Fail to Safe Properties Item Fail Track Control (TCS) Test Result Position sensor antennas When either of position sensor Remove No.1 1 to be blinded off. acquisition stops, TCS emits alarm but position sensor continues to function utilizing acquired antenna position from other position sensor, LOG, and GYRO. When both position Remove No.2 sensor acquisition stops, TCS emits position sensor alarm but begins navigation utilizing antenna estimated position made available by LOG and GYRO. Then it (after 10min) automatically switches to Radius mode and manual maneuver will be in effect. Disconnect position Same as above Remove No.1/2 2 sensor on a straight leg. position sensor Disconnect position Alarm will be emitted only from ECDIS Remove No.1 3 sensor during max radius which places no influence on TCS position sensor turn. function. output connector
Fail to Safe Properties Item Fail Track Control (TCS) Test Result 1 Position sensor antennas to be blinded off. When either of position sensor acquisition stops, TCS emits alarm but continues to function utilizing acquired position from other position sensor, LOG, and GYRO. When both position sensor acquisition stops, TCS emits alarm but begins navigation utilizing estimated position made available by LOG and GYRO. Then it (after 10min) automatically switches to Radius mode and manual maneuver will be in effect. Remove No.1 position sensor antenna Remove No.2 position sensor antenna 2 Disconnect position sensor on a straight leg. Same as above Remove No.1/2 position sensor 3 Disconnect position sensor during max radius turn. Alarm will be emitted only from ECDIS which places no influence on TCS function. Remove No.1 position sensor output connector
TECDIS%20Checklist%20EN%20rev%202_4.docx