[TowerTalk] Orion/Msq Rotator's

[jcowens1 at comcast.net]

The earlier Orion rotator's had AC motors which is what I have (RC2800P-A). The rotator has limit switches at each end of the rotation range which will interrupt the drive voltage whether or not you release the control switch. I don't think it is possible to "toast" one. Msquare units now have dc motors which are an improvement. The ac motors work fine, but are a little more vulnearable to noise which can cause it to continue rotating after you release the control. I bought mine used about 6 years ago and it does this about twice per year. Immediately turning off the power switch will interrupt this erroneous operation, and then you can re-check position calibration. Re-setting the calibration is very simple. 



I believe I just read another email about someone who had a mast securing bolt shear off. Orion/Msquare specifically recommends that you do not secure the mast to the rotator clamp with a bolt. High torque produced by a wind gust could destroy the rotator drive gears and ruin you rotator. 


John Owens -  N7TK