IM noticing something odd with my relay array:
Flight sim/FS2P(alan dyer)/WinXP
Relays controlling 28vdc loads (actuator motors)
At certian points in the flight, several relays have to function together - on touchdown for e.g., we have spoiler deployment, all air/ground systems, etc - all of these control 28vdc power to various devices, each with a load of not more than 2 A DC
I find that at these times, the pidgets cards drop offline/trip off the USB daisy chain.. they sometimes reboot on their own after a few seconds, or don't come back until i restart the PC
Now, If i operate the relay system without the 28vdc supply, they all work fine and stay on the chain... once the 28v is on, and the relays are operated (either by FS2P or the fidget controller) they start dropping off the chain...
I dont see any connection between the usb voltages/signals and the loads that the relay hardware is controlling - (aren't they isolated from each other?) but for some reason, it seems to have an effect on the USB.... not sure what's happening..
The relays are connected to the PC via a powered hub, with more than 2A capacity
Has anyone noticed this?