As the title says I have a problem with a GA250 running a DS520. It works ok on the bench with a multiplex standard servo at normal slowest analogue speed and also runs it at the top digital rate of 1.5ms 333hz. The servo responds in a fashion and complains. I expect it would get hot and blow up if I left it too long.
When I connect the DS520 it occassionally works, not very often, perhaps 1 in 20 switch ons. I thought I'd broken the cable in the DS520 as I couldn't get it to work until I'd taken it apart. When I checked the signal levels found the frequency was very close to 333Hz but the voltage level was very low at around 1.5V. It wasn't stable either, even though the gyro was in rate mode and should have been outputting 1.5ms every 3ms. I assume my meter is reading the dc average and so the peak value must be 3V. This is a very low value and I'd like to know if anyone can tell me if there is a standard output voltage from gyros and a standard input voltage for servos.
I could have found that the combination worked ok and it could have failed for no reason during a flight. I wonder how many problems can be put down to this? It may be another property of the input signal like risetime that is the problem or capacitative loading/ input impedance on the servo input.
(I am running at 5.6V at the moment.)