Full reverse on jags problematical

[slijin]

Originally Posted by jmiller18

We are using pwm, when we using testing mode and slowly send more and more negative control signals to each jag one at a time, the jags will eventually stop and blink their led's as if the pwm was disconnected but will return to normal operation when we disable and re-enable.

When you incur this fault condition, is disabling and re-enabling the only way to re-establish communication? That is, after incurring the fault, can you re-establish communication by sending a neutral or full forward command to the Jaguar without disabling and re-enabling?

Originally Posted by jmiller18

Also, when we do all 4, the breakers don't trip

What do you mean by this? Are you implying that incurring the fault condition on just one Jaguar trips its breaker, but incurring it all four does nothing? I'm not really sure what you mean. If this was in response to this, though:

Originally Posted by slijin

If you have a large load on these 8 Jagaurs ... you're forcing a current fault condition (Jaguar firmware is written to temporarily cut control when current exceeds 40A; if this is what is happening, the status LEDs will slowly flash red and yellow for ~3s).

then I believe you are misunderstanding what a "current fault condition" is. The 40A breaker will not automatically reset immediately trip when current exceeds 40A. Moreover, there is no physical circuit breaker in the Jaguar; rather, when the Jaguar's internal sensor detects that the current being drawn is exceeding 40A, the Jaguar's firmware will respond by incurring a current fault condition by cutting control for 3 seconds and flashing the status LED red and yellow.