't heard anything about the DB37 cable, you haven't fixed it. There are many threads in the forums talking about the DB37 cable. Search for it.
http://www.usfirst.org/sites/default...structions.pdf

[Ether]

Originally Posted by AndresC

The motors wont run when they are connected to a jaguar

Count your blessings.

Before you do anything else, secure that CIM so it doesn't jump off the table.

[AndresC]

Originally Posted by mikets

Depends. What default program are you loading to the robot? FIRST provides many sample code. You need to make sure you are using the correct one that matches your robot's configuration (i.e. using Jaguars in PWM mode) and make sure it is using the same PWM channel that you connected your Jaguar to. And of course, you also need to make sure your modules are plugged into the cRIO correctly (module 1: analog, module 2: digital and optionally module 3 solenoid). You also need to make sure your DB37 cable that connects the digital module to the sidecar is fixed. If you haven't heard anything about the DB37 cable, you haven't fixed it. There are many threads in the forums talking about the DB37 cable. Search for it.
http://www.usfirst.org/sites/default...structions.pdf

We are using LabVIEW and there is only one default default robot code in it.

Originally Posted by Ether

Count your blessings.

Before you do anything else, secure that CIM so it doesn't jump off the table.

We had tested it out before so we knew the motor would not work. We had the motor on the table so that we could have a clear picture.

[AndresC]

Originally Posted by mikets

Ok, here is the power connection diagram.
http://www.usfirst.org/sites/default...olenoid%29.pdf

And here is the signal connection diagram.
http://www.usfirst.org/sites/default...28PWM%29. pdf

Although the line that connects the PWM channel 1 of the digital sidecar to the Jaguar is technically incorrect. It doesn't go into the RJ-11 connector. It should go to the 3-pin header labeled PWM on the Jaguar.

We did this, we put the left motor to PWM 1 and the right motor PWM 2 but still nothing is working. Could it have to do with the cRIO

[Prototype151]

To get the motors working correctly as i understand, not only do you need to hook it up the the jaguar and correctly configure all other hardware, but you also need the code which can be found under Support-->Example programs[Labview] There is 2 main motor configs, tank drive and arcade drive. I believe that arcade drive is default for robot name if you start a new crio project. The scematics for setting up the hardware[Electrical] can be found here
http://www.google.com/imgres?q=elect...00JnvBw&zoom=1
PS:the link is kind of big sorry