Yokogawa Gyro Compass Cmz 700 User Manual -

Features two master compasses for high-reliability dual gyro systems with enhancement change-over functions. Accuracy : Static accuracy within $\pm$0.25° sec(latitude) ; Dynamic accuracy within $\pm$0.75° sec(latitude) .

Indicates the rotor failed to reach or maintain operational speed. This could be caused by an inverter board failure, wiring issues, or a seized gyro bearing. yokogawa gyro compass cmz 700 user manual

This is the most frequently accessed part of the manual. It details: Features two master compasses for high-reliability dual gyro