Trouble woth the jaguars

[Thundr Whale]

While using one of our jaguars it overheated so we are looking to put fans on it. Have any other teams done this and if so how?

[keehun]

We have been using ours for a solid year and it has never had an issue with over heating, even with all the dust problems last year (our ball mechanism blew a LOT of air)

[apalrd]

The Jaguars have integrated fans, so no extra cooling should be necessary. Check to see if that fan is running.

How much runtime does it take for them to heat up? What kind of loading are they under? They should heat up a bit because of the way they operate. They switch FET's at 15khz, under 40+ amps of spiike load, so they should generate some heat.

Did they release smoke? If so they are dead.

[Al Skierkiewicz]

Thunder,
In exactly what way did it overheat? Was it smoking, just hot to the touch, or did it tell you so via CAN bus? It is not likely to get hot under normal conditions. However, if you say that the motor it was feeding was also hot and so to the wires it is connected to, then yes it could get how. That is an indication that you are running near max currents on the motors your are using. Max current on the CIM is 129 amps which over a length of time will heat all components in the electrical system feeding that motor. The power FETS used in both the Victors and the Jags are rated for 40+amps each and there are three FETs wired in parallel which should handle the loads we have.
If the Jaguar was smoking, it is likely damaged. If it reported over temp on the CAN bus but was not hot to the touch, you may have an error elsewhere.

[dyanoshak]

Were the Jaguars faulting (slow blink red) while driving your system? A slow blink red indicates there was some type of fault; two examples are over current and over temperature.

The over current fault will reset in a short period of time, while the over temp will only reset when the internal Jaguar temperature falls below the threshold.

[RyanN]

Make sure to give the Jaguars's some room between each other. Unlike Victors, that have open components to let air escape, the Jaguars have vents in the plastic for the heat to escape from.

The manual (http://www.luminarymicro.com/index.php?option=com_remository&func=download&id=1127&chk=a33c2db2129b0676f1ea8d58e3e6f941&Itemid=591) recommends 1/2" of clearance. It also shows fault conditions.

Since you haven't answered how you know it's overheating, and since I'm still weary of a Jaguar actually overheating in regular use, I would check to make sure the limit switch jumpers are secured in place.

I don't believe this to be an over current or power supply under-voltage since you never mentioned more than one Jaguar doing this, and you hopefully have it attached to an FRC legal breaker.