Jaguar(s) Acting Odd

We have been practicing with our robot and towards the end of the day today one of the Jaguars we were using became unresponsive. The Jaguar controls our elevator motor with a joystick and when we moved it in any direction (positive or negative) the jaguar light would go from solid yellow to solid red.

We didn’t change any code and it just stopped working. Because of this we first went and replace the PWM wire hoping it might be an easy fix but it ended up not working. The next step we took was to switch out the Jaguar that wasn’t working. When we did this the problem we had transferred over to the jaguar we replaced the “bad” one with.

I am now thinking it might have to do with the PWM still but does anyone have any idea what the problem could be?

Is it possible that you are having current issues with the Jaguar? Did you check the output of the jaguar with a voltmeter?

Does the jaguar function correctly with no motor or no load?

Follow up question, What motor are you using for your lift?

We didn’t do either but we will tomorrow.

We are using a CIM

Could the elevator be jammed or sticky enough to stall the CIM for a few seconds before it begins to move?

What version of firmware do you have on the Jaguar (v109)?

A Jaguar will protect itself from overcurrent if the CIM draws too much, e.g., is stalled too long. The Jag signals this with a red status light.
Older firmware Jags give up a lot sooner when they encounter stall conditions.

Could the elevator be jammed or sticky enough to stall the CIM for a few seconds before it begins to move?

What version of firmware do you have on the Jaguar (v109)?

A Jaguar will protect itself from overcurrent if the CIM draws too much, e.g., is stalled too long. The Jag signals this with a red status light.
Older firmware Jags give up a lot sooner when they encounter stall conditions.

The Elevator doesn’t jam enough it moves quite freely.

I need to check what firmware we are using.

Well we figured out after a little testing that the RED Light was slowly flashing and not solid. Apparently the Limit Switch jumpers were missing from the replacement jaguar. We replaced the limit switches and the problem was resolved.

Because this worked we didn’t confirm or figure out what the initial problem really was on the first jaguar.

Thanks to all the help!:slight_smile: