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EV1 p70 wont linearize
07-24-16, 04:11 PM
Post: #1
EV1 p70 wont linearize
I recently upgraded all software on my instruments (e7,p70,ev1,acu100). My autopilot does not complete linearization -- after many circles and figure 8s still reads --- . The compass heading on the p70 reads +/- 5 degrees from mag. When I put the system in auto and engage the wheeldrive the unit hangs a hardover to starboard after 2-3 seconds. Seemed to have Worked fine before sw upgrade . help!
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07-28-16, 03:36 PM
Post: #2
RE: EV1 p70 wont linearize
Welcome to the Raymarine Forum chyrne,

As indicated within the software update web pages for the Evolution autopilot components and a/c/e/eS/gS-Series MFDs, it is necessary re-calibrate the autopilot following installation. As the Evolution autopilots are quite easy to configure, I personally recommend that the autopilot be reset (MENU->SET-UP->AUTOPILOT CALIBRATION->COMMISSIONING->PILOT FACTORY RESET) be performed, that the autopilot's dockside wizard be re-executed, followed by a short trip to permit the autopilot to determine deviation at all headings, and the maximum detected deviation. Should the maximum sensed deviation be more then 45 degrees (see the autopilot's diagnostics), then it is recommended that the area around the EV-1 Sensor Core be inspected to ensure that:
- no ferrous materials (engine block, tools, tin cans, etc.) are located within 3' of the EV-1 Sensor Core
- no products featuring magnetic components (ex. electric motors, pumps, speakers, etc.) are located within 3' of the EV-1 Sensor Core
- no high current carrying conductors are located within 3' of the EV-1 Sensor Core

Should the EV-1 Sensor Core not be located within 3' of the above listed items and the EV-1 yield a maximum sensed deviation greater than 45 degrees, then it is recommended that the EV-1 be temporarily mounted above decks in a location well away from the items listed above. Should the sensed deviation fall below 45 degrees in the test location, then it is recommended that the EV-1 Sensor Core's prior installation location and the area at least 4' surrounding be inspected for items capable of producing magnetic fields and either relocate any such items or seek another location for the EV-1 Sensor Core. Should the sensed deviation remain high in the test location, then it is recommended that the EV-1 Sensor Core be bench tested/serviced by Raymarine’s Product Repair Center.
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