Simrad AP48 - System Alarms and Corrective Actions

Alarm/Warning Possible cause Recommended action Anchor
Anchor drift alarm, vessel movement exceeds the set limit.
• Take appropriate action to handle the vessel • Reposition the anchor
Anchor depth Anchor depth below set limit.
• Take appropriate action to handle the vessel • Reposition the anchor
CAN bus supply overload Current > 10A.
• Check summary unit loads • Excessive current draw • Check for short circuit/defective device on network
Deep water Depth exceeds the set limit.
• Take appropriate action to handle the vessel • Navigate to shallower waters
Low boat speed Boat speed below set limit. • Increase boat speed Low CAN bus voltage CAN bus voltage < 10 V.
• Check battery/charger condition • Check cable length, bus load and bus supply feeding point • If possible, check if fault disappears by disconnecting some
units
No GPS fix GPS lost contact with satellites. • Check that the GPS antenna has a clear view of the sky Shallow water Depth below set limit.
• Navigate to deeper waters • Proceed with caution • Check charts
True wind high True wind speed above set limit. • Take appropriate action to secure boat, sails and crew
System alarms