[TowerTalk] Prop pitch rotates when tower grounded to station
Zivney, Terry
00tlzivney at bsu.edu
Mon Nov 19 08:13:36 EST 2012
I have had a similar problem - if any of the motor windings have a low resistance to ground,
turn on. Looking at the schematic, the output of the power supply is turned on by a low
impedance to ground. I have had my motor repaired twice by Kurt for this problem. As
I understand it from Kurt the same thing happens with the Green Heron Prop Pitch
Controller. Notice that the power supply is grounded through the power company
line and hopefully your tower is grounded for lightning. Even a thousand ohms to ground
will cause the problem
Terry N4TZ/9
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