9.0 Fault Identification; Component Description - Applanix POS MV V5 Installation And Operation Manual

9.0 Fault Identification

Important:
1. Equipment shall be serviced only by qualified personnel.
2. The PCS (POS MV V5, POS MV V5-1 and POS MV V5-2) shall be grounded via the safety ground
screw or stud.
3. Power to the POS system should be protected by a user-supplied, resettable circuit breaker.
Position and Orientation System for Marine Vessels (POS MV) development efforts are centred on the
need for the system to operate for long periods in rigorous marine environments with minimal
maintenance requirements.
POS MV incorporates self-diagnostics in the form of a Fault Detection Isolation and Reconfiguration
(FDIR) algorithm. FDIR monitors the health of the various system components and, in the case of sensor
degradation or failure, automatically reconfigures the system to minimise the effect of the degradation.
The POS MV uses two methods simultaneously, to inform you that the system has experienced a failure
or performance degradation:
• Lights on the POS Computer System (PCS) front panel will show a fault condition
• The MV-POSView Controller program will provide a more detailed description of the problem
By planning and conducting regular maintenance procedures, described in the Regular Maintenance
description starting on page 8-6, the POS MV will continue to provide a high standard of service and
performance.
If you suspect a fault condition on the POS MV, follow the instructions in this section of the manual to
identify the cause. Field maintenance procedures allow the following operations only:
• Identifying problems associated with system integration
• Identifying the cause of system failures
• Repairing the system by replacement of the PCS, cables, or sensing subsystems

Component Description

POS MV comprises the following subsystem components:
• One Inertial Measurement Unit (IMU)
• One POS Computer System (PCS)
• Two Global Navigation Satellite System (GNSS) antennas
Copyright © Applanix Corporation, 2017
POS MV V5 Installation and Operation Guide
Fault
Identification
9-1