8U GV1 Programming
TX Programming Go into the GOV menu on the 8U and turn it on as it is inhibited by default. For this portion, you’ll also need to make sure that both idle-1 and idle-2 are turned on, even if you won’t be using them to fly. CH7 and CH8 ATVs should be set to 100% both ways. Go into the final screen and set operation to SW-E (the idle up switch), then set the %ages as follows: NORM 0, IDLE-1 50, and IDLE-2 100. On the next screen set CH8, and on next lmt-. This will allow you to use Switch B to turn the Governor on and off in flight, and select differing speeds based on the position of the idle-up switch. GV-1 Initial Programming Set the Limits as described in the manual. You need to make a decision on whether or not to use stick switching. I use it, as it makes normal mode behave like normal mode – the throttle goes to idle when you pull the stick back. If you turn stick switching off, then once the head has come up to speed it will not idle until you either turn the governor off, or hit throttle hold. For idle ups, use a curve which reasonably replicates the curve you use without the governor installed. This way if it fails in flight, when in an idle up mode, it won’t fall out of the sky. If you want to use stick switching, make sure that the minimum throttle point is no less than 15% (if it isn’t then something is desperately wrong with your set up), this way the governor won’t turn off when you are in idle-up. If you decide to do it then set the throttle to half stick, go to the StSw screen and use the DATA buttons to make sure it displays ON. Now go to the SWPt screen, still with the stick at 50%, and with switch B in the down position, and throttle hold off use the DATA keys until the screen displays ON Go into the speed selection screen with the flight mode switch in normal. Set the speed to 1000. Go into idle up 1 and set it to 1500, now go into idle up 2 and set it to 2000. (Don’t worry about the actual speeds you want, you’ll set those from the transmitter) The SWCd screen allows you to check that governor switching is working correctly. The governor should be on only when ALL THREE of the following conditions are met: Switch B is down Throttle Hold is not selected The throttle position is greater than 20% (or idle up is selected) You’ll only really use switch B during testing and set up to turn the governor on and off in flight. It is worth using it now and again just to make sure that the governor is not masking any problems. It contributed to the problem I had with the clutch yesterday. Now use your TX to set the head speed you want in each mode. Go into the governor menu in the Advance menu and set the speed using the following formula: If you want a head speed of 1200 (why would you!) set the %age to 20 1550 set 55 1910 set 91
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