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3.3 Troubleshooting
In this chapter frequently asked questions and their answers are dealt with.
3.3.1 Question: Cannot Take Control Even when system Seems Ready
Answer:
Set ROT button and Joystick back to zero (middle / center) position. Press CTRL button to activate system. If this is not
working then check the alarm page. Report which alarms are showing.
3.3.2 Question: Wind Compensation Does Not Work
Large screen shows no check box, or 0% Wind compensation.
Answer:
If 0% wind is shown on big screen, double click on this and enter 100%. Then turn on wind compensation by clicking the
check box on the large screen. If wind compensation is still not on, the wind measurement device is out of order or not
selected on the sensor screen.
3.3.3 Question: Use Full Bow and Stern Thruster
The system does not use full bow and stern thruster to counter act current from side of vessel. Why is this?
Answer:
The current compensation is turned off. The regulator has integration that counteracts current with only 50% of power of
the thrusters. Use current compensation by slowly increasing current in compensation input field.
3.3.4 Question: Release Control of Thrusters
How to release control from DP to individual thrusters when the monitor is out of order?
Answer:
Normally the control from DP is released when taking over each thruster to manual at the thruster control panel. When
all thrusters are set to manual control, the DP system will automatically release the control. The RELEASE button at
DIAGRAM or MAP screen is an extra possibility to release the control.
3.3.5 Question: CamClient No Communication
A red cross appears on screen with message CAMCLIENT NO COMMUNICATION, what can be done to solve this
problem?
Answer:
Check which system is out of order. DP_SYSTEM1, DP_SYSTEM2 or JC_SYSTEM. Restart the computer. Check the
result and report this to Alphatron Marine service.
3.3.6 Question: DGPS Diagnostics, How is This Detected?
The GPS seems to be malfunctioning, which error reports and diagnostics are available in the system?
Answer:
The DP system uses NMEA sentences with identifier $--GGA and, if available, $--RMS from the DGPS with the following
diagnostic information:
•
Time from GPS, if this is not updating after 5 seconds an alarm will be activated.
•
HDOP or RMS with accuracy in meters.
•
Jump detection in meters (if sensor changes position in large step in little time).
•
NMEA CRC check fail will activate GPS failure alarm.
If the NMEA stops sending the system will activate GPS failure alarm.
See also paragraph GPS Sensor on page 48 and GPS Sensor weighing on page 48 with information on GPS Sensor.
Only available for high accuracy DGPS.
83 | Maintenance
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