DC to DC coventor

[Shrubadub]

How to wire and get the DC to DC converter to work with the D-Link Wireless Bridge.

[Al Skierkiewicz]

Doc,
There are a variety of wiring diagrams on the First website. The wiring for the power convertor and DAP-1522 is there. You can find them in the same place that you find the robot and game rules.

[baronep]

On the back of the converter there is a diagram outlining what each of the wires is. Connect the 12 volt + and - to a 20 or 30 amp terminal on the PD board. Then, we cut, spliced, soldered and heat shrunk the 5 volt (+ and -) to the plug for the router. (you remove the wall-wart of course). Use a multimeter to figure out which wire is positive on the router plug. Switch your multimeter to continuity and put one probe in the plug (center is positive) and the other on one of the wires.

Hope this helps
baronep

[Joe Ross]

Originally Posted by baronep

On the back of the converter there is a diagram outlining what each of the wires is.

That wiring does not match the FIRST power distribution diagram, and will result in a robot that loses communication often when battery voltage droops.

[scottydoh]

Originally Posted by Joe Ross

That wiring does not match the FIRST power distribution diagram, and will result in a robot that loses communication often when battery voltage droops.

Theres only 4 wires coming out of the converter, theres only one option. I think what you're trying to say is that if you wire it to one of the regular 20 or 30 amp fuses, it will loose power when the battery voltage drops. It should be wired to the 12v connector on th end of the distribution panel near the 24v connector for the CRio that way when the battery voltage drops, the bridge and the CRio still maintain power.

The distribution diagram can be found here; http://www.usfirst.org/uploadedFiles/Robotics_Programs/FRC/Game_and_Season__Info/2011_Assets/Kit_of_Parts/2011%20Robot_data_power_%20Power%20Dist%202011%20( 24V)%20(1).pdf

[Al Skierkiewicz]

Scotty,
Yes that is correct. The 12 volt and 24 volt outputs on the PD are special power supplies that will continue to generate their respective voltages down to about 4.5 volts on the battery input. Since the Dlink takes about 55 seconds to boot and the Crio can take anywhere longer than 20 seconds to boot, you don't want these two devices to ever reset due to power brown out.

[Trent B]

Similarly consider running the light sensors off of 24v from the solenoid module (they added it in update 5), while they don't have the boot issues they can brown out

Originally Posted by <R60>

Solenoid Breakout outputs shall be connected to pneumatic valve solenoids or photoelectric
sensors, PN 42EF-D1MNAK-A2, only. No other devices shall be connected to these
outputs