keep getting 211 -X OT alarm randomly every so often. Are there 2 sensors under the turret and is that common. Also I'm thinking it could be issues with the index. I have trouble zeroing out the turret as it does not want to rotate when homing unless I trip an interlock and basically trip the axis referenced light then bring it home and get it referenced. It's been years since I've had any dealings with a CNC and I feel like I'm missing something simple here. Any help or tips would be greatly appreciated.