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How does a Raven 440...
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Posted 6/3/2021 05:40 (#9039326 - in reply to #9038611)
Subject: RE: How does a Raven 440...

Don't call it a 'gator, it's a Ranger
Yes, the explanation is correct. In a 440 the power flow goes something like this. Whenever the 440 has power to it, the circuit board receives power and is "alive". When the Power switch is ON, the circuit board display comes to life and power is available to the Master Switch. If the Master switch is ON, power is then available at the input to each section switch. If a section switch happens to be ON, power (12V) is delivered out of the 440 to the section valves AND also is fed to the circuit board as a input. The program in the microcontroller uses that information to decided if which boom widths should be used for area and rate calculation.

The Raven 450 is the same but has a slightly different program and 6 section switches. The Raven 460 has no built in section switches. That means some type of external switch box must be used. It simply provides 12V to the various colored wires that actually open the section valves and feeds this 12V to the circuit board like a 450 or 460.

The Orange and Orange/white wires on a 440 harness are just in parallel with the built in Master. That means putting a common switch between them can be used as a Remote Master instead of using the Master in the 440. Since the new switch is wired in parallel, use one switch or the other. Leave the unused switch in the OFF position.

Also since the Orange is "hot" whenever the Power switch is ON, it can be used as a power source for speed devices that need power only when the 440 is ON.

Edited by tedbear 6/3/2021 05:42
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