Victor 888 "y" cable issues

[RufflesRidge]

Originally Posted by theawesome1730

I do not however understand how a victor running 1% output can put out 12 volts.

Was that measured unloaded?

I agree that the cause of this is almost certainly the added load of a second Victor affecting the rise and fall times of the PWM signal enough to land just outside the 888s deadband. Try calibrating the Victors while they are attached to the Y cable and I expect the problem will go away.

[Ether]

Originally Posted by RufflesRidge

Was that measured unloaded?

Here's a graph of an 884's output voltage vs input pulse width, with the output essentially unloaded (1500 ohms).

[Racer26]

I found when working with 4343 that we had to calibrate our Victor 888's on the Y cables to get them to behave nicely. Took a few tries to get "off" to be "off" and not "on just a hair"